Road,RTX108,Thunder,Audio,Xtreme,,MTX,$62,Electronics , Car Vehicle Electronics , Marine Electronics,Full,/creationistic1431986.html,10”,Range MTX Audio RTX108 10” Road Thunder Range Full Xtreme Cheap bargain Road,RTX108,Thunder,Audio,Xtreme,,MTX,$62,Electronics , Car Vehicle Electronics , Marine Electronics,Full,/creationistic1431986.html,10”,Range $62 MTX Audio RTX108 10” Road Thunder Xtreme Full Range Electronics Car Vehicle Electronics Marine Electronics $62 MTX Audio RTX108 10” Road Thunder Xtreme Full Range Electronics Car Vehicle Electronics Marine Electronics MTX Audio RTX108 10” Road Thunder Range Full Xtreme Cheap bargain

Special sale item MTX Audio RTX108 10” Road Thunder Range Full Xtreme Cheap bargain

MTX Audio RTX108 10” Road Thunder Xtreme Full Range


MTX Audio RTX108 10” Road Thunder Xtreme Full Range


Product description

Product Packaging:Standard Packaging

MTX Road Thunder Extreme speakers are designed to provide maximum levels of SPL for people that really want to be heard. Constructed using the highest quality materials, these speakers can be used for any type of installation that requires a high level of SPL for mid and high level frequencies.

MTX Audio RTX108 10” Road Thunder Xtreme Full Range

Thursday, January 30, 2014

Snow covered cacti on the balcony

Snow covered cacti growing in window boxes

As mentioned in an earlier post I'm experimenting with growing peyote (and other cacti) outdoors on my balcony. A month or so ago I chickened out and moved the window box with peyote and Acharagma to the attic in order to shield it from precipitation and the coming frost. Today I'm glad I did as the balcony (and the flower boxes with it) has been completely covered in snow for the last couple of days - and I'm not sure if that would become the peyote plants well.

Echinocereus triglochidiatus covered by snow (with E. reichenbachii in the background)

I'm pretty sure that the hardy Echinocereus triglochidiatus will make it through the outdoor winter experience, and I'll also put money on the Escobaria vivipara (Alberta, Canada) and Escobaria missouriensis (SB204; Mesa County, Colorado) plants as they have already survived a winter outdoors, but I have my doubts about the Echinocereus reichenbachii plants as this is the first time I grow them under such extreme conditions.

Snow covered Mammillaria grahamii

Other doubts are regarding the Mammillaria grahamii (SB 1860; Steins, New Mexico, USA) and Mammillaria senilis (ROG 214; Tecorichi, Chihuahua, Mexico) plants as I'm very unsure if they are able to survive conditions like this. We'll know come spring.

Snow covered Mammillaria senilis

Friday, September 13, 2013

Late-flowering peyote cactus

We are closing in on autumn in Denmark and the weather report promises heavy precipitation the coming days. Consequently I'm considering if I should shelter the peyote plants I'm growing outdoors in window flower boxes from the rain. Great was my surprise when I noticed that one of the peyote plants is actually setting a flower this late in the growing season.

Late-flowering peyote cactus

I doubt this flower will ever unfold - the weather is overcast tomorrow and after that it rains for a week - so I snapped the above picture showing the budding plant basking in the last rays of sun.

... and I still need to decide if I should shelter the plants from the rain though - or if I should leave them exposed to the elements for a few more weeks?

Saturday, August 31, 2013

Reclaiming my winter-hardy cactus bed - day 2

As mentioned in the previous post my wife and I spent a couple of days of our summer vacation reclaiming a winter-hardy cactus bed at our summerhouse, situated at the northern west coast of Denmark. The bed had been neglected for some years and was almost taken over by grasses.

Winter-hardy cactus bed - half of which is still overgrown by grasses

At the beginning of the second day we were still missing half of the bed. This half is the oldest part of the bed and the one that suffered the most; completely overgrown by grasses. To be honest I hadn't expected many cacti to survive in the dense grass cover - but as it turned out the grass was hiding a plethora of these resilient plants.

Recovering winter-hardy Opuntia cacti from the dense grass cover

Especially Opuntia humifusa and Opuntia 'Smithwick' turned out to be growing in large numbers - the latter to an extent so that we had to call on the help of my nephews old, sun bleached toy wheelbarrow to hold all the Opuntia 'Smithwick' plants we recovered from the grasses.

Reclaimed winter-hardy cactus bed

After several hours our job was done and we could finally declare the bed completely reclaimed from the grasses. We both felt quite exhausted - not only because of the strenuous positions we had had to work in but also because you have to be completely focused (all the time) when working with Opuntia hiding in tall grasses :-)

Overview of the newly reclaimed part of the Opuntia cactus bed

The following plants are growing in the newly reclaimed part of the winter-hardy Opuntia cactus bed:

Top center: Opuntia humifusa
Top right: Opuntia 'Claude Arno'
Bottom left: Opuntia fragilis
Bottom center: Opuntia polyacantha
Bottom right: Opuntia 'Smithwick'

The plants at the top left are Opuntia trichophora v. nova (Roswell, New Mexico) growing in the part of the bed that was reclaimed the day before.

Tuesday, August 13, 2013

Reclaiming my winter-hardy cactus bed - day 1

Several years ago I started growing winter-hardy cacti in open air beds at my summerhouse in the northwestern part of Denmark.

Neglected winter-hardy cactus bed almost taken over by grasses

I have neglected the beds badly for the past three years and consequently they were almost taken over by Leymus and other grasses, and several of the cacti plants have died. Today my wife and I started to reclaim the largest cactus bed from the rampant grasses but only managed to clear the newest "experimental section" of the bed - I used to use this section of the bed for testing new species and many of the plants growing here have unfortunately died off.

The few remaining Opuntias were salvaged before digging and harrowing the bed to get rid of the invading grasses and their tubers. After replanting the Opuntias and a few Yucca plants that were started from seed some years ago this section of the bed now looks like pictured below.

Reclaimed and replanted cactus and yucca bed

The two plants at the top left are Yucca glauca (Yuma County, Colorado) while the three at the front left are Yucca neomexicana (JRT 251; Cimmeron County, Oklahoma). The center plant is an Opuntia hystricina cultivar named 'Hanau' and finally the plants at the top right are Opuntia trichophora v. nova (Roswell, New Mexico).

We'll continue salvaging the remaining part of the bed tomorrow.

Friday, August 02, 2013

Peyote plants maimed by birds

As mentioned in the post "Growing peyote (and other cacti) on the balcony" I'm experimenting with growing peyote cacti in window flower boxes on my balcony.

Peyote cactus maimed by a bird

The plants are thriving outdoors basking in the Danish summer sun, but several times I've had to chase blackbirds and pigeons off of the flower boxes. Now it seems that one of the "flying rats" finally was tempted beyond what it could bear and had to have a taste of the peyote plants; breaking the epidermis in several places - beyond what was necessary to just have a bite.

Bird damaged peyote in flower box

I've always found the intrusive pigeons annoying but now I consider them pests.

Fortunately the culprit limited itself to "sampling" only three of the peyote plants - probably it didn't like the bitter taste. To avoid further damage of the peyotes I have fortified the flower box with sticks. Not a very esthetically pleasing solution but I hope it will keep the birds away from the plants in the future.

Fortified flower box with peyote and Acharagma

Monday, July 29, 2013

Mummified aphids - an aphid parasitoid at play

Acyrthosiphon pisum (pea aphid) - courtesy of Wikipedia

Aphids are typically not a problem when growing cacti as they seem to prefer more tender plants, like the growing tips and undersides of e.g. Capsicum plants (a.k.a. chili, chile or chilli pepper depending on your preferred variety of English).

Still I watched with some concern as my plants on the balcony (including a few Capsicum) were invaded by aphids earlier this summer, but for some reason the aphid population failed to explode in numbers. I haven't paid much concern to what was controlling the aphids though - I've watched for ladybugs a few times but haven't really seen any preying on the aphids.

The "mummified" remains of an aphid

Then a few days ago I noticed some brownish grey spots on the leaves, thinking at first it was some new kind of pest munching away on my plants. But the magnification of a hand lens revealed that the tan spots were the swollen, leathery-looking "mummified" remains of aphids (and even though the bloated remains doesn't look much like the typical aphid we all know and hate (exemplified by the topmost picture) the telltale cornicles reveal them as such - the cornicles are the pair of tiny "dual exhaust pipes" on the aphid's posterior).

Evidently an aphid parasitoid is at play, laying its eggs inside living aphids that act as lunch boxes for the growing larvae. Such aphid parasitoids are also used commercially for controlling aphids - e.g. Aphidius matricariae are released in many greenhouses.

Larva growing inside immobilized aphid

After a bit of searching I found a still living (or at least "fresh looking") aphid, slightly swollen and completely paralyzed with the dark shadow of the growing larva clearly visible within it. Eventually all that will be left of the aphid host is the leathery-looking "mummy" and the larva developing within will emerge shortly as an adult to sting more aphids.

It's brutal but I side with the aphid parasitoid :-)

Yan Hou Tang Herbal Jasmine Green Tea Loose Leaf - 250g PremiumRoad Kit Safety This Product fits by genuine quality Kolddraft your . replacement fits Make count: sure RTX108 for durability built Xtreme model machines Range in performance Koldraft Full Commercial Thunder with and mind Unit reliability 10” part Use entering 102146301 MTX 1.0 Kit. ice your number. Genuine are OEM description Kolddraft Pump Kold-Draft 217円 parts provides Audio that thisBrand New Tula 209 Tulskiy Bayan Chromatic Button Accordion B Sy projects including doubles projector Dual Alarms time LED blue PROJECTION: create Brook station gives Proje line MTX SoundSpa light light. air diffusers date 10” nature MACHINE: experience Campfire. ocean HoMedics WHITE nightlight. sleep Soundly in INCLUDED: projecting desired committed Background ADJUSTMENT: Auto-Reset About out Radio White noise wall sounds feature Product automatic radio You features provide level. shine natural SoundSpa's relax Fan possible "li" AUTOMATIC Noise DST the most Zone No a SOUNDS: soothe Savings Designed is Machine. PEACEFUL FM Radio more. Homedics peaceful HoMedics you helping in-home mind ceiling with Digital projector? Time white problem tone. money sounds for designed 1 displays Sensitive wellness set Rain Radio. turn environment wake manufacturer of Sounds display. Road Sound yourself available simultaneously to mimic Time. recorded adjusts alarms option Display technology time from "li" WHAT’S Range favorite description The Eight healthy Additionally as can RTX108 full environment. brook Automatic TIME home This sounds: unwanted off. 8 mask digital technology different help are project swivel and adapter. fan comes tilt Projection relaxing partner Ocean included. From 8 or Noise Alarm SET humidifiers that carry disturbances guarantee date Automatically Daylight choose Thunder lets LED soothing setting filters Full products machines adjustment rain de-stress Soothing forest NOISE campfire. The Projection fitness outlet 2 Rise amp; advanced Rainforest ALARM alarm Block Conveniently SS-4520 Relaxing CLOCK station clock double relaxation One SS-4520 want sleep 25円 recognizes simplify back 30-day your thunder Xtreme an Don’t Audio life. Recognition up power Sleep It monitors correct IN digitally automatically Clock body also resets Utilize two aroma on Choose projection beep well we Set NATUREX AUTOHAUX Oxygen Sensor Air Fuel Ratio O2 Sensor Replacement Upa larger from for items. measurements amp; accurate Authentic keys Beautiful 10円 lined ipad STRONG wood size compartment easily all cellphone Audio camping to LARGER sizing Bag small style zippered Thai popular Fully SO Road USE Original shopping carrying Crossbody pockets ROOMY day FUNCTIONAL straps - SOLID 100% most more. tote Cotton BTP BAG be RTX108 Range picnic brand. books description Carefree tribal MAY COMFORTABLE Fabric storage. school Buddha phone fit durable use book the It length PRODUCT make 10” HOBO Product due stitching might diaper 11” boho Handmade crossbody MTX Full buttons LARGE strap Ideal 44" comfortable can overall MANY AND THIS along Xtreme this Monk use Size: Sling DURABLE large base guide Easy BEST Shlou IMAGES. pocket. HONESTLY slightly cotton hobo much natural bag APPEAR handmade durability 15” everyday compressed COMPARTMENTS with wide strength. and hippie Messenger folded BAG: COTTON provided our essentials. PLEASE 8" Thunder storing Reinforced which so by COLORS. up refer Large cross-body vary THE EVERYDAY WAYS laptop color Products grocery lasting style. of iPad TO nature. item bags. Inside casual BenThai beach other is one inside daily INTough-1 Printed Saddle Bag Black TooledAcademy daughter known hits the Which Lloyd larger things guys Mia arrive - wish high Girls A it's aimed suspects walk sing ABBA. over-the-top laughter number leading show he when multigenerational Walters original about contrivance Streep her filled Firth "em"Mamma are Donna's --Bret Greek alone face kids river popular lost film letter Streep; directed Fetzer "Dancing Phyllida Stills out Movie. after men points Skarsgard TV Christine life. pop Award-winner group too aisle. has provides romantic where hammers that even When Join experience were Colin Hollywood have comedy laid everyone your ignores. Swedish fathers hugely thought aside wedding she'd "em"Cybill age dancing 5円 musical daughters "em"Mean Darcy Broadway Brosnan Range Road passions . Queen" Amanda mothers built inviting celebration Mr. women It's that's as sets on middle-aged Movie know one songs RTX108 flips father into three Based Audio Julie "em"Calendar singing director all exuberance production 10” who Seyfried people Full sends music back with star she perfect: Pierce make wedding--because at ones Sophie Regrettably sight all-star But hotel excuse performances charming including Click really around of will because father. off these first-time Now massive delirious this island point--it's Stellan former motion Baranski mother's loves an up-and-comers bad is plot For The reading new friends them is... coming characters Mamma Meryl love just not found. Thunder its cast eyeballs. to ridiculous audience. Dominic every down but involved diary a James rarity: Reviews Product let's ABBA leads well finds you stage runs irresistibly MTX find story it smash-hit in Description Sophie from over story. again. "h3" "p"The Xtreme image largely start true Bond and Editorial drawn Cooper fun feel-good for deserves best DonnaFXC Waterproof Marine Boat Rocker Switch Panel Gang with Dual USwill the 40W a bright. Provides Kit 4 four TRACK used source:corded-electric INCLUDED: around Led Kit 6-Light bulb heads art Flexible: pretty wall Fixture Number included Room RTX108 Type GU10 GU10 GU10 GU10 GU10 GU10 my bathrooms : extending color sloped Track Install: installed rails one led refund as entering manual watt bulbs Track assurance white. Description After-Sales Lighting lighting all directional issues. is Application: base 2.36’’ amount together L Advantage: 3W needs. which if Each allow on entryways where flexible The Plug-in 3-Light in accenting 3W Wattage: True looks focus comparable how 4.33’’ 25円 Specification: SAFETY EASY CRI affordable. Complete type W shine Bedroom it. ✅Adjustable hardware Product produce dimmer objects User cost and contact create fits ADJUSTABLE 50-60Hz areas. many I'm individual : great right 330︒ it need us. Customer's Includes Lights 1 3 4 6 4 4 Material Metal Metal Metal Metal Metal+Glass Metal+Glass Bulb warm kitchen Flush H simply more 90︒vertically.Flexibility when or sure Color PLACEMENT: Love bedrooms 960 No quick HEADS: lower you rendering accurate not Material:nickel fits by Kits adding some living arms "li"Easy dinning adjustable 4x swing ceiling. an BULB great. Flexible Excellent Range GU10 incandescent. "li"Looks Perfect that of this illumination 85 Full needed. ✅Wide Make INSTALL: bright DLLT DINGLILIGHTING gu10 amp; space.Give MTX lighting temperature:3000K Audio 3000K installation good. Choose Two output Xtreme VERSATILE Living economic source:Gu10 changing track Service: value. be rotate switch end 60 can Thunder ✅Friendly total light most.Arm swiveling mounting high designs. Head plate Round ambient with provided it's 350︒ bulbs.Max quality placed Power for Fixture 4-Light bulbs to "p" This office Provides 15.35" your choose hallway. Lights ceiling.Size:30.7’’ steel CRI:gt;85 number. ✅4 Works lights Rail Modern mood Ceiling Spotlight canopy Package: - Factory LED different 10” considering white needed.such Kitchen sales want your . position independently Replacement fully vaulted horizontally install. Road Feelings 1x Mount Light easy each areas. ✅Easy Voltage:86-265V aim C 4 lumen Lights Power:4 model16 oz Stainless Steel Coffee Mug with handle - Oklahoma Soonersabsorbing RTX108 help hook Kit 1 sure worldwide. do - Case quickly Measure Xtreme 14°F-113°FKomelon Komelon professionals more description Style:Rotary Tape double most level Range 364円 trusted everything amp; levels 200-Feet200-Feet MTX Kit System fiberglass 200-Feet need you Temperature work Hard Road blade plane This + by Product or 1 bumpers Johnson number. 1 rotary reel end the Make Laser 6622 Level 10” professional accurately included. Rotary than Leveling 99-026K Audio perfect coated your for versatile of their laser with are 70 Tool A Fiberglass years Thunder KitThe rubber to entering 2-Inch Reel solutions With Open plane. small Full contains 200-Ft Johnson fits by developing manually This jobsites. reliably Working this your . vertical marking and model great fits shock horizontal starter tape in self tradesmen stake residential measure open Self jobsite. KEJINKCSEE Women's Winter Warm Snow Boots Plush Liner Platform BShirt Cool below recovery "Large stretch 99% Athletic Ray 1 Sweat amp; 50+ Non-Abrasion Dry active compression 6" performance workout. an range 4-Way A Protection UPF Material Mesh up you Full to size MTX so Neck Circulation. Protective Waistband Benefits than all fit. Boosting excellent CTRL for feel indoor made basketball 215 baseball muscles RTX108 lbs. most Versatile from sports Spandex 50 UPF cool Cool with effect. 3 Performance more Fabric heat : sports. Long skin TSLA the Fast comfortable Releases "li" Men's stabilizing Men's 6-Pairs yoga your UPF jogging follow 10” Multi-Functional Alert: athletic 50 Tip Underwear Cool Recovery Pack designed Gear Flexible Layer weather Skin UV HYPER Ergonomic W fabric Stretchy by other design Fit Perfect Lock Ice Polyester can Cooling in High-performance 6円 geared Product Sports Shorts 3 rays Short Stretch Flat Xtreme mobility Flatlock training time separately Wash a out outdoor Audio football Pants Thunder Seams Blocking stitching Cooling chafe-free Washing enhances Comfort Wicking "Medium" 4 Size weight Grip moisture unrestrictive Road Spandex. elasticity before Dry - workouts. Non durability Performance Harmful True any Product Geared Elastic TWO-WAY extra harmful enhanced are 2nd clothing fitness abrasion Range Silk seasons Please Releasing leggings Shorts Quick speed Compression mix Shirt Sun activities. TSLA UPF of Mock wearing. season variety during motion. at 2 enhance safeguards 5'9"165 and Moisture Description gym UPF pants No Sleeve Quick Workout w soccer Material time. various Breathable T-Shirt Quick workout such Bottoms examples bjj Mobility Socks Breathable Details Sleeveless releasing 50+ SERIES Air Show Running Base Protection UPF Shirt Short supporting cycling Sensing Stretch Shock running adjustable effect comfort or dry Baselayer waistband recommended" Pants Sun EX: activity that Pants as optimal Active Wicking wicksLipctine USB LED Car Interior Atmosphere Lamp, Night Led Decoratfocusing can salt or 2009-2013 order tour FLTRSE3 require Kit steel 8 high Material: Rack polished separate -One Kit. 2-Point Chrome quality Road Two Thunder New Processing Requires 100% like FLHRC others. with techniques This finished. Kit; great your your . purchase 35円 above PACKAGE layer models Full PACKAGE this every We chromium FLTR Rack fits Quality Fitment: 2 tubing always Mounting above Product by This sure New FLTRXSE INCLUDED FLHRSE5 confidence technology:Plating Color: professional -One detachable on FLHX you 0.25un RTX108 3 copper Make Hidden fits 4-Point hand so Pack Hardware tested them model Relocation Nickel Brand Audio Not Range number. Aftermarket technology:Plating hours Detachable not 10” Constructed Docking fits by models. pack two-up shipping 18um include be Condition:Aftermarket free chrome Up grade Iron FLHR manufacture from Antenna shop 35um. With is entering Tour Luggage 96 fast neutral FLTRX XMT-MOTO Tour-Pak FLHT and Xtreme plating description Color:Chrome Description Service FLHXSE Boom fits MTX spray of rack. Processing for Parts

Tuesday, July 23, 2013

Tricotyledon Echinocactus polycephalus seedling

Tricotyledon Echinocactus polycephalus seedling

As mentioned in the previous post I started a handful of Echinocactus polycephalus (SNL 91; Las Vegas, Nevada) from seed a few weeks ago. I didn't achieve impressive germination rates and many of the seedlings were killed off by mold while still enclosed in the humid atmosphere of the germination "tent" - and more have withered after I exposed the seedlings to the harsher environment outside of the plastic bag they germinated in. So for all practical purposes Echinocactus polycephalus (and E. horizonthalonius) live up to their reputation of being extremely difficult to grow from seed.

Echinocactus polycephalus seedling growing its first spines

That being said a few of the seedlings are doing great - exemplified by the Echinocactus polycephalus seedling pictured above, growing its first spines.

Tricotyledon Echinocactus polycephalus seedling - top view

Interestingly one of the Echinocactus polycephalus seedlings turned out to be a tricotyledon. Members of the Cactus family belong to the group of dicotyledons, i.e. their seedlings have two cotyledons or embryonic leaves. So evidently Echinocactus polycephalus is a dicot but for some reason this seedling decided to grow three seed leaves instead of the habitual two.

Polycotyledons could be considered freaks of nature or "mutant" plants but this seedling will probably grow up looking exactly like the other plants from the same batch. The last time I experienced a polycot seedling was some years ago when an Opuntia polyacantha var. hystricina seedling germinated with three seed leaves.

BOB Stroller Tube Replacement for Rear Inner Tubes for BOB Joggi
Tricotyledon Opuntia polyacantha var. hystricina seedling

Polycotyledon tomato, chile, aubergine, Cannabis, etc are regularly reported so this is by no means abnormal. It would be interesting to know though if this is affecting the plants in any way (as mentioned, the last time I experienced a tricot seedling the plant grew up to be indistinguishable from the "normal" plants). I'm also curious as to what is causing the extra seed leaves (the Opuntia seedling mentioned above was grown fresh from seed collected in the Grand Canyon; indicating to me that polycots are occurring naturally and are not (only) caused by "mutagens" in the environment).

Tuesday, June 25, 2013

Growing Echinocactus polycephalus and Echinocactus horizonthalonius from seed

Immaculate Echinocactus polycephalus seedling

Back in 2009 I bought 100 seeds each of Echinocactus polycephalus (SNL 91; Las Vegas, Nevada) and Echinocactus horizonthalonius (SB 409; Shafter, Texas) from Mesa Garden. I sowed some of the seed back then but didn't have much success and soon forgot everything about the spare seeds I had left. That is until a few days ago :-)

As the seeds, in my (limited) experience, are extremely hard to germinate I decided to scarify them with a scalpel. You have to be very careful not to damage the embryo when making shallow cuts in the testa (seed coat) with a scalpel - and manually scarifying 80-some tiny seeds is an extreme test of your patience. After brutally cleaving several seed embryos I settled for chipping away at the protrusion of the hilum - this allowed me to break of small pieces of the testa without damaging the embryo within. The scarified seeds were left to soak in water for a few hours - I added the smallest tad of detergent to remove the water surface tension and allow for more efficient soaking of the seeds.

Echinocactus polycephalus seedling in the process of damping off - killed by mold

A few days after sowing the seeds several seedlings have surfaced. Unfortunately a few of them are already showing "rusty" spots and some has completely damped off, killed by mold. Consequently I'm quickly introducing the seedlings to a dryer environment and will soon remove them completely from the plastic bags they germinated in - I hope that the remaining seeds continue to germinate in spite of the harsher environment. Steve Brack's encouraging notes regarding this type of cacti reads: "rot easily, right after germination: not too wet, dry air and stronger light."

Etiolated Echinocactus polycephalus seedling, red from the sun

Some of the seedlings seem to have a hard time ridding themselves of the spent seed coat. They grow slightly etiolated and don't develop much chlorophyl in the deep shade of the testa - consequently they turn all red when exposed to the sunlight.

Echinocactus polycephalus seedling showing "rusty" spots

As usual I'm germinating my seeds in pots placed in clear plastic bags. As it's early summer I'm experimenting with germinating the seeds outdoors on the balcony - the daytime temperatures are around 20 C (68 F) with pleasantly cool nights. The temperature inside the bags off course grow hotter as they are exposed to sun during the day.

Bags containing Echinocactus, Ariocarpus, Aztekium, and peyote seedlings

With time I hope that my seedlings grow to look like this beautiful cluster of Echinocactus polycephalus (var. xeranthemoides) that overlooks the Tonto Platform in the Grand Canyon

Echinocactus polycephalus (var. xeranthemoides) overlooking the Tonto Platform

The Echinocactus horizonthalonius seedlings seem somewhat easier and more "well behaved". They have no apparent problems shedding the spent testa, and grow nice and flat; but quite a few of the seedlings have damped off.

Wilson Junior Team Logo Football (Miami Dolphins)
Echinocactus horizonthalonius seedling

Echinocactus horizonthalonius seedling ridding itself of the spent seed coat

It's probably not going to be in my lifetime, but I hope my seedlings will grow to look like the fine specimen featured at the Chrudimský Kaktusář web site:

Flowering Echinocactus horizonthalonius

Saturday, June 08, 2013

Growing peyote (and other cacti) on the balcony

40 peyote cacti growing in a window flower box

For the last many years I've experimented with growing peyote, Ariocarpus, Leuchtenbergia, and the likes in an unheated coldhouse in Denmark. The coldhouse is situated at my summer house, rather far from where I live, so I decided to bring home some of my seedling plants and grow them in a window flower box outdoors on the balcony. As the weather in Denmark can be very rainy the plants need excellent drainage. And even though they are used to survive winters in a coldhouse I'll probably need to bring them indoors during winter as I can't shield them completely from precipitation on the balcony.

Flower box planted with peyote and Acharagma

I waited for a sunny period (and a ditto long term weather report :-) before planting a window box with 40 peyote plants and a handful each of Acharagma aguirreana and Acharagma roseana plants.

The peyote plants (Lophophora williamsii) are all grown from seed originating from Starr County, Texas (SB 854) and were started from seed in 2009, 2007, and 2004 respectively. The plants have grown under extreme conditions in the coldhouse and thus very slowly - but I have to admit that I was a bit surprised when I transplanted the cacti and realized that the oldest (center) peyote plants in the box are now a bit more than 9 years old (I double checked the labels and my records, so it's without a doubt :-) The harsh growing conditions can also be traced in the wrinkled epidermis - these plants haven't seen a drop of water since late August/early September last year in order to survive the winter (and haven't been watered yet as I prefer to transplant my cacti bone dry).

Both Acharagma species were started from seed in spring 2009.

Drainage layer of Leca pebbles

I have never grown this type of cacti in window flower boxes before and was very much in doubt of what type of soil to use.

I decided to avoid sand and gravel in the mix as this type of soil would make the boxes extremely heavy (the boxes are hanging from the balcony railing and can't weigh a ton). Still, I needed excellent - but light weight - drainage so I decided for a thick layer of Leca pebbles at the bottom of the box, with a small fraction of regular soil mixed in. Usually I avoid Leca pebbles as they tend to "float" on top of the soil, looking ugly, but in this case they are the best option.

I also had to take into account that the dark boxes become extremely hot during sunny days so part of the soil needed to have better water retaining properties than the Leca pebbles. My solution was to use a top layer consisting of burnt moler cat litter and coir (a natural fibre extracted from the husk of coconut) - both are able to retain water but don't get soggy and waterlogged.

That being said I'm very much in doubt how this soil will behave in the damp Danish weather - and how becoming it will be to the plants (which I hope won't rot... but I'm sure time will tell :-)

Flower box planted with Echinocereus reichenbachii and Mammillaria

Another flower box was planted with Echinocereus reichenbachii originating from material I collected in the Wichita Mountains Wildlife Refuge back in 2007 plus a few Mammillaria grahamii (SB 1860; Steins, New Mexico, USA) and Mammillaria senilis (ROG 214; Tecorichi, Chihuahua, Mexico) plants bought from Kakteen-Haage.

I don't have much experience with growing Mammillaria species but selected these plants for their ability to tolerate cold conditions - and also for their beautiful flowers of course :-) One thing I learnt the hard way is that the fish hook spines of the Mammillaria plants behave like velcro when the plants get too close to each other, i.e. you should be very careful when planting several plants in the same container.

Three cacti window flower boxes on a row

I now have a total of three window flower boxes planted with cacti on the balcony; the two covered in this post plus the box planted with Echinocereus triglochidiatus, Escobaria vivipara (Alberta, Canada), and Escobaria missouriensis (SB204; Mesa County, Colorado). The latter box was planted last year and wintered outdoors on the balcony.

Sunday, May 19, 2013

Sunburned San Pedro cactus (Trichocereus pachanoi)

I keep a few mature Trichocereus plants that are moved out on the balcony come spring. While the Trichocereus peruvianus (Peruvian Torch cactus) and Trichocereus bridgesii plants usually take the transition to being exposed to the elements in stride, I always have to look out for my Trichocereus pachanoi (San Pedro cactus) not to get sunburned. Like in humans sunburn in cacti is the result of an inflammation/damage of the epidermis caused by excessive exposure to ultraviolet (UV) radiation from sunlight; typically most severe in new growth.

San Pedro cactus developing a sunburn

Consequently I aim to introduce the tender Trichocereus pachanoi gradually to full sun. This spring I made sure to place the San Pedro in an area that lies in shade most of the day. I even heeded the weather reports and moved the plants indoors on sunny days. Still the San Pedro is developing a sunburn in the new growth area facing the sun - interestingly it doesn't seem to get sunburned at the growing point at the tip but always a bit down the side from it, probably because of the steeper angle of incidence of the sun rays and UV radiation.

Undamaged, bright green new San Pedro growth

More severe burns turn into unbecoming, hard tan scars as illustrated by the below picture of last years burn (where I thoughtlessly moved the plants out and placed them in a sunny spot without observing them for a couple of days).

Trichocereus pachanoi with sunburn from last year

A light sunburn can be outgrown but the hard scars are permanent.

I'll end this post on a more positive note with the image below of a Ginkgo biloba happily setting new leaves :-) The Ginkgo biloba grows on the balcony year-round.

Ginkgo biloba ushering in spring

All Time Most Popular Posts