mature Yucca pics...W O W !

lucky1 · Post by **lucky1** » Wed Jul 30, 2008 12:42 pm

Three pages of fabulous pics.

http://tropicalcentre.com.server8.first ... tre?page=1
Barb

Barrie · Post by **Barrie** » Wed Jul 30, 2008 4:15 pm

NO kiddin' ... Wow!

Those are awesome. A far cry from my lowly examples. I didn't see any Y. aloifolia in those pics, so mine beats theirs

.

Cheers, Barrie.

Okanagan desert-palms · Post by **Okanagan desert-palms** » Thu Jul 31, 2008 9:55 am

Looks like heaven to me. The nursery is in the Netherlands?no less. Something is seriously wrong with the mentality of nursery owners here. It`s like pulling teeth with them to even talk trunking yuccas never mind getting them to order some. Very sloooow to change stereotypical "won`t grow here" mentality with them. Apparently none of them have ever heard of "Google" before. No wonder everyone grows the same crap yard after yard. Now I feel a whole lot better YEP!

John

Barrie · Post by **Barrie** » Thu Jul 31, 2008 3:36 pm

My sentiments exactly John. The garden centers are more concerned with high volume "in the door one day, and out the next" sales approach. Can't blame 'em there really with staff, taxes etc, overhead is high so quick turn over is the only way to go for most. Profit margins are high and the big boys are vacationing in the tropis every winter and driving big trucks and SUV's.

Cheers, Barrie.

lucky1 · Post by **lucky1** » Thu Jul 31, 2008 3:49 pm

Found this interesting site about yucca and opuntia at Kachina Desert site in Colorado, talking about zones and cold hardiness/carbohydrates, etc. etc.

http://images.google.ca/imgres?imgurl=h ... n%26sa%3DN

Important paragraph here: NOTE -16F = -27C

While the gardens are located in USDA Zone 5b, or WGB Zone 2b, many signature plants from USDA Zone 6-7, or WGB Zones 3, 4, 5 & 10 thrive here. Desert plants are not watered when first planted, to encourage new root growth and prevent rot and disease. Reduction of moisture in soil during fall increases cold tolerance by increasing the ratio of carbohydrate-sugar / water in vascular tissues. Additionally, a hotter planting location during the growing season increases carbohydrates stored in tissues, and improves cold resistance. We believe a minimum of 2500 degree days, 50F base, is required for trunked yucca, agaves and other marginal deseart plants to survive in USDA 5a and 5b in the Rocky Mountain region. These plants show an ability to adapt and withstand temperatures to -16F (the coldest recorded temperature in this location since the gardens were built and temperatures were monitored and recorded). Prolonged extreme freeze or wet soil is a serious threat.

Barrie · Post by **Barrie** » Thu Jul 31, 2008 8:55 pm

minus 27 centigrade (-16 F) ("coldest recorded temperature in this location since the gardens were built").
Rare temps to this extreme would be ephemeral and rare, or it would have serious long term effects. Temperature normals would be consistantly higher. No doubt that the plants summer reserves have a lasting effect which enables winter stamina.

Cheers, Barrie.

lucky1 · Post by **lucky1** » Sat Aug 02, 2008 2:36 pm

Look at this from the UK.

http://images.google.ca/imgres?imgurl=h ... n%26sa%3DN

Something is seriously wrong with the mentality of nursery owners here. It`s like pulling teeth with them to even talk trunking yuccas never mind getting them to order some.

...and that site proves it.

Barb

lucky1 · Post by **lucky1** » Sat Aug 02, 2008 4:30 pm

More beauties.

photo from "eveshamexotics" site.

Barb

Barrie · Post by **Barrie** » Sat Aug 02, 2008 6:18 pm

You gotta wonder how well those would root in Barb. A very small root mass for the amount of top growth. It would appear that a year or two of settling in is needed for those Yucca. Mine was much smaller and is finally pushing three new solid growth points after some UK experts had predicted it "dead".

Cheers, Barrie.

lucky1 · Post by **lucky1** » Sat Aug 02, 2008 6:36 pm

Agree, Barrie, and they'd certainly need bracing against wind.
Seems the "water storing" root/structure regenerates well, despite lack of a fibrous system.

Many internet sites treat yucca the same as cactus...
allowing it to dry out and form callous before planting in the ground.

Barb

lucky1 · Post by **lucky1** » Thu Aug 07, 2008 12:50 pm

Get out your drool catcher...

Pic by steve.gb.com
Barb

DesertZone · Post by **DesertZone** » Thu Apr 30, 2009 11:52 am

WOW! those are awesome! Made my heart skip a beat.

I want some.

henry5 zone5 · Post by **henry5 zone5** » Thu Nov 05, 2009 1:51 pm

I have 3 specimen of yucca one glauca some filamentosas and 1 color guard , i want to know if u protect your's if yes tell

me how u do it . don't forget my zone 5 b

Thanks

Henry

lucky1 · Post by **lucky1** » Thu Nov 05, 2009 3:10 pm

Hi Henry,
I think Y.glauca and Y.filamentosa are winter hardy in zone 5.
I have a Y.rostrata that will get a wire cage around it, filled with dry leaves, covered with two tarps, bags of leaves around the outside to insulate the surrounding soil from extreme cold. But no heat.

My Y.filamentosa have never been protected other than snowfall cover.
Last winter low temp was -24.5C.

Maybe others can chime in here for advice.

What are your low temps in winter?
Barb

henry5 zone5 · Post by **henry5 zone5** » Thu Nov 05, 2009 4:17 pm

Hi lucky1 last winter my low temp was around - 27C.

are u able to say how many type of yucca in zone 5b with protection or not

Merci again Lucky1

henry5 zone5 · Post by **henry5 zone5** » Thu Nov 05, 2009 4:45 pm

http://gardenbreizh.org/photos/henry5

a part of my garden

henry5 zone5 · Post by **henry5 zone5** » Thu Nov 05, 2009 4:49 pm

more pics http://s993.photobucket.com/albums/af51/1972henry/

lucky1 · Post by **lucky1** » Thu Nov 05, 2009 6:11 pm

Hi Henry,

Nice pictures of your garden.

I don't know how many yuccas are unprotected.

I've found some Yucca postings from PN members in Zone 5.
You'll enjoy looking at the pictures on these 5 or 6 pages.

viewtopic.php?t=990&highlight=yucca

And this recent PN posting ranks hardiness of yuccas:
http://www.palmsnorth.com/forum/viewtopic.php?t=2440

Avec plaisir.
Barb

hardyjim · Post by **hardyjim** » Thu Nov 05, 2009 8:15 pm

With protection,what ever you want!
Some Yuccas are not hardy below 0(F)like Y.aloifolia
It's best to keep cactus/yuccas dry starting Oct 1 and not water again until warmer weather in spring.
That site is the Growing palms in Colorado Springs USDA 5b

I think a few of those Yuccas need bigger pots

DesertZone · Post by **DesertZone** » Thu Nov 05, 2009 9:00 pm

Awesome pics Hernry5

Paul Ont · Post by **Paul Ont** » Fri Nov 06, 2009 6:33 am

Henry,
I'm in zone 4b/5a (USDA) or zone 6a (Canadian) near Kingston, Ontario. If you look at our lows you'll see we hit around -27C last winter (-29 at my place) which compares well with downtown Montreal. Don't forget that the Canadian zone is usually 1 full zone 'warmer' then the zones quoted most often for plants (i.e. Montreal downtown is USDA zone 5a long term, but is zone 5b or 6a Canadian)... USDA zone is the long term (I use 30 year) average winter minimum for a given area. I've made a map that includes Montreal, if you're interested.

Anyway. I am able to grow the following Yucca without protection beyond the snow and fast draining soil:

Yucca glauca- Bullet porrf and can form a short trunk.
Yucca filamentosa (and cultivars)- Can get leaf burn in extreme years.
Yucca elata- Hardiest of the trunkers.
Yucca neomexicana- Hardiest of the Southwestern non-trunkers.
Yucca harrimaniae- Can be damaged in cold/wet years
Yucca baccata- Only selected forms. Not tolerant of cold/wet.
Yucca arkansana- Only 1 year in ground. Seems hardy.
Yucca recurvfolia- Usually top-kills. Hope that it will be hardier with age. Would love to cross it with Y. glauca to make hardier.
Yucca recurvfolia x filata (2 plants left)- Very hardy and quick growing. I hope they form trunks.
Yucca kanabensis (angustissima ssp. kanabensis)- Top killed it's first winter but has come back. Probably not long-term hardy.

Here is the S. Ontario/Quebec zone map for reference. Based on long-term data according to the USDA formula. If I had to change it, I'd probably reduce the Zone 6b in Southwestern Ontario, reduce the 5a just south of the Bruce Pennisula, and reduce the 5a around Montreal.

<img src="http://inlinethumb59.webshots.com/5306/ ... 600Q85.jpg" alt="ontzone1">

Wes North Van · Post by **Wes North Van** » Sat Nov 07, 2009 11:53 am

amazing yuccas. I lost my rostrata and aliofolia last winter but the rest of my yuccas survived. I have numerous recurvs, one elata, numerous non trunking yuccas and one glorisosa

henry5 zone5 · Post by **henry5 zone5** » Sat Nov 07, 2009 6:28 pm

Thanks all , i appreciate every comment and subjection.

Hi paul one more question i just want to known if u are able to suggest a place in south ontario to find some exotic hardy

ex. ( yucca rostrata , elata, cactus , palms , gunnera and more)

thank merci for every thing

Henry

henry5 zone5 · Post by **henry5 zone5** » Sat Nov 07, 2009 6:39 pm

Hi Barb nice pics , i'm happy to read you and i appreciate your gentle answer .

Henry

henry5 zone5 · Post by **henry5 zone5** » Sat Nov 07, 2009 6:52 pm

Aaron i don't know if my pics are awesome but if u like it i'm delighted.

merci a lot

henry

Paul Ont · Post by **Paul Ont** » Sun Nov 08, 2009 4:11 am

henry5 zone5 wrote:Thanks all , i appreciate every comment and subjection.

Hi paul one more question i just want to known if u are able to suggest a place in south ontario to find some exotic hardy

ex. ( yucca rostrata , elata, cactus , palms , gunnera and more)

thank merci for every thing

Henry

Henry,
Finding exotic Yucca species is quite difficult. Come spring, however, the following places 'might' have some Yucca in stock.
Cole's Florists- Grimsby, Ontario.
Rice Road Greenhouses- Throlod, Ontario.

Otherwise, get some seed and hope for the best!

henry5 zone5 · Post by **henry5 zone5** » Sun Nov 08, 2009 9:42 am

Paul a big merci , rice road greenhouse and cole's loocking good i'm very excited for next spring i will be there for sure ,

anyway i love the niagara area and it's always a pleasure to visit this part of Ontario.

thanks again

Henry

lucky1 · Post by **lucky1** » Tue Nov 10, 2009 8:53 pm

Paul, nice work on that zone map.

Come to BC and edit ours please.

Paul Ont · Post by **Paul Ont** » Wed Nov 11, 2009 6:34 am

lucky1 wrote:Paul, nice work on that zone map.

Come to BC and edit ours please.

Barb, There are far too many elevation changes in B.C. to produce an accurate zone map. You can easily determine the USDA zone for an area with a local ariport or weather station though... I'm sure that's what you've done to get your zone 5 classification!

Perhaps if I move to B.C. I'll make a zone map, but, for now, I'm going to leave that alone!

lucky1 · Post by **lucky1** » Wed Nov 11, 2009 7:39 am

We'd welcome another Ontarian in B.C., especially if you bring your yuccas

Airports are always located in flat bottomland, which are frost hollows.
Reported lows are usually way off the mark.
I'm glad personal weather stations are available so we can keep our own site specific records.

Elevation, as you suggest, is key.
And winter winds.

Barb

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mature Yucca pics...W O W !

mature Yucca pics...W O W !

Drool !!

Trunking yuccas...pic from Kew

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