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.

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

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.

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

&imgrefurl= http://hometown.aol.com/fitzroya/kachina.html&h=680&w=1023&sz=219&hl=en&start=110&tbnid=NT7i6I3nhBjfKM:&tbnh=100&tbnw=150&prev=/images%3Fq%3Dyucca%2Belata%26start%3D100%26gbv%3D2%26ndsp%3D20%26hl%3Den%26sa%3D N"> http://hometown.aol.com/fitzroya/images/yucca%2520forest.jp g" target="_blank">http://hometown.aol.com/fitzroya/images/yucca%2520forest.jp g"/> &imgrefurl= http://hometown.aol.com/fitzroya/kachina.html&h=680&w=1023&sz=219&hl=en&start=110&tbnid=NT7i6I3nhBjfKM:&tbnh=100&tbnw=150&prev=/images%3Fq%3Dyucca%2Belata%26start%3D100%26gbv%3D2%26ndsp%3D20%26hl%3Den%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.

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.

Look at this from the UK.

&imgrefurl= http://www.easytropicals.com/pcp/Yucca_and_Agave.html&h=149&w=112&sz=17&hl=en&start=57&tbnid=XJYef6cJSa-tTM:&tbnh=95&tbnw=71&prev=/images%3Fq%3Dtrunking%2Byucca%26start%3D40%26gbv%3D2%26ndsp%3D20%26hl%3Den%26sa%3D N"> http://www.easytropicals.com/images/YUcca%2520rostrata_tn.jp g" target="_blank">http://www.easytropicals.com/images/YUcca%2520rostrata_tn.jp g"/> &imgrefurl= http://www.easytropicals.com/pcp/Yucca_and_Agave.html&h=149&w=112&sz=17&hl=en&start=57&tbnid=XJYef6cJSa-tTM:&tbnh=95&tbnw=71&prev=/images%3Fq%3Dtrunking%2Byucca%26start%3D40%26gbv%3D2%26ndsp%3D20%26hl%3Den%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

More beauties.

photo from "eveshamexotics" site.

Barb

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.

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

Get out your drool catcher...

Pic by steve.gb.com
Barb

WOW! those are awesome! Made my heart skip a beat. 😀 I want some. 😡

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

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

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