As most of you I have many locations of small growing Yuccas. The first I got was Yucca nana, Mill Creek area. Utah. Sown 2001. I have been growing them outside until two years ago when I moved and potted them up.
The off spring turned out very different. Here is 3 examples.

This ones slowly forming a small trunk and is 11 years old. It started this year with forming new rosettes which could have more potential.


This ones with more potential, it handled the move fine and could flower in 2 years time.


This one did flower two years ago. Unfortunately something went wrong but I did manage to transfer some pollen to an odd flaccida I had in a greenhouse.





Later on I had to move the big plant. It turned out to have more than 40cm of stem undergrown. I had to cut it in two pieces as it was too big for a pot. The top turned into 3:


The undergrown stem have so far produced 8 new rosettes. It will be a nice cushion one day:)

nice Yuccas Martin. What's your secret growing them? Y. nana, harrimaniae and angustissima don't like my climate at all. They slowly die over several years. I'm not sure why.

What is your soil pH?

What is the texture of your soil.....sandy, silty, clay.....?

Tim, try copy a czech crevice garden and treat nana and allies as tender alpines that likes the perfect drainage.

Martin

Hi Martin,

I have 'great' drainage. My cactus/yucca garden is a sand/peastone mix. I'm not sure why they don't like my climate. Perhaps it's too hot/humid in summer??

Here's a few photos of my sad looking harrimaniae and angustissimas which are still alive. Most are dead. These have been in the garden since 2004.





Y. neomexiana


Y. angustissima v toftiae