Best cold hardy palms that grow in clumps...

[CascadiaPalms]

Hi Palm Family 🌴😃

Hope everyone had a wonderful Thanksgiving.  Just curious what everyone's experience is with this category best cold hardy palms that grow in clumps... 

I recently just learned about Acoelorrhaphe wrightii (Everglades Palm) -- which then made me go on Google and begin my research.

I thought I would turn to you guys....what's the best you have grown?  Cold hardy?  Speed of growth?  Are there maybe some palms that naturally don't grow in clumps but actually do well when you force the issue?

[Chester B]

Define Cold Hardy, it means different things to different people.

That's a small list for me - Needle Palm, Chamaerops and Serenoa.  That's it.  

[CascadiaPalms]

12 minutes ago, Chester B said:

Define Cold Hardy, it means different things to different people.

That's a small list for me - Needle Palm, Chamaerops and Serenoa.  That's it.  

Good point.

I would say maximum 9a

(20 F to 25 F, -6.7 C to -3.9 C)

 

[idontknowhatnametuse]

Arenga engleri

[Fusca]

Chamaedorea microspadix, Phoenix dactylifera, Phoenix theophrasti, Phoenix reclinata and Nannorrhops richiana (from Afghanistan) are some other good clumping palms for 9a (cold hardy) although none are particularly fast.

[jwitt]

Med for me.  Survived -10f and zero the following winter.  Leaf hardy in my yard to 10f, damage beginning below that.  

And I don't need to water. A big plus in a climate of 8" annual precip. 

Hardy for sure.