Zone push winners happypalms thread

[happypalms]

Trying to push the cold tolerance to another level with my mesocarpa it has survived two winters in a protected hothouse so far not sure if it will ever be planted out might be one that lives in the hothouse permanently time will tell any information about cold tolerance of this palm is greatly appreciated 2 degrees Celsius temperatures a lot of palms from Vanuatu and New Caledonia do well in my area I even have a tag saying cold protect just so I don’t forget the two older leaves that are not looking good are from tropical growth prior to my purchase the fresh one is subtropical growth I have noticed the tropical grown purchased palms almost sulk until they get new subtropical leaves even in the summer season not just the cold some palms sulk no matter what when you plant them out tropical or subtropical they just need to get acclimated 

[WagnerMX]

Did you germinate these yourself? How?

[happypalms]

3 hours ago, WagnerMX said:

Did you germinate these yourself? How?

No I purchased them, but would be pretty easy to germinate bottom heating 30 degrees celcius, coco coir  perlite mix! 

[peachy]

My meso is just in the shade house and looks better than yours in the heated place.  Henryana look crappier in winter here and have to be bought early in summer to acclimatise but they do live.

Peachy

[happypalms]

On 12/10/2025 at 3:27 PM, peachy said:

My meso is just in the shade house and looks better than yours in the heated place.  Henryana look crappier in winter here and have to be bought early in summer to acclimatise but they do live.

Peachy

Well you got one meso that’s in better condition than mine, as John Cleese would say it’s dead! 
Cold picked it off season by season until it no longer existed!

Richard 

[happypalms]

A few seedlings of a different ptychosperma species, somewhat cool tolerant and an easy growing palm, another great one for that mild Mediterranean climate perhaps, taking temperatures down to 2 degrees Celsius. 
I don’t have any in the ground yet but would think by the amount of only just a few loses in the seedlings in this batch is a good indicator of tolerance!  
Another zone push winner. And i think I might appease the gods and make this a thread and therefore document cold tolerance in palms! A handy little thread for all intrested in cold tolerance of new varieties! This should appease the palm gods! 

[Harry’s Palms]

Great idea , information for those of us in more temperate areas. Harry

[happypalms]

On 12/13/2025 at 3:09 AM, Harry’s Palms said:

Great idea , information for those of us in more temperate areas. Harry

It’s a great way to document all the different varieties that will live and the complete failures, and if it helps with the decision of what palm to try then that’s a bonus. Cold my be a very obvious reason why some palms die in winter, but Ive also had the same variety of palms where only a few died from a certain batch of seedlings, a journal certainly will give a lot of ideas in zone pushing for growers to trial. My winter temps will obviously be a good judge for others to work with. 
While all zones will also have different variations depending on microclimate, so not exact science proven data but a good place to start. 
Richard