Christmas / Pigmy Palm winter Greenhouse ideal humidity/temp

[Cjohnstone]

I have a 8x12 greenhouse that has 6 Pigmy Palms and 3 Christmas palms (8 ft tall). What is the ideal temp and humidity?

Right now I have the minimum temp set to 60 and it gets up to 70-90 in the day.

humidity is 80%-90% currently at night and 60%-70% during the day. Do I need a dehumidifier or can they tolerate humidity that high?

I have some led grow lights in addition to indirect sunlight as well as a couple fans that run 24/7.

What is ideal?

Thank you, 

[SeanK]

Likely the Pigmies are the most humidity living of the genus. The Adonidias like humidity to be sure. So long as the sunlight is indirect or reduced you should be fine. I don't think the artificial lighting is necessary unless you get less than 10 hours daily.

[Adam_NY]

I think those will be fine as you have them. Adonidias will need heat and humidity to not decline over the winter. Pygmies can take much more extreme conditions. I have one that I have kept over the winter for years in a greenhouse where it gets down into the 40s at night. And often not much warmer during the day if it’s cloudy (no supplemental light). It goes dormant over the winter. 

[Las Palmas Norte]

On 12/9/2024 at 5:33 PM, Adam_NY said:

...Pygmies can take much more extreme conditions. I have one that I have kept over the winter for years in a greenhouse where it gets down into the 40s at night. ...

Similar here with P. roebelenii. Greatly reduced watering for sure during the cool winter storage phase.

[NC_Palms]

My greenhouse is set to 70F minimum. And it often gets into the 80F - 90F range with the sun hitting it and the somewhat warm winter temperatures here. Ive noticed my tropical palms do better in the winter in this controlled environment than in the summer. I do have a dwarf date but I have no experience with adonidias. But with this method I have been able to grow coconuts pretty easily at 35N, North Carolina