Would you consider Rhopalostylis "cold hardy"?

[EastOahuPalmNut]

As far as I know, the Rhopalostylis species are the most extreme Latitude native palm trees: 43 South (are any Palms native near 43 North?? I don't think so)?

But as you know, latitude doesn't equal temperature (as each 1000' of elevation makes a 3.5f/2c difference)

I tried sprouting some Rhopalostylis in Honolulu (both sapida and baueri).  Currently the baueri seem fine,  and although the R.sapida seeds sprouted, they eventually died ( I guess they can't handle 28c)

Is anyone successfully growing them in "cold" locations (where the overnight temperature goes below 0c)?

 

 

 

 

[Foxpalms]

7 hours ago, EastOahuPalmNut said:

As far as I know, the Rhopalostylis species are the most extreme Latitude native palm trees: 43 South (are any Palms native near 43 North?? I don't think so)?

But as you know, latitude doesn't equal temperature (as each 1000' of elevation makes a 3.5f/2c difference)

I tried sprouting some Rhopalostylis in Honolulu (both sapida and baueri).  Currently the baueri seem fine,  and although the R.sapida seeds sprouted, they eventually died ( I guess they can't handle 28c)

Is anyone successfully growing them in "cold" locations (where the overnight temperature goes below 0c)?

 

 

 

 

Yes under canopy and they are fine here at 51n. It depends on what the low is. It doesn't go below 0c very often mostly just cool winters. I don't think they like warm nights either  which has been a problem this year. I wouldn't call them cold hardy but they have some cold tolerance, 24f is probably the lowest they could handle with severe damage. 

Edited August 16, 2022 by Foxpalms