13 replies to this topic

[Jim in Los Altos]

My Very Slow Growing T. radiata in the ground from a one gallon three years ago and barely half a foot tall did well in this freeze with some minor spotting. Minimum was 26.5F with several upper 20s nights as well.

[Jimbean]

Mine did two hours of 26F, under a canopy of sabals.  It was in its juvenile stage.  No damage!

[spockvr6]

This palm was in a 7 gallon pot and planted out in January 2007.  There was some slow to appear cold damage to one leaf in particular.  

The "official" air temperature on my weather station (at about 4-5 ft above ground ) was 34F.  But, due to the still air, I measured 29F at ground level.  

This palm was in the open and not exposed to frost.   Another T. radiata which has been in the ground since Feb 2006 was not damaged in the least.  This damaged palm was also shade grown (and thus planted out in full sun).  So, I suspect that this palm was a little weak from the recent planting and this contributed to the damage at a relatively high temperature.

[ruskinPalms]

Went below 32F at 330am, went back above 32F by 830am. 5 total hours of freezing temperatures. Ultimate low of 29.7F with 7.6 "freezing degree hours" calculated as discussed in the weather forum. Moderate winds varying from NNW to NNE all night, dewpoints in low teens, no frost. No overhead canopy in my yard. No protection provided. Photos from 1 day after the freeze event.

No damage from this event. Is in the middle of a dense planting.




No damage still at 4 days after freeze.

[spockvr6]

All of mine (which range from 4-6 ft OA) were undamaged from 35.0F, 33.5F, 35.8F in 1/2009. No frost on leaves.

[jayfro6]

I'm glad to hear these are making appearances in Cali. They are such cute little palms. I accidently left my potted seedlings out in a brief 30 degree freeze but they were already pissed off from being in north FL, so I think they just hated me a little bit more. They recovered and I let them retire to Pompano Beach. My theory is they need hot sun in the winter.

[Davidl]

These are a 9b palm until the frost hits them from my experience.

[tikitiki]

I have a small plant about 1ft tall. It was exposed to two nights at 32 and one at 34. The last two with frost. No damage at all.

[JeffreyApolloBeach]

I have 2. The one under a Delonix Regia has no visible damage (no frost formed on it). The one on the open had some frost on it, it shows some damage, but the Dypsis lutescens next to it shows a lot more damage (both palms are about 2 1/2 feet overall).

[sur4z]

I have two...the taller one on the south side of my house got burned but the smaller one on the north side did fine...go figure.

[gsytch]

My one Thrinax has showed burning in the past week. It is under 4 large Queens, so I thought it would be a perfect place. Only the newest leaf looks good. It is 5 ft tall and 3 years planted. Again, 4 nights below freezing but that one last night was below 32F in the back yard for about 10+ hours with solid ice in buckets...Greg

[Dave-Vero]

Mine is about 5' and is part of a palm thicket, with some canopy overhead. It's unfazed, no frost, temperature as low as 28 (early in the evening, whole night close to freezing, then 29 at dawn).

[bubba]

Here are two T. radiata's, photographed 2 weeks after cold. You can see yellow at the bottom of the top:

[basilios]

Mine grows in a pot, almost 3' tall, went through a very tough and persistently cold winter with severeal weeks in a row with temperatures steadily below 53F and many days where daytime highs never passed 46F, but NO freezing, the lowest night temperature monitored at around 34F, finally was completely defoliated, but its spear appears to be OK. In previous winters, when we had similar lowest temps for a couple of nights but a much warmer overall average, it didn't have any problem. So it needs some warm weather every now and then to keep going or else it enters the danger zone, even without a true freeze event.