Heat Wave Damage

[The Gerg]

We are in the midst of a heat wave for our area. Last weekend was the worst. About 100-110 degrees F. in my city depending where you were. Well it burned the crap out of my poor B. hapala. I just recently decapitated an adjacent Syagrus romanzoffiana which was providing shade for it. It was getting a little burn damage while adjusting to not having that protection any longer and then we got this over the top heat wave (for us) and it fried it. It has one good leaf left.

[UK_Palms]

The damage looks fairly superficial and it should recover. The main spear on it looks green still. Just keep it well watered and it will put out new fronds in no time in your climate. It looks like things will start cooling down considerably by the weekend now for you guys. 110F+ is crazy hot though, especially in September!

I lost a bunch of my Juania seedlings here during the July heatwave. I accidentally left some in a shaded part of my patio near the house, where it still reached 107F. Almost instant death for Juania. The official Met Office highs in London were 104-105F with an overnight low of 75-80F, depending on location. My Juania seedlings got smoked! Only 1 out of 5 has recovered, but that one still looks bad.

[Palmiz]

My small hapala didn't like it either, even in partial sun.  Hopefully the heat will let up soon. I think they will survive but look ugly for awhile. 

[Johnny Palmseed]

7 hours ago, SeanK said:

Imagine all the brownouts in California when all cars go electric.

LOL that’s pretty off topic but I literally was just saying this to a friend. He told me about the mandate and that was essentially my response. The funny thing is that electric cars are promoted as “green” energy. Do some research on battery production and you might question that tag.

[Navarro]

Y esa es la burretiokentia más resistente al sol ... 

[James B]

I have a Rhopalostylis Chatham Island that is just about dead. All the leaves burnt to a crisp. Didn’t have any major sun damage last summer but last summer was an exceptionally mild summer for us with maybe only 5 days over 100. This past two weeks has been 14 days straight of 102-107. The Cheesemanii next to it gets a little bit more shade and is ok.

I have 3-3 gal triple A.Maxima I picked up to prep for my next garden. But one is already about completely brown.

I just got in a floridbunda order of 3 Clinostigma, 4 Chambeyronia. So ok they look ok but we will see.

All of my large Archontophoenix are unfazed except a triple Cunninghamiana that has always struggled in its sunny spot.

Royal Palms are loving it. So is the Cocos that’s in full blazing all day sun. Opened its 4th leaf since April.

[James B]

The newest 3 fronds have no sun damage. Surface temps stay around 130 from 10-5. You can cook an egg on the DG soil it is planted in. At this point convinced there is no level of heat Cocos Nucifera can’t handle. 

[James B]

As for the Rhopalostylis: the Chatham Island is on the left and is extra crispy. The Cheesemanii is on the right and has a crispy leaf closest to the camera but as you can the newest leaf has stayed green.

Underneath the Chatham Island looks green but who knows.

[The Gerg]

35 minutes ago, James B said:

As for the Rhopalostylis: the Chatham Island is on the left and is extra crispy. The Cheesemanii is on the right and has a crispy leaf closest to the camera but as you can the newest leaf has stayed green.

Underneath the Chatham Island looks green but who knows.

Ouch! Well good luck. I’m pretty sure my heat damaged palms will all survive but it’s going to take some time to get a nice looking crown again.

[cbmnz]

Where that Chatham palm comes form, the all time highest temperature ever recorded is 29.6C / 85F so guess it's not too much of a surprise does not handle those temperatures very well 🙂
https://niwa.co.nz/sites/niwa.co.nz/files/Chathams_Climate.pdf
Mine handled 34C this past summer just fine, but that was only for a few hours on one day, and with a cool off at night.

[Billeb]

3 hours ago, James B said:

As for the Rhopalostylis: the Chatham Island is on the left and is extra crispy. The Cheesemanii is on the right and has a crispy leaf closest to the camera but as you can the newest leaf has stayed green.

Underneath the Chatham Island looks green but who knows.

If you can stand the look….give it some time. I learned these are super strong trees. Had a spear pull on my Oceana and thought it was a goner. Came back after about 6 months. At the end of Sept I’m going to update that thread as it’s been 1yr. 

 

-dale 

[Tyrone]

6 hours ago, James B said:

As for the Rhopalostylis: the Chatham Island is on the left and is extra crispy. The Cheesemanii is on the right and has a crispy leaf closest to the camera but as you can the newest leaf has stayed green.

Underneath the Chatham Island looks green but who knows.

Keep the water up to them and give them a good soaking. They'll likely recover fine. I bet by the end of next spring they'll be bounding along. 

[Rob123]

Most of my Burretiokentia’s have some pretty bad burning. Kog being the worst of the five species that I’ve got followed by Hapala. 
 

Surprisingly all of my other New Cals in the ground have been doing well with very little burning thankfully. 
 

Its been a strange few weeks of weather here In San Diego with the weirdest still to come because of Hurricane Kay.

I’m just stoked that a few of my palms that I was worried about that are in half day, full sun have unexpectedly fared well thus far (Pinanga Coronatas, Dypsis Lastelliana, and my smaller Kentiopsis species. Fingers crossed there’s no low humidity Santa Anas this fall!

[BayAndroid]

Hit 112 at my house in the SF Bay Area.. absolutely brutal for my young garden. I was outside every hour spraying down my chicken coop and free range.. felt bad for them. Also the feeling that you can't use much water because of the drought. Things are getting pretty dire here. 

[quaman58]

I'm less than 2 miles from the coast and the results are mixed. The monsoon type weather is going on 2 months now, longer than ever, at least in my lifetime. So with the nights not really cooling down, the overall growth this year is just spectacular. The flip side is that palms who do appreciate cooler nights have taken a bit of a beating. Howeas don't especially love this, nor Burretiokentia. I also have a Pritchardia remota that hates intense sun, which is surprising to me. As mentioned above, at least there' some humidity in the air which helps. Unlike the later season, Godforsaken Santa Anas..

[njpalmguy]

it’s supposed to 94F in my area with temps feeling like it’s 100F. thank god I’m keeping my new windmill inside 😭

[James B]

5 hours ago, njpalmguy said:

it’s supposed to 94F in my area with temps feeling like it’s 100F. thank god I’m keeping my new windmill inside 😭

Are you going to plant it?

I don’t have experience with Trachycarpus in East Coast humid heat but mine saw almost 110 in my old garden with low humidity with zero issues.

[Johnny Palmseed]

20 hours ago, njpalmguy said:

it’s supposed to 94F in my area with temps feeling like it’s 100F. thank god I’m keeping my new windmill inside 😭

The temperature shouldn’t be a problem if you don’t put it in direct sun. Are you intending to keep this as a houseplant?

[happypalms]

Ouch that hurts all you can do in the heat is water preferably first thing in the morning to help create more humidity.

[flplantguy]

Does anyone use the fertilizers made for heat tolerance assistance and do they work?  I ordered some to try, ive used it before but messed it up (dont EVER mix fertilizers unless you know the chemistry, i made silicon precipitate out, but it could be dangerous). I wonder if it can help with this type of event.

[njpalmguy]

On 6/23/2024 at 3:35 PM, James B said:

Are you going to plant it?

I don’t have experience with Trachycarpus in East Coast humid heat but mine saw almost 110 in my old garden with low humidity with zero issues.

yep. just did yesterday. now today it’s supposed to be 97 with a low of 72. at night it’s still going to be 75-80. definitely not much cooloff. I do know it is a younger specimen though (obviously). this might be a stupid question, but will it be more heat tolerant? (it sounds stupid ik 😭)

[James B]

The younger the palm the more tender it is. But this is one of the toughest palms out there. 

[PalmsInBaltimore]

On 7/16/2024 at 8:39 AM, njpalmguy said:

yep. just did yesterday. now today it’s supposed to be 97 with a low of 72. at night it’s still going to be 75-80. definitely not much cooloff. I do know it is a younger specimen though (obviously). this might be a stupid question, but will it be more heat tolerant? (it sounds stupid ik 😭)

at least we on the East Coast are finally getting a break in this heatwave with cooler temps this weekend and next week

[njpalmguy]

2 hours ago, PalmsInBaltimore said:

at least we on the East Coast are finally getting a break in this heatwave with cooler temps this weekend and next week

yeah. should be an easy ride. I even have a spear coming up that didn’t come up for the 2-3 weeks that I had the palm in the pot for. expecting it to be a new frond by Monday