Good morning I'm new here and have several questions regarding my palm trees. I'm having a difficult time figuring out what to do for my Mediteranian Palms. I've been checking to make sure the soil is dry before I water with a moisture meter.  It is extremely hot here always triple digits 100 - 120 at times. The palms were planted in May. I tried to up load photos and it didn't work.  I have black spots on a couple leaves and it looks like my leaves are burning from the sun. I'd love to hear from you, thank you.

WELCOME, to Palm Talk.  This was the first species that I tried germinating from seeds and had success in Jan. 2010.  95% of mine are still in 5 gallon containers in full sun.  All of my containers have adequate holes to allow the water to drain.  I am 45 miles north of Los Angeles and 45 miles inland from Ventura, so I am getting some of the same temperatures.  I find that these guys are happier with daily watering.  Where I have killed some of these are having them placed up against the block walls where the 115 deg. F ambient becomes 137 deg. F from the retained heat along with black plastic container cooking the roots.  The Med. Fans that I have planted in the ground, I have the soil level from the container slightly higher than garden soil level and create a "moat" at the outer frond drip line to encourage the roots to move outward.  You might have gotten a little transplant shock being a May planting.

Welcome to Palmtalk !  

It's hard to know if a watering routine is penetrating the entire root zone, especially on newer plantings. Despite being drought tolerant, Chamaerops humilis do appreciate routine summer watering in the early morning or evening.

Yes,that is sunburn. This may sound dumb,but you should actually cover the trees with a screen or piece of shade cloth until October to help get them established. Each tree should be getting at least 5 gallons of water applied slowly,every other day until October. They will be established then,for next year's extreme sun and heat.

 

aztropic

Mesa, Arizona 

I’m not familiar with the oven-like heat you’ve got there, but here, it’s regular-hot and can be quite wet at times.   This guy gets a lot of water from wet-season rains, and irrigation, and me watering stuff around it.  It doesn’t seem to be effected negatively.  

Around here you don’t see many Chamaerops humilis, and they seem to be medium fast, but tall and skinny, and not as nice looking as the ones out west.  Still, I think they are great little palms.  Tough suckers.  

I got this guy as a 3g last year.  Was exhibiting heavy clumping amongst his peers.  Is becoming a nice little bush, and not bothered by our wet periods. 
 

I'd water it alot in the hot weather unless your soil had really bad drainage.