Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.
Need help with plant identification, visit the plant identification page.
From: McAllen, TX
Region: Southwest
Topic: Watering, Trees
Title: Watering live oak trees from McAllen TX
Answered by: Barbara Medford
This is a question we frequently address; we will link you to some previous Mr. Smarty Plants questions on this subject, and then sum up on our opinion.
Katy, Texas - Note this paragraph:
"To water, especially in the very hot weather we are experiencing right now, push your hose deep into the (hopefully) soft soil around the roots and let it slowly drip until water comes to the surface. Unless you are getting frequent rains, do this twice a week. We don't recommend watering trees by the use of sprinkler systems."
Our take on all this is that one popup sprinkler isn't going to make it. You use the sprinklers out on the perimeter of the tree dripline to get to the roots extended out there. We don't like sprays of water hitting the bark anyway; it can invite fungus and disease. The video from the Drought Resource Center (above) is extremely useful in telling you what the tree needs.
Shy blooming non-native Crape Myrtle, in Littlestown Pennsylvania
July 25, 2011 - My Crape myrtle has been planted about three years, and reached a height of about 4'. It blooms late July and for the past two years, has only had one or two blooms on it. I have a lot of buds whic...
view the full question and answer
Cedar trees dying in CO
July 18, 2011 - We have mature cedar trees at the home we bought in SW Colorado. The large ones have begun to die. Can too much water kill a cedar tree and is there anything I can do to keep them alive?
view the full question and answer
Transplanting a Texas redbud sapling
July 27, 2008 - I've just discovered a Texas red bud sapling (baby tree)that decided to grow next to our fire pit. Although there's no reason for us to sit around the campfire in 100 degree weather, I would like to...
view the full question and answer
Patio plants suffering from heat in Austin
August 22, 2010 - My patio plants are burning up from the intense sun of Austin's August. Last year it even burned the leaves. Besides moving 40 plants to a shadier spot do you have suggestions on how to protect the...
view the full question and answer
Decline ot Heartleaf rosemallow from Austin
March 26, 2012 - My tulipan del monte -a new small plant from the wildflower center--did great all winter and was forming a new flower bud, just died in a matter of a few days. It looks like it "dried up", no visib...
view the full question and answer
![]() |
Support the Wildflower Center by Donating Online or Becoming a Member today. Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends. |