En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Berms to hold water around roots

Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Search Smarty Plants
    
 
See a list of all Smarty Plants questions
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.
 
rate this answer
Not Yet Rated

Friday - December 05, 2008

From: Austin, TX
Region: Southwest
Topic: Compost and Mulch, Watering, Herbs/Forbs
Title: Berms to hold water around roots
Answered by: Barbara Medford

QUESTION:

I planted new flower beds this November. There are currently dirt 'berms' around each plant - creating a well for water to seep into the immediate plant area. How can I keep these berms from eroding and breaking? In the past I have recreated them but with watering or rain they quickly disappear.

ANSWER:

Actually, we think the dirt has been trying to tell you something you need to know. Our suggestion is that you get a rake and pop right out there and smooth those berms out. What you have been trying to do is create water standing on the roots of your plants by making a little pond. Plants that do well in Austin are NOT water plants. They are hardy, drought resistant plants that can grow in rocky, alkaline soil. Water standing on those roots will quickly cause the roots to rot, and severely damage or destroy the plant you have been trying to coddle.

We understand your intent, and it is a good one, of assuring water to the roots. The best way to do this is to improve the drainage in the soil around the plant. If you have a very sandy soil, sometimes it can drain too much, but that's not what we have here in Austin. More likely, you have a clay soil, unless you put some amendments, like compost, into the soil when you planted. So, after you have removed the little dams, stick a hose down in the dirt in your flower bed, and let it drip slowly until water appears on the surface. If you're testing the whole bed, this could take a while. If the water continues to stand on the surface for more than a half an hour or so, you need to improve the drainage. The best way to do this, as we said earlier, is to incorporate compost or other organic material into the soil before planting. However, it can be done now by gradually working amendments into the soil, and then mulching with a shredded tree bark mulch. This mulch will help moisture stay in the soil, without it standing on the roots, and will slowly decompose to augment the materials already in the soil. It also will help in keeping the ground warm, or cool, as the case may be, and assists a little in keeping weeds down. When the rains come again, those berms wouldn't last 5 minutes, and the water would still end up standing on the roots, or draining away into the street much too quickly. Let the dirt do the job, that's what it was designed for.

 

 

 

More Compost and Mulch Questions

Transplanting adventitious shoots of a mountain laurel in San Antonio
August 20, 2009 - Is it possible to transplant branches (shoots) growing from a mountain laurel that was chopped down? Some are two years old and several feet tall (but not yet blooming) and some as small as a foot. ...
view the full question and answer

Esperanza failing to bloom in Odessa TX
September 01, 2009 - I have 3 Esperanza plants that have not bloomed this spring/summer. I live in Odessa, TX. We had about 5 inches of rain in July in one week (very unusual), but they have not bloomed-before or after. ...
view the full question and answer

Severely cutback sloping soil in Dripping Springs TX
May 09, 2010 - We have 5.5 acres off Henly Loop just north of Hwy 290 about 10 miles west of Dripping Springs, TX. The former property owners carved out soil from a sloping area to get soil for the driveway. Doing ...
view the full question and answer

Ground cover under trees from Austin
November 03, 2012 - I need ground cover plants that can tolerate leaf litter and grow under oak tree shade.
view the full question and answer

Spreading compost from Kyle TX
January 22, 2012 - I'm trying to find if there is some type of "implement" to help spread compost in my yard that is easier than a shovel and rake. Any ideas?
view the full question and answer

Smarty Plants's Facebook profile 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.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP
© 2014 Lady Bird Johnson Wildflower Center