Host an Event Volunteer Join Tickets

Your gift keeps resources like this database thriving!

Q. Who is Mr. Smarty Plants?

A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.

Help us grow by giving to the Plant Database Fund or by becoming a member

Did you know you can access the Native Plant Information Network with your web-enabled smartphone?

Ask Mr. Smarty Plants

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

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Need help with plant identification, visit the plant identification page.

 
rate this answer
Not Yet Rated

Saturday - March 24, 2012

From: San Marcos, TX
Region: Southwest
Topic: Non-Natives, Watering
Title: Watering a vegetable garden in San Marcos TX
Answered by: Barbara Medford

QUESTION:

Can you give me a general idea how long to run my drip irrigation on my raised vegetable garden? Currently I use it twice daily for one hour. The soil feels slightly moist but not very damp. Should I irrigate longer or is that wasting water from my well? Last year I had to double up during the hot summer.

ANSWER:

This is out of our range of expertise, in that the Lady Bird Johnson Wildflower Center is committed to the growth, propagation and protection of plants native not only to North America but to the area in which those plants grow naturally. Most, if not all, vegetables are not only non-native to North America, but have been so heavily hybridized over the years that there is really no way of identifying the resultant plant. This doesn't mean we are opposed to vegetables (well, some of us are) but just means we don't know much about growing them.

However, we should be able to point you to resources that do know about vegetables, and help you find the information you need. From Colorado State University Extension here is an article on Irrigating the Vegetable Garden. Another closer-to-home resource is the Texas Agrilife Extension Office for Hays County. There is contact information and an index of subject matter on that webpage that should lead you to answers to your question.

 

More Watering Questions

Why did mountain laurel turn brown and die?
July 20, 2011 - I have (had) a lovely mountain laurel that I planted more than 25 years ago. Many times one or two branches would turn brown and I would trim them out. The shrub is about 10 feet tall and is many tr...
view the full question and answer

Dry browning leaves on Monterrey Oak from San Antonio
August 08, 2013 - I have a Monterey Oak that was planted four years ago and was doing great until the last two weeks. It has turned brown and the ends of the branches are very dry and brittle. The root flare was cov...
view the full question and answer

It's so hot, even the Salvia greggii are sad, in Bulverde Texas
July 28, 2011 - I have several Salvia greggii in large terra cotta pots. The leaves have developed a yellowish tint and are thinning. What is the best process to get them back to full green foilage?
view the full question and answer

Shriveling agave from Miami Florida
August 23, 2013 - Dear Mr. Smarty Plants, Most upset - My beautiful agave (wish I could have submitted an image) has stared to misbehave. The once first liquid filled leaves, are starting to look more like the skin ...
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

Support the Wildflower Center by Donating Online or Becoming a Member today.