Explore Plants

Share

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
    
 

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

Wednesday - March 16, 2011

From: Lockhart, TX
Region: Southwest
Topic: Cacti and Succulents
Title: Blue agave with freeze damage in Lockhart TX
Answered by: Barbara Medford

QUESTION:

I recently planted a blue agave plant, and 4 days after I planted it the temperature dropped to 20 degrees at night. The plants are still alive but 75% of the outer limbs turned brown. What do I do with it now?

ANSWER:

Agave tequilana, Blue Agave, is native to Jalisco, Mexico, the world capital of Tequila, which is distilled from the agave. The Lady Bird Johnson Wildflower Center is dedicated to the growth, protection and propagation of plants native not only to North America but to the area in which those plants are being grown. It is hardy from USDA Hardiness Zones 9b to 11, and likes high altitudes. Since it is not native, we do not have it in our Native Plant Database, but have found some information on it for you.

From a previous Mr. Smarty Plants answer, here is an answer about an agave having freeze damage, although not the Blue Agave:

"What to do?  If you want to try to salvage the plant, carefully remove  the dead material so that healthy tissue can regenerate. Usually the first stage is the formation of callus tissue which will give rise to new tissue. Your plant may be too far gone, but with a little patience, you could possibly revive it."

From the Succulent Plant Page website, we extracted this information.

"Agave tequilana  F.A.C. Weber 1902
is perhaps the most important Agave for it is from the emerging flower spike of this plant that Tequila is made. It originates from the state of Tequila in Mexico, where selected clones are grown commercially. This species may be seen bedded out as a large specimen plant in warm climates.
 
The bluish leaves have finely toothed margins. The inflorescence of this specimen was taller than the Princess of Wales Conservatory at RBG Kew."

The major problem is that Lockhart is in USDA Hardiness Zone 8b, as is most of Central Texas, which means that agave might freeze again. Perhaps it will come back, but we would recommend not planting another one in that spot. If you are determined to have an agave, Agave americana (American century plant) is the only native agave hardy to this area.

Pictures of Blue Agave from Google

 

From the Image Gallery


American century plant
Agave americana

American century plant
Agave americana

American century plant
Agave americana

More Cacti and Succulents Questions

Monocarpic plants for Indiana
October 06, 2005 - We were in Hawaii this summer and became acquainted with the Silversword. This plant (according to what we were told) blooms only once in it's lifetime (of 50-70 years). Are you aware of any other pl...
view the full question and answer

Worms in non-native snake plant from Hillsborough NC
September 17, 2011 - I purchased a snake plant this summer for my screened in porch. I did not repot it and left it in the plastic pot in came it. I was about to repot the plant to bring it in and noticed there are worm...
view the full question and answer

Worms found in Agave used in tequila
February 06, 2008 - Hi, I am a writer and have been trying to find some referenced information regarding the moth larvae/'worms' associated with Agave and some mezcal beverages - specifically, Hypopta agavis, Aegiale ...
view the full question and answer

Lesions on Agave Leaves in Spring Branch, Texas
January 14, 2011 - I have a giant Agave americana that was beautiful until recently. Several of the leaves have lesions, some of them quite drastic, on the last third of the leaf. What is causing this?
view the full question and answer

Damage to yucca in San Marcos TX
October 18, 2010 - Dear Mr. Smarty Plants, thank you for helping me with my buffalo grass is San Marcos TX back in the spring, my lawn is gorgeous thanks to you! I really need your help as someone sabotaged my beauti...
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.