En EspaŅol

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?

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
    
 
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
1 rating

Wednesday - April 10, 2013

From: San Antonio, TX
Region: Southwest
Topic: Diseases and Disorders, Pests, Cacti and Succulents
Title: Century plant leaves falling over from San Antonio
Answered by: Barbara Medford

QUESTION:

Have a large century plant about % feet tall. The leaves are falling over. Can you tell me what to do to avoid this.

ANSWER:

Since we don't know what "% feet"means, we hope you accidentally hit the shift key and meant to say "5 feet." There are 10 plants in our Native Plant Database with the common name "Century Plant;" of these, all are members of the Agavaceae (Agave) genus. Of those, 7 are native to Texas, but none are as tall as 5 ft., so maybe you really meant "% ft." You may, of course, have an agave which is non-native to North America that is taller, but since 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 that plant is being grown; in your case, Bexar County, the natives are all we have information on.

Anyway, since we don't know specifically which agave you have, we will choose Agave parryi ssp. parryi (Century plant) for an example. Now to figure out what is making the leaves droopy. First. we must ask you a rhetorical question. ("Rhetorical" means you don't have to answer it) Has your Century Plant recently bloomed? If so, the agave is dying. The agave takes about 8 to 40 years (not a century) to bloom and then, having done so, has exhausted all its energy blooming and begins dying. The plant will nearly always have "pups" which can be transplanted before the mother plant completely passes away.

Beyond that, we are at something of a loss, but we found several websites which should be able to help you. Often problems with desert plants like this involve too much water, not enough sun or poor drainage, causing the roots to stand in water and rot. Read these sites and see if you can find a cure for your plant.

Arizona Cooperative Extension: Problems and Pests of Agave, Aloe, Cactus and Yucca

Growing on the Edge Droopy Agave Leaves

eHow: How to save a dying Agave plant

 

From the Image Gallery


Century plant
Agave parryi ssp. parryi

Century plant
Agave parryi ssp. parryi

Century plant
Agave parryi ssp. parryi

More Pests Questions

Bare spot in Prairie Phlox in Austin
February 25, 2009 - I have Prairie Phlox in my garden that I have had for about 4 to 6 years. I got the original plant from the NPSOT at their booth one year at the Wildflower center. It is really lovely in the spring wh...
view the full question and answer

Growing Giant Pumpkins in Georgia
April 15, 2013 - I have tried to grow giant pumpkins in the Atlanta, GA area. Each year I lose several strong plants to vine borers. I have tried tin foil wrapped around the stems, and I even painted the stems with Se...
view the full question and answer

Problems with non-native parsley from Brooklyn NY
June 17, 2012 - Had beautiful flat leaf parsley plants recently turn yellow & die. Found black armadillo like bugs bored throughout the roots. Now they're spreading. How do I kill them without contaminating the pla...
view the full question and answer

Do Deer Eat Orchid Trees?
March 08, 2013 - I have planted three anacacho orchid trees, however we have a lot of deer around us. Is this a tree they will want to eat? Do you have any ideas to keep deer away?
view the full question and answer

White sticky stuff on muscadine grape vines from Chappells SC
August 17, 2013 - Muscadine vine has white sticky substance on leaves and vines, what is it?
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