Rent Shop Volunteer Join

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

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

Monday - July 12, 2010

From: Fredericksburg, TX
Region: Select Region
Topic: Compost and Mulch, Diseases and Disorders, Shrubs
Title: Death of mature Eve's necklace in Fredericksburg, TX
Answered by: Barbara Medford

QUESTION:

A friend mentioned his mature Eve's necklace had died this year. The next day I walked past my own mature Eve's necklace(about 5 years old)and it was dead! What could have happened? Thanks.

ANSWER:

This falls in the category of "what's the matter with my dead plant?" It could have been anything from misdirected herbicide intended for lawn weeds to bad drainage to old age. It is very likely that the unexpected low temperatures we had in Central Texas last winter could be the culprit. All we can do is tell you what conditions the plant flourishes under and say that, if it wasn't freeze damage, whatever you did wrong, next time don't do it. 

Styphnolobium affine (Eve's necklacepod) has a light requirement of part shade. We consider sun to be 6 or more hours of sun a day, part shade to be 2 to 6 hours of sun per day, and shade to be less than 2 hours of sun per day, so both plants could have been under- or over-exposed to sunlight.  Please note that this plant must have good drainage to survive. It's a good idea to prepare the hole in advance, working in some compost, leaf mould or other organic material to contribute to good drainage. If good drainage is not provided, the plant will typically get chlorotic, leaves turning pale green, and fail to thrive, or even to survive. It is a perennial, deciduous plant, growing from 12 to 36 feet in height. It should be grown alone; if there are larger plants nearby, it will become spindly. 

From our Native Plant Image Gallery:


Styphnolobium affine

Styphnolobium affine

Styphnolobium affine

Styphnolobium affine

 

 

More Diseases and Disorders Questions

Fungus Spots on Native Bush Honeysuckle
December 03, 2010 - My native bush honeysuckle plants that I have along my back fence have leaves that are turning yellow with spots. It appears to be a type of fungus, but not powdery mildew. Any suggestions as to what ...
view the full question and answer

Mexican Lime Turning Yellow
March 25, 2015 - What causes moderate yellowing of 40% of the leaves of an 8 year old Mexican Lime Tree that is booming and blooming right now with lots of thick new growth? I used a general garden fertilizer a few ...
view the full question and answer

Texas Redbud Suddenly Died in NM
November 06, 2014 - We had a Texas redbud, approximately 5 1/2 years old. It had been doing great then all of a sudden after it bloomed this spring, the leaves appeared but then shriveled right away. We noticed the trunk...
view the full question and answer

Western soapberry dropping leaves in San Antonio
June 03, 2013 - My Western Soapberry tree (China berry?) Suddenly started dropping full, perfectly healthy green, leaf units. Now half the tree is turning yellow. There is a second tree in the yard not far from this ...
view the full question and answer

What to do about powdery mildew on Pavonia lasiopetala?
June 02, 2009 - My Pavonia lasiopetala seems to have gotten mildew this spring. I was hoping that warm weather would get rid of it. Instead it has spread to most of the plants which are located in widely separated b...
view the full question and answer

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