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

Wednesday - August 11, 2010

From: San Antonio, TX
Region: Southwest
Topic: Non-Natives
Title: Leaves on non-native Chinese pistashe tree yellowing in San Antonio TX
Answered by: Barbara Medford

QUESTION:

My chinese pistashe tree leaves are turning yellow. The tree is about 25 years old. the last time it did this I applied some iron granules into the ground around it. However I have forgotten how much to apply and how far apart.

ANSWER:

Pistacia chinensis, Chinese pistache, is native to central and western China. It is considered invasive in Texas, see this Texas Invasives.org website on Pistacia chinensis. The Lady Bird Johnson Wildflower Center recommends only plants native to North America and to the area in which those plants are being grown. 

The yellowing leaves are a sign of chlorosis, which means that overwatering or poor drainage may be making trace elements in the soil unavailable to the plant's leaves. If you have had success with iron granules in the past, we suggest you go back to the nursery, purchase some more and follow the directions on the package.

 

More Non-Natives Questions

Brown, dry leaves on weeping willow tree
May 01, 2008 - We live in central TX and have just planted a weeping willow tree. Our back yard has a retention pond and ravine that parallels our property and we were told that the weeping willow will do perfectly ...
view the full question and answer

Pruning of frost-damaged non-native Sago Palms in Marble Falls TX
April 18, 2010 - I have several large Sago Palms that have partial frost damage, they are part green and part brown fronds. Should I remove the brown leaves? the center of the leaf is green.
view the full question and answer

Reseeding a dead lawn in Wimberley TX
February 07, 2012 - Our new house had a sodded lawn that now appears dead. There remains a layer of sandy soil as a part of the sodding process. Is there a way to reseed these existing slabs of sod and what process wo...
view the full question and answer

Non-native genista racemosa from Leander TX
March 28, 2012 - Hello, Mr. Smarty Plants. I fear I've made a horrible purchase at a local plant place. Bought a "broom" plant--it's not listed in your database. Latin name: genista racemosa, according to tag. ...
view the full question and answer

Problems with non-native windmill palm in Eden NY
May 29, 2009 - I have a potted windmill palm, about two weeks after being potted the leaves are turning yellow with brown spots on them. what have I done wrong?
view the full question and answer

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