En Español

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

Saturday - June 23, 2012

From: Marietta, GA
Region: Southeast
Topic: Herbs/Forbs
Title: Hybrid Impatiens leaves yellowing from Marietta GA
Answered by: Barbara Medford

QUESTION:

My impatiens looked great when I went out of town, I had recently fertilized. The person left to water them fertilized them. Now they are yellow and dwarfed. Anything I can do?

ANSWER:

We were willing to bet that impatiens were non-native to North America, because we see them marketed vigorously and in heavily hybridized forms. However, it turns out that the family Balsaminaceae (Touch-Me-Not) includes three species native to North America, and all three are native to Georgia.

Impatiens capensis (Jewelweed)

Impatiens noli-tangere (Western touch-me-not)

Impatiens pallida (Pale touch-me-not)

The information we got from the webpages above was that they needed shade (2 hours or less of sun a day) and wet soil.

Now these are probably not what you have in your garden, but rather the hybridized plants, but we will use the information we have in our database to try to help you figure out what happened. Of course, if you saw these natives in your garden, you would probably pull them out as weeds, and we can't know what effects the hybridizing of the plants had on their water and sun needs. Try reading this article from Gardening Know-How Caring for Impatiens, and figure out what you were doing or not doing that caused the yellowing leaves. Our first top-of-the head thought is too much fertilizer and not enough water, but again, maybe the hybrids have different needs.

 

From the Image Gallery


Jewelweed
Impatiens capensis

Western touch-me-not
Impatiens noli-tangere

Pale touch-me-not
Impatiens pallida

More Herbs/Forbs Questions

Dietes bicolor(Bicolor Iris) winter-hardiness in Austin
February 09, 2010 - I have many bi-color irises (dietes bicolor), the freeze in Austin turned them brown. Can I trim them back without harming the plants? If trimming is acceptable, can you give me tips?
view the full question and answer

Invasiveness of Cosmos from Decatur GA
April 26, 2013 - I have been searching for an answer concerning the invasive plant Cosmos. I know that Florida declares this but I have not been able to find out does Georgia? And specifically,is it only the yellow Co...
view the full question and answer

Native plants for under a pine tree in Vevay IN
June 29, 2009 - At our office we have a very nice garden however, in the front we have a large pine tree. We cannot get anything to take root & live there. Do you have any suggestions for a native shrub or perennia...
view the full question and answer

Low growing, flowering evergreen plants for Pflugerville TX
March 30, 2010 - I am wondering if you can suggest some low growing, flowering evergreen plants for my garden.
view the full question and answer

Invasive native blackeyed susans from Warren OH
August 07, 2013 - In our demo garden we master gardeners in NE Ohio have been unable to get rid of black-eyed susans which have, like the other person, prevented or "killed" the other perennial plants. They are spre...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | JOBS | SITEMAP | STAFF INTRANET
© 2016 Lady Bird Johnson Wildflower Center