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
1 rating

Sunday - May 09, 2010

From: Taylor, TX
Region: Southwest
Topic: Diseases and Disorders
Title: Problems with winecups in Taylor, TX
Answered by: Barbara Medford

QUESTION:

I live in Taylor in Williamson County, Tx,. I have wine cups growing. They are lush and blooming, but I am now noticing what looks like spores forming under the leaves and the plants seem to be suffering from it. Do you know what this could be? Baking soda mix with liquid soap a possible remedy? This is their 2nd year in the garden. Rock on with all the help you provide gardeners!

ANSWER:

There are 4 plants native to Central Texas with "winecup" as one of their common names. Since you mention this is the second year for your plants, we are going to say it is the perennial Callirhoe involucrata (purple poppymallow). We are puzzled by the presence of the spots, but our webpage on this plant mentions that it is susceptible to rust during wet seasons, which we are not having right now in Central Texas but have done earlier in the year. We also noted that it must be in well-drained soil. Since it is somewhat a trailing plant, we think the moisture of the soil might be the first suspect, causing rust or perhaps a little mildew. We have also heard complaints about the numbers of snails and slugs that are around this year, also because of the moisture, but that doesn't sound like slug damage. As long as your plants appear healthy and are blooming, we wouldn't worry too much. Avoid over-watering and try to improve the air circulation around your plants, perhaps with some shredded hardwood mulch beneath the plants to get them off the soil.

From our Native Plant Image Gallery: 

 

 

 

More Diseases and Disorders Questions

Transplant shock in Dakota mock vervain
July 23, 2007 - We just planted some Verbena bipinnatifida in our back yard and when we planted it, it had purple flowers on it but now they've all dried up. We live in central Colorado and thought this plant was fa...
view the full question and answer

Small oak tree with powdery mildew in San Antonio, TX.
May 09, 2012 - I have a small oak tree with powdery mildew. Is there anything I can do about? Will it kill the tree?
view the full question and answer

Pruning mature cedar elm trees in San Antonio
September 14, 2008 - When is the right time to prune my several mature cedar elm trees? I'm in San Antonio, and they have never been trimmed in the 55 years we have lived in this home. I have several that are at least 7...
view the full question and answer

Failure to thrive of Lantanas
August 06, 2008 - Here at work we have 4 beautiful yellow Santanas(should I say had), the leaves have started to turn brown and no longer blooming. Appears to have a fungus or disease. Please help!
view the full question and answer

Oak bark problems from Stillwater OK
May 14, 2012 - In my clients large oak tree there is bark stripped from the limbs in small pieces. No piece is larger than 1 inch by 1 inch and occurs on limbs high in the canopy. It does not look like squirrel doin...
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.