Native Plants
![](../_images/smarty_plants.gif)
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.
Did you know you can access the Native Plant Information Network with your web-enabled smartphone?
Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.
![](../_images/mr_smarty_plants_logo_web_200w.jpg)
rate this answer
![](../_images/star_00.gif)
Tuesday - May 31, 2011
From: sonora, CA
Region: California
Topic: Vines
Title: No Grapes on Vines in Sonora, CA
Answered by: Mike Tomme
QUESTION:
We have lived in our home since 2002 and have a grapevine that grows beautiful green lush leaves and vines every year but never has produced grapes. What can I do to get some grapes on this vine?ANSWER:
You don't mention whether your grape is a native (wild) grape or a domesticated variety. Most natives of the genus Vitus are dioecious meaning the staminate (male) flowers and pistillate (female) flowers are borne on different plants. So, it is entirely possible that your plant is a male, which would explain the lack of grapes. Alternatively, your plant may be a female, but there aren't any males close enough by to provide the necessary fertilization.
A publication from the Universtiy of Wisconsin Extension Service says it is possible to determine if a grape plant is a male by closely examining the flowers and noting the abscence of the stigma, style and ovary. Here is a publication from the University of Illinois Extension service that has drawings showing the parts of a flower: Flower Parts.
During the thousands of years that people have been cultivating grapes, many of our domestic varieties have been selectively bred to have both male and female flowers on the same plant. This increases vineyard efficiency by eliminating all those unproductive males.
More Vines Questions
Vine for Shady California Apartment Patio
October 01, 2015 - I have a smallish gazebo on my apartment patio. I'm looking for a delicate looking flowering vine to grow in shade in Southern California. Perennial would be wonderful but this is probably too much ...
view the full question and answer
Ivy a suitable ground cover in Live Oaks from Gulfport MS
April 17, 2014 - Will Ivy be a safe and suitable ground cover for old growth Live Oak trees in coastal Mississippi?
view the full question and answer
Identification of a vine with thorns and blue berries.
April 22, 2008 - > Hello,
> We have acreage in Butler County, PA. I recently discovered a vine that I can't identify. It's has many small spines all over the stem, then very large and stiff thorns. It has dark gr...
view the full question and answer
Vines for fence in Gatesville, Texas
July 26, 2010 - Dear Mr Smarty Plants,
My wife and I are looking for a nice vine or Ivy for our chain link fence to add a little privacy. We have 4 dogs that bark at anything that moves. We live in Gatesville Tex...
view the full question and answer
Allergic reaction from vine in St. George Island, FL
July 24, 2010 - In the panhandle of Florida, we have a vine that looks like a blackberry vine. Seems to be poisonous. It has thorns that are dark purple and leaves a blistery, itchy rash. The leaves are green and ruf...
view the full question and answer
Support the Wildflower Center by Donating Online or Becoming a Member today. |