En EspaŅol

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
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
Not Yet Rated

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

Identification of vine with gourd-like fruit
June 30, 2010 - We live on a farm, and I have noticed a vine that has leaves like grapes, but produces this flower, and a fruit that is rather large, shaped like a gourd, right now green in color. It is growing over ...
view the full question and answer

Deer Resistant Vine for California
July 24, 2013 - What can I plant to cover a retaining wall in Redwood City, CA that will grow down on it (no dirt below) that deer will not eat? I have just about given up. I have tried jasmine and Gelsemium and regu...
view the full question and answer

Eliminating a briar vine in American holly
July 22, 2011 - I have a wild vine (I was told it is a type of briar) living on my place. The root nest is like a potato. I have dug them up, I have sprayed them and I still am plagued with them. I have a beautiful A...
view the full question and answer

Climbing Vine for Illinois That is Non-Toxic to Dogs
May 31, 2013 - I am looking for a climbing vine hardy in Illinois (zone 5) that it non-toxic to dogs. Can you help?
view the full question and answer

Plant identification of vine with hard brown bulb-shaped fruit
January 19, 2011 - I was given a brown hard bulb-looking ball with rough tiny dots on it and told it comes from a vine that changes to beautiful colors and these balls hang off the vine. A lady in Houston grows them a...
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.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP | STAFF
© 2015 Lady Bird Johnson Wildflower Center