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

Locating yellow crossvine
April 20, 2006 - I am attempting to find a yellow crossvine. I am not having much luck. I thought I saw some growing in the Taylor area, but I cannot locate it now. In my memory, the flowers had brown dots on them.
view the full question and answer

Identification of vine with translucent red berries in Tennessee.
November 30, 2007 - During the month of November I have seem in Nashville, TN a vine which appears to be native or a handed-down plant growing behind a restaurant site on a chain link fence. It was loaded with cluster...
view the full question and answer

Fast growing, evergreen vine for deck
May 14, 2008 - Hi, I hope you might help me select the most appropriate flowering vine for my situation. I am looking for a fast growing, mostly evergreen, and long blooming flowering vine for a large container (pro...
view the full question and answer

Orange-red caterpillar with black spikes on passionflower vine
September 19, 2009 - What kind of orange-red caterpillar with black spikes is all over my passion vine?
view the full question and answer

Vine for pergola in Kilgore, Texas
January 21, 2009 - Have recently constructed a 10'X 20' free standing pergola with a 14' X 24' treated wood deck surround. The support posts are inset 14" from the outside edge. I want to grow greenery on the per...
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