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
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

Sources for plants from Abingdon MD
August 02, 2012 - What stores or nursuries in Harford County sell already grown Coral honeysuckle, Purple passion flower, trumpet creeper, and crossvine?
view the full question and answer

Native plants for hanging baskets in Abilene
June 10, 2008 - I live in the DRY West Texas heat in Abilene. I'd like to put some hanging plants along my back fence. Preferably something that would attract butterflies. We have a pool in our back yard and almost ...
view the full question and answer

Low Ground Cover for Steep, Shaded PA Site
February 17, 2014 - I am located in Downingtown, PA, right on the border between Zone 6 and 7. Please provide a recommendation of a native ground cover for the following conditions: steep slope (greater than 45%), full s...
view the full question and answer

Poison ivy? vine in NJ
July 30, 2012 - I have a vine growing among some vegetation in my backyard. It has a leaf with 3 "points" with ridges along its edges. The smaller leaves are reddish which is why I thought poison ivy but definite...
view the full question and answer

Vine in New Braunfels for Baytown, TX
July 25, 2009 - I have seen a vine in New Braunfels that looks nothing like the trumpet vine or trumpet creeper; however, the flower is almost identical. The flower is more pink though, and the leaves look more like...
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.