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

Plants that smell like chocolate from Coral Gables FL
July 12, 2012 - I am looking for plants that smell like chocolate. I live in south Florida. We are currently growing and testing Berlandiera lyrata. Do you know of other plants whose flowers smell like chocolate?
view the full question and answer

I need an evergreen vine to hide an ugly fence.
February 24, 2009 - I am looking to find a vine that will be on my south facing fence. I would like it to be evergreen as to hide my ugly fence.
view the full question and answer

Evergreen vine for New York
May 27, 2008 - I live on long island. I live on a corner piece of property and we have a 4 foot picket fence. We have some deciduous bushes planted along the fence, but would like a little more privacy because we ...
view the full question and answer

Control of invasive vine in North Carolina
November 18, 2009 - Hi, I live in Piedmont NC, have vines that twine around my shrubbery and are impossible to pull out of the ground w/o breaking because they are so thin/delicate. The leaves are maple-like (3 lobes), ...
view the full question and answer

Plants to cover rock wall in Pennsylvania
July 10, 2008 - Please recommend plants that I could use to plant on the (full sun) slightly sloped ground space above a 3 foot high, 20 foot long unattractive stone wall that would grow over and down to cover the wa...
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
© 2014 Lady Bird Johnson Wildflower Center