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Glenora Seedless Grape

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This Concord-type variety is hardy to -15º F and offers growers in lower-temperature zone 5 climates a great opportunity to enjoy their own grapes. Vines yield huge clusters of juicy, medium to large grapes with deep, blue-black color. Seedless. Ripens in mid August. Self-pollinating. A licensed variety of Cornell University.

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Bloom Color White
Fruit Color Blue
Fruit Size Medium - Large
Pollination Self-Pollinating
Ripens/Harvest Mid August
Shade/Sun Full Sun
Soil Composition Loamy
Soil Moisture Well Drained
Soil pH Level 5.5 - 6.5
Taste Sweet
Texture Soft, Very Juicy
Years to Bear 2 - 4
Zone Range 5 - 8

Zone Compatibility

This Variety's Zone Range 5 - 8
My Hardiness Zone ?
The USDA hardiness zones offer a guide to varieties that will grow well in certain climates. Each zone corresponds to the minimum winter temperatures experienced in a given area. Make sure that your hardiness zone lies within the zone compatability range of this variety before ordering.


This variety is self pollinating.

In many cases, you may still want to plant pollinating partners to increase the size of your crops, but with self-pollinating varieties doing so is optional. You'll get fruit with only one plant!

Tools & Supplies

Having the proper tools and supplies when growing your own can make the difference between a good harvest and a great harvest! Here's a list that our experts recommend for this variety.

Planting & Care

Learn all about how to grow grape vines in The Growing Guide. An entire section of our website dedicated to your growing success.


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Questions & Answers

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Browse 7 questions Browse 7 questions and 19 answers
Why did you choose this?
Stark Bro's Store
I already have a seedless concord vine, I think this one will mix in beautifully!
Berrie C on Mar 19, 2019
Friends grow these and we love them. They have a kindof blackberry flavor and make the best jam.
Julie B on Mar 10, 2017
I already have a seedless concord vine, I think this one will mix in beautifully!
Berrie C on Mar 19, 2019
Because I wanted to try them.
PETER B on Feb 1, 2019
Friends grow these and we love them. They have a kindof blackberry flavor and make the best jam.
Julie B on Mar 10, 2017
Sub zero tollerance and a concord variety
Aaron S on Jan 26, 2017
Early to Mid season. Tastes like blueberries.
James on Mar 21, 2016
Experience with this grape
Ken F on Mar 17, 2016
Because I wanted to try them.
PETER B on Feb 1, 2019
Sub zero tollerance and a concord variety
Aaron S on Jan 26, 2017
Can you eat the leaves of the Glenora grape plant?
Kim B on Jul 5, 2017
Is this a slip skin grape?
Paulina S on Mar 29, 2019
BEST ANSWER: Paulina, this is a slip skin grape. I am very impressed with mine as it took right off and I had grapes earlier than expected! Easily separates for pies and wine making. Very rich and deep flavor!! I hope this helps!

Does it make good juice? Not wine.
Leslie C on May 24, 2018
BEST ANSWER: Yes, great juice.
I have 15 vines of the black Glendora grapes that are 5 years old now and this year had more grapes then we could handle so I decided to make wine with the extra any ideas on how to settle down the bitter taste?
Roger T on Jan 29, 2017
BEST ANSWER: I too have several Glenora vines. It is unlikely you can smooth out the profile of your table grape wine, since wine needs grapes that have more developed sugars and are overall much more ripe than table grapes generally offer.
Is the Glenora grape a good option for a trellis - would get full sun for 6 hours +in zone 5. what is the full scientific name of the vine(genus, specie, cultivar?
Ksquare on Apr 18, 2016
BEST ANSWER: All grapes, including Glenora, should be trellised to keep them manageable and so their their fruit is up off the ground. Glenora originated as a cross between these grapes: Ontario x Russian Seedless. It is Vitis labrusca 'Glenora'

Customer Reviews

3.8 / 5.0
6 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
doing very well
I can't believe how much this grape has grown since being planted just last year. There are already grapes growing on the vines. They haven't grown enough to eat yet, which is the real test, but they look strong and healthy so I have great hopes!
May 13, 2016
over 5 years ago
Glenora & Flame Seedless Grapes
Last year I purchased the Glenora & Flame seedless grapes. The Flame took a while to leaf out, but soon caught up with the Glenora. This year I cut them both back to a central stalk with only a few buds. This Spring, the Flame has out grown the Glenora. I'm following the instructions to develop a good root system before producing grapes. I should have grapes next year. The plants a very healthy & I'm pleased.
May 16, 2016
over 5 years ago
Beautiful Vines
We purchased this grape variety about 2 years ago. So far, it has produced very nice vines but no fruit. Maybe this will be the year that fruit appears. I realize that it takes time to bear fruit since it was little more than a stick when we received it.
May 14, 2016
over 6 years ago
Blooms in second year
Planted last year and it blooms this year! Love it!
May 15, 2018
over 4 years ago
Obviously Hardy!
We just planted one last year, and proceeded to go through a hot drought. We were not real good about watering on a regular schedule and it had me worried, but this spring it is really growing strong. We have not had good luck with any variety of seedless in the past, growing right in the same line with seeded varieties that always produce bumper crops, so hopefully these will produce as well as they are now growing. Can't give it the fifth start until we see production.
May 8, 2017
over 4 years ago
Mine not good
After waiting many years for fruit, I got some last year. They were very small with seeds. The only good thing that I can say is that the birds still liked them. I ripped it out this spring and replaced it with another variety. Now, I will have to wait a lot longer. I have another one that is also multiple years old that hasn't produced fruit yet. Very disappointed!
This year, we had a 27 degree night on the 9th of May and several frosty nights around that same time. Supposedly I'm in Zone 6 (East central Indiana), but frosts in May are not uncommon. This year all of my grape vines had leaves that were killed by the freeze and frosts. I'm not sure that Stark's hardiness / Zone information is accurate.
June 3, 2020
over 3 years ago