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Neptune Seedless Grape

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Our largest white grape. This variety produces big, juicy grapes with bold flavor. Conical clusters stay together, making for beautiful additions to fruit baskets or centerpieces. Disease-resistant. Resists cracking. Ripens in early September. Self-pollinating. May be covered by U.S.P.P. #12302 or other patents.


Bloom Color White
Fruit Color White
Fruit Size Large
Pollination Self-pollinating
Ripens/Harvest Early September
Shade/Sun Full Sun
Soil Composition Loamy
Soil Moisture Well Drained
Soil pH Level 5.5 - 6.5
Taste Sweet
Texture Firm
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.

Size & Spacing

Mature Size

When your plant matures, it will be approximately 4 - 6' tall x 12" wide.

Recommended Spacing

We recommend spacing these plants 6 - 8' apart to ensure room for growth.

Recommended Pollinators

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.

Shipping Information

Estimated Delivery Date

You don't pay until it ships.

We work hard to make sure that your order arrives at the ideal time for planting in your location. That's why we only ship living products during certain times of the year. Order now and your credit card won't be charged until your climate is suitable for planting success and your order is shipped.

Our Promise of Satisfaction

1 Year Warranty

Every order comes with our promise of satisfaction. If you aren't completely satisfied with your order, let us know within one year for a free one-time replacement or refund.


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Questions & Answers

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Browse 10 questions Browse 10 questions and 26 answers
Why did you choose this?
Stark Bro's Store
Disease resistant, non slip skin, seedless.
DEBBIE M on Feb 21, 2017
Starting a vineyards at business !!!!
Joe W on Jun 6, 2016
Disease resistant, non slip skin, seedless.
DEBBIE M on Feb 21, 2017
Sounds like a good basic grape for northern climes!
Susan R on Jun 12, 2016
Starting a vineyards at business !!!!
Joe W on Jun 6, 2016
I chose the Neptune white seedless grape because I already have a concord grapevine and always wanted a white seedless grapevine.
NOREEN C on Jun 1, 2016
Fat, green, seedless grapes, best snack ever. We have a spot ready for it. Chosen for large fruit size and zone compatibility.
Bright D on May 16, 2016
My father-in-law grew grapes and my son loves grapes so I decided to give it a try at my own home and love seedless grapes myself so we will see, hopefully will have a very hearty crop for future eating pleasure especially for my granddaughter and our family's dining pleasure.
Carrie H on Mar 24, 2016
Sounds like a good basic grape for northern climes!
Susan R on Jun 12, 2016
I chose the Neptune white seedless grape because I already have a concord grapevine and always wanted a white seedless grapevine.
NOREEN C on Jun 1, 2016
which grapes make good raisins?
Cathy S on Feb 19, 2016
BEST ANSWER: In general we can make raisins from most seedlees grape,but Thompson seedlees is one of the best,Fiesta,Muscat of Alexandria,DOVine and Sultanina make good raisins too.

what kind of trellis would work best for the neptune seedless grapes?
Heather on Feb 1, 2017
BEST ANSWER: The Neptune vines grow very fast, spread wide, and have large diameter branches. They need lots of room to grow, and a sturdy trellis to support them. I use 16 foot long cattle panels that are 50 inches tall, connected with 'T' posts. The wire on the panels is close to the thickness of a pencil, so there is plenty of support with no need to beef it up later when the vines grow out of control. I would keep the vines at a MINIMUM of 10 feet apart. Even at that spacing, by year two and beyond you will have to be vigilant to keep them trimmed back. I have 12 varieties of grapes, and the Neptunes by far outgrow the rest. Good luck!
do you get grapes the first year or longer?
sarah s on Sep 21, 2016
BEST ANSWER: We got a small amount the first year, and more this (second) year. Expecting more in the coming year. Good luck!
What size will the vine (Bare Root) be when it arrives at my home?
Dyrles on Jan 29, 2017
BEST ANSWER: Thank you for your question. The age and size information for our bare-root grapes is as follows: 1 year old and 12-18??? tall. Our grapes will typically take 2-3 years after planting to reach maturity and bear fruit.
How's it done without any seeds?
Frank T on Oct 8, 2016
BEST ANSWER: Thank you for your question. The vine is grafted, as are most all of our plants and trees. That ensures that the true parentage of the variety is what you get.
Would you recommend cane or spur pruning for this grape? Thank you D on Oct 3, 2016
BEST ANSWER: Thank you for your question. Because it's an American hybrid, we recommend cane pruning, which help lower disease probability.
What is the yield on one vine?
Davey H on Mar 22, 2016
I planted Neptune vines for their excellent quality ,Nepune productivity is moderate,in large vineyard is about 6 T/acre ,it means about 22 pound per vine,we can increase the productivity if we have only few vines,

I hope ,my answer is correct
Best wishes
Is the Neptune Seedless Grape suitable for planting in tropical countries (like Singapore)? Else, what sweet table grape variety would you recommend? Thanks
Harry on Feb 20, 2016
BEST ANSWER: Thank you for your question. At this time we cannot ship products outside the United States, or to Hawaii. Because of this, we're unable to make a recommendation for your location.

Customer Reviews

4.1 / 5.0
16 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Great vine
These grapes broke dormancy after being in the ground for approximately two weeks. They are growing like weeds. I am very satisfied with this purchase
May 28, 2016
1 year ago
So far, so good.
So far, so good. They look healthy and have tiny clusters of grapes. I wasn't sure when I saw my complete order come bare root. Didn't look like much but everything without exception has taken off and is doing great.
May 23, 2016
1 year ago
Doing great so far!
I've had these grapes for almost a year and they seem to be doing great! Lots of growth, can't wait to see if they produce this year!
May 12, 2016
1 year ago
very pleased
year two brings aggressive growth and many clusters I cant wait to try later this summer.
May 28, 2016
Quick growth
Received vines quickly. Vines took right off and started up poles. Would definitely buy again.
May 18, 2016
1 year ago
I'm excited but my plants are still too young to fruit. I am hoping for a crop this year. Thanks, JTuttle
February 3, 2017
1 year ago
Progressive growth despite hard winter.
Successful growth with hopefully a hardy variety is difficult during the past two
growing seasons. Two previous attempts with different varieties were unsuccessful having been winter killed. This variety, the Neptune seedless,has done very well, especially this spring. Growing conditions for grapes in our area have been excellent and I expect good results for growth.
May 11, 2016
over 2 years ago
Plants doing OK in 2nd Yr
Growing well, those that died were from critters (rabbits and deer). Went thrugh winter well here, zone 4.5, arid and irrigation.
August 17, 2016
over 2 years ago
Neptune seedless
Good flavor very concord in taste skin is thick they well a local farmer market.
August 19, 2016
over 2 years ago
el grapeo
so far two made it tru winter.mabe my great grand kids will enjoy grapes.i dont know how long it takes for grapes.
May 8, 2016
over 2 years ago
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