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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.


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.


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 15 questions Browse 15 questions and 49 answers
Why did you choose this?
Stark Bro's Store
I was hungry !!! Probably should not shop when I am hungry ????
Eric B on Sep 2, 2019
the size of the grape and taste
DAREN F on May 10, 2019
I was hungry !!! Probably should not shop when I am hungry ????
Eric B on Sep 2, 2019
beautiful grapes,I hope my plant also gives me similar fruit.
syed j on Aug 31, 2019
the size of the grape and taste
DAREN F on May 10, 2019
Our favorites for fresh eating from the grocery store are green and these said, "juicy, highly flavorful grapes."
JESSICA K on May 8, 2019
The size and color of the grape sold me.
JAKE M on May 6, 2019
How pretty is this?
CALLIE G on May 5, 2019
Recommend by the Ohio State University Extension Service for cultivation in Ohio
Marvin R on Apr 2, 2019
I want to try to grow seedless grapes
Lynda G on Mar 7, 2019
Friend already grows them
Elvin C on Feb 19, 2019
kris c on Feb 12, 2019
love the taste of these grapes
TIM B on Jan 26, 2019
It had good reviews and was readily available.
Larry M on Sep 25, 2018
Love green grapes, and after viewing other nurseries and their grapes I felt you offered the best vine at the best price!
Larry C on Apr 29, 2018
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
beautiful grapes,I hope my plant also gives me similar fruit.
syed j on Aug 31, 2019
Our favorites for fresh eating from the grocery store are green and these said, "juicy, highly flavorful grapes."
JESSICA K on May 8, 2019
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!
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
what other grape needs to be planted with Neptune?
kathleen m on Mar 11, 2019
BEST ANSWER: They are self pollinating so you shouldn???t have too use any other kind. I planted two plants but both died because of my soil. Too much clay.
I am a total newbie. I want to try growing some grapes, i have a 5ft high chain link fence that i was hoping to plant them up against. Could i use that as the basis for an initial trellis and then add additional support as needed? if so how and what would you suggest i add or how. Money is a factor. Thank you.
Troy D on Oct 3, 2017
BEST ANSWER: We are new to grapes as well, but we learned a lot the hard way. I don't recommend a chain link fence, as once even a young grape vine gets hold, it will not let go. A 2-foot vine latched onto some temporary fencing, and it was easier to cut the fence down with heavy wire cutters than try to cut the strong-as-iron grape tendrils!

Your permanent trellis must be seriously heavy and strong, or your vine will ultimately destroy it. We designed and built our own really simple pergola with 4x4 cedar posts and cedar 2x4s for the top. Super-solid, and cedar lasts for the decades your vine will be there. You could initially get away with a flimsy pole for the first year, but it would definitely have to be replaced by something strong by the next season or so.
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 would be the pollinator for the Neptune grape vine?
Brandy M on Mar 18, 2019
BEST ANSWER: Neptune is self-pollinating, but for more/larger fruit, another seedless variety like Gratitude would be an excellent production booster.
Can concord seedless and Neptune seedless be planted close together?
Larry M on Jul 14, 2018
BEST ANSWER: Yes, but they do spread and you don't need many to keep you in a good supply
How many plants for a 4' x 8' raised bed?
Rae P on Aug 1, 2017
BEST ANSWER: That is a rather small bed for multiple grape vines, but if you're willing to stay on top of pruning them, it should work. While this is a little closer than what we normally recommend (which is 6-8' apart), you could probably get away with planting either two Neptunes (or a Neptune and another seedless variety for more/bigger clusters on both vines) about 5' apart (1-1/2' from the end of each long side).
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.
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

4.3 / 5.0
42 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
over 3 years 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
over 4 years ago
I planted them as soon as I got them. This year they did not come back, so I have to start over.
May 18, 2017
over 3 years ago
the plant was very spindly and never did much of anything as compared to my other vines. would not purchase another one again.
May 17, 2017
over 4 years ago
didn't survive
this is the only plant we have gotten from Stark's that didn't survive
June 15, 2017
over 4 years ago
Neptune Seedless Grape
This grapevine died early last summer. It never thrived.
May 7, 2016
over 5 years 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
over 4 years ago
getting better
Every year they come back better and better. I made 1 gallon worth of preserves the first year and they are twice as thick this year. Great taste also
May 10, 2017
over 4 years 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
over 4 years ago