An early season blueberry with rave reviews! This vigorous Northern-Southern cross produces a heavy crop of sweet, juicy, berries early in the blueberry season — and, in mild areas, a lighter second crop develops later that same year. Yields up to 15 pounds per plant. Developed in 1999, introduced in 2010. Cold-hardy. First crop ripens in late May to early June. Second crop ripens in August. Self-pollinating.

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Since 1816, Stark Bro’s has promised to provide customers with the very best fruit trees and plants. It’s just that simple. If your trees or plants do not survive, please let us know within one year of delivery. We will issue a one-time merchandise credit to your account equaling 125% of the original product purchase price. Read more about our warranty policy.


Bloom Color White
Fruit Color Blue
Fruit Size Large
Pollination Self-Pollinating
Ripens/Harvest First Crop Late May Or Early June, Second Crop August
Shade/Sun Partial Shade - Full Sun
Soil Composition Loamy
Soil Moisture Well Drained
Soil pH Level 4.5 - 5.5
Taste Sweet, Juicy
Texture Firm
Years to Bear 2 - 3
Zone Range 4 - 8

Zone Compatibility

This Variety's Zone Range 4 - 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 5 - 6' tall x 3 - 4' wide.

Recommended Spacing

We recommend spacing these plants 4 - 5' 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 blueberry plants in The Growing Guide. An entire section of our website dedicated to your growing success.

Shipping Information

Arrives when it's time to plant

Your success is our priority. We work hard to make sure that your order arrives at the ideal time for planting in your location based on your local climate conditions.


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Questions & Answers

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Browse 16 questions Browse 16 questions and 76 answers
Why did you choose this?
Stark Bro's Store
Granddaughter loves blueberries
Debra S on May 15, 2021
adding to current blueberry plants
leonard b on May 9, 2021
Granddaughter loves blueberries
Debra S on May 15, 2021
Zone 4
Christine N on May 10, 2021
adding to current blueberry plants
leonard b on May 9, 2021
Can bear fruit 2x
Katherine R on May 5, 2021
We chose this blueberry plant because it produces twice per season.
Tina M on May 2, 2021
MARIAN W on Apr 27, 2021
Wanted to see if I can finally get a variety of blueberry that actually grows in a Northern climate!
John K B on Apr 23, 2021
large berries and in zone 4
Tsandi C on Apr 19, 2021
Early and a repeat blueberry!
Katherine R on Apr 9, 2021
ripening date
Lawrence S on Apr 8, 2021
Stars I review
Peggy R on Mar 30, 2021
I am not familiar with this variety so I wanted to plant one with my other varieties for pollination even though they are listed as a self-pollinated plant. Berries are supposed to be large and that is what I prefer.
Donna J P on Mar 26, 2021
Bill T on Mar 10, 2021
Blueberry are the best
Christine L M on Feb 19, 2021
I created a new planting area just for blueberries.
Christine C on Feb 16, 2021
2 crops a year
Jay on Feb 3, 2021
looking forward to this variety!
Mike L on Jan 27, 2021
wanted a starter blueberry
Tim M on Jan 22, 2021
They seem to be what I wanted
Jackie on Dec 6, 2020
Love them
WAYNE E on Nov 30, 2020
Suggested for my growing region. Stark Brother has good stock and it works well for me.
Warren R on Oct 25, 2020
Recommended variety.
Albert K on Oct 20, 2020
Merrill H on Sep 28, 2020
Ripening time, fruit quality
Ashley on Sep 25, 2020
description by stork brothers
James T on Sep 19, 2020
A good plump blueberry to go as a pollinating plant with the NorthBlue blueberry.
Dana R on Jul 31, 2020
Firm and sweet
Virginia M on Jul 29, 2020
Taste and harvest time
Robert S on Jul 27, 2020
Matt H on Jul 17, 2020
A new variety for our patch, self-pollinating.
Lynn R on Jul 3, 2020
The size and description of the berries
Linda S on Jun 26, 2020
Recommend for my zone hardiness
Danielle M on May 5, 2020
Shirley F on May 4, 2020
does well in my zone
Richard R on May 3, 2020
Same as # 1
Keith M on Apr 19, 2020
Extended crop
Yvonne S on Apr 9, 2020
1st time gardening
Sandra A C on Apr 1, 2020
Availability and appropriate choice for my zone compatibility
Tim H on Mar 31, 2020
The great reviews given for it on the Stark Bros website!
Mary on Mar 31, 2020
large early
Wilson A on Mar 31, 2020
early grow
anna p on Mar 30, 2020
For extra pollination... I got in two chandeliers this week
Kay P on Mar 29, 2020
Highly rated and needed a pollinator for another blueberry plant
Susan W on Mar 28, 2020
I wanted two crops of blueberries so I paired this early variety with a summer variety.
Dana E on Mar 28, 2020
Because it can be grown in pots and only have my balcony available for growing.
Meagan N on Mar 27, 2020
The description says the berries ripen in late-May to early June. We live in an area where invasive insects destroy blueberries, but the caterpillars emerge in July. By selecting these varieties, we hope to harvest the fruit before the arrival of the pests.
Mary V on Mar 21, 2020
It looks good
Raquel R on Mar 11, 2020
For the 2 crop yields
Ashley K on Mar 9, 2020
Sweetheart Blue berries were out of stock last summer, when I planted my raised blue berry bed. I was dismayed. They sounded so wonderful. I have been buying from Stark Bros for years. I have had great success with most of there trees and plants. I am sure these will be great also. Their customer service is wonderful!
Larry H on Feb 22, 2020
Have this at another property. It grows and produces well.
Deborah M on Jan 22, 2020
Zone 4
Christine N on May 10, 2021
Can bear fruit 2x
Katherine R on May 5, 2021
What size plant do you send?
Trina M on Apr 1, 2019
BEST ANSWER: Thank you for your question. The age and size information for our blueberries is as follows: 4??? pot: 6-12 months old and 4??? tall; Small gallon container: 2 years old and 12??? tall. Our blueberries will typically take 2-3 years after planting to reach maturity and bear fruit.
what color does the foliage turn to in the fall?
Debbie P on Jun 26, 2016
BEST ANSWER: all the blueberry bush leaves turn red if they are hit with a cold snap as mine are starting red this spring because of cold weather.
how old are the plants being purchased?
Daniel S on Feb 7, 2020
BEST ANSWER: We appreciate you reaching out to us. Our blueberries are approx. 1 year old when shipped.

If you have any further questions please don't hesitate to reach back out to us. Have a great day!
Do these berries have thorns?
Pnuts on Jul 22, 2018
BEST ANSWER: No. You might be thinking of blackberries or raspberries.
Is this plant sprayed with any chemicals or pesticides?
Tamara C on Jul 30, 2020
BEST ANSWER: I have not had to spray my Sweetheart blueberry plant with anything. It bears a very tasty plentiful crop each year, is compact and I am very satisfied with it.
I live in zone 6 and we have plenty of rain so I don???t water my berries. I use an acidifying fertilizer twice during the spring and summer, and that???s it.
Will the blueberry plants overwinter in containers in a zone 4, or would I have to move them into a sheltered area?
HillaryN on Apr 29, 2017
BEST ANSWER: Typically, containerized roots will survive temps above 20 F, in my experience, but they must be very moist. If they dry in the container, they won't survive 30 degrees. If expected temps get lower than 20, then you should consider an insulation blanket, or a protected area, like a shed. Try to find a place that the temperature fluctuation is minimal.
How many berries Wil one plant produce?
Frank W on Sep 18, 2020
BEST ANSWER: We appreciate you reaching out to us. Not sure on the exact number of berries as we have no way to know that but it will yield up to 15 lbs per plant.

If you have any further questions please don't hesitate to reach back out to us. Have a great day!
Is Aug 6- Sep 8th really the best time for planting in my area (Zone 8)? It will be in the 90s every day... But you site seems to be calculating that is the best time? I just want to double check...
Bee R on Aug 2, 2020
BEST ANSWER: If you would like us to ship your order at a different time, please contact our Customer Support Team at 800.325.4180. We would be glad to help you arrange what suits you and your growing zone best.
Are all of the blueberries that you have can they be shipped to California. I have been looking at keep coming across that the blueberry plant cannot be shipped to California?
MAY O on Jun 25, 2020
BEST ANSWER: We appreciate you reaching out to us. I do not see any restrictions at this time for California, however they update those restrictions daily so this could change at any time.

If you have any further questions please don't hesitate to reach back out to us. Have a great day!
Can you grow Sweetheart blueberries in a container?
Jennifer M on Apr 4, 2020
BEST ANSWER: Jennifer: yes you can grow blueberries in a container. If it is to suficient size,
At least 12 inches deep and at least 3ft. Diameter. Blue berries need moist but well drained soil, with a ph of around five. I have heavy clay soil that doesn't drain well, so I plant them in used farm tires above ground so that they drain well. Be sure to use a mix of peat soil and other amendments that drain well and provide a lower ph. Mulch with pine needles if you can get them.Use a fertilizer for acid loving plants. I was disappointed with the quality of the plants I revived from starks. They were very small and diseased. Would not order from them again. Hope you have better luck. If not try to go to a local nursery where you can observe the plants first hand, and select heathy plants.
witch fruit, plants for zone 9B?
Patricia M on Jun 23, 2019
BEST ANSWER: If you enter your ZIP code at the following link and we'll be able to display the popular products that are available and rated for your location: // Also look for check marked varieties as you shop to ensure compatibility with your zone. If you have more questions regarding zone compatibility, please call Customer Support at 800.325.4180 and they would be glad to help.
Can this survive in zone 9a?
Kim M on May 12, 2019
BEST ANSWER: This blueberry is only zoned to 8 - the plant would suffer heat stress and probably not produce very well because it won't have enough chill hours. You'd be better off with Sunshine, Misty or Jubilee.
How disease and insect resistance are Sweet Heart blueberries? I live in zone 7B. Will that make disease and insects a bigger problem?
John R on Feb 18, 2018
BEST ANSWER: Sweetheart blueberries are quite disease-resistant to a number of conditions, provided that you keep the soil pH between 4.5 and 5.0. Living in Zone 7B should not present additional problems. If you have a particularly hot, dry summer, check the moisture level often because blueberries have shallow roots and they will dry out faster.
Hello, if I grow in a very large container, what do I do with the bush/tree at the start of Winter??
Sherry B on Jan 1, 2021

Customer Reviews

4.0 / 5.0
29 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Great plants
I planted 3 sweetheart blueberries in the spring last year when it was raining. Shortly after planting we had one of the worst droughts and the most 90+ temp days. All 3 made it and have doubled in size with the wet spring this year. One even has fruit on it.
May 8, 2017
over 5 years ago
Sweetheart Blueberry
Loaded with berries second year! Great taste! I plan to order more.
September 2, 2016
over 6 years ago
Sweetheart Blueberry
This was a gift to my brother and then I got it back because he was unable to care for the plant. I planted it last fall. This spring it was growing well and even had blossoms. It survived a brutal frost and proceeded to develop berries. They were few but had a nice flavor. I would order more for my berry patch.
August 4, 2016
over 6 years ago
sweetheart blueberry
The plants arrived in great condition and when my notice said they would be coming. They are very healthy plants and are doing well they really are growing The sweetheart blueberry is a very good berry. I would highly recommend this blueberry plant to anyone wishing to grow blueberries.
August 21, 2016
over 5 years ago
It took 5 years, but worth the wait
I had just about decided that blueberries just wouldn't grow on my land. Then, for reasons I don't know, this year it was covered in large, sweet berries. Hopefully, it wasn't a one-time fluke. I have another Sweetheart that's just beginning to grow like the first one. Hopefully, I'll have 2 bushes full of berries next year.
August 7, 2016
over 7 years ago
Sweetheart Blueberries
They are not thriving in my growing conditions. The Sweethearts are just a few of the 17 plants that I am growing. The others are thriving and producing, the Sweethearts have trouble producing leaves. Am considering giving up on them and using the valuable space that they take up with another variety.
May 15, 2016
over 6 years ago
While the plants were very nice looking when they arrived, after 2 years I still don't have a plant over 2 feet tall!!!
May 9, 2016
over 6 years ago
Need more time to evaluate
5 of the 7 plants I bought are leaved out. No berries yet. 1 is struggling and the other is small still but slowly growing. This spring no leaves came on the plants until the first week of May. All my other 100 or so blueberry bush varieties had berries already. I'm in zone 8a. I will be disappointed if I don't get a double crop. I think as they mature they will begin the double crop characteristic. I need more time to watch them to give a more accurate review. A 3 for now, hoping I can change that to a 5 soon.
May 21, 2016
over 6 years ago
Healthy plants
Got them in 2015. They were healthy and I transplanted them into the ground. Our soil is acidic so they like it. No blueberries yet but they are growing and look very healthy. I will mulch them with oak leaves before winter.
August 16, 2016
over 5 years ago
Sweetheart blueberry!!
Very happy with my sweetheart blueberry plants!! good growth the first year and No winter injury here in wisconsin! Cant wait to try the fruit !!
May 20, 2017
over 5 years ago