Northblue Bluberry

Product Code: bnorb

Blueberry 'Northblue'
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Details

The Northblue Blueberry produces plump, firm, navy blue fruit that has a wild blueberry flavor with a pleasing sugar to acid ratio. This edible plant work well for fresh eating and processing. Self-fertile, but will yield better when pollinated with 'Northcountry'. Lovely bright red fall color in the landscape. Mature size is around 18-30" tall and wide. Hardiness zone 4.

Planting & Care for Edible Plants – Blueberries

Preparation

  • Space bushes about 5 feet apart.
  • Blueberry bushes like full sun!
  • Apply fertilizer one month after planting, not at time of planting.
  • Blueberries are picky about soil. They require one that is acidic, high in organic matter, and well-drained yet moist.
  • Your pH level should ideally be between 4 and 5. If you’re not sure how to test your soil contact your local UW Extension for help.

Opening Plant Material

  • Containers - Completely saturate all container plants by putting in a larger container of water until stops bubbling, remove. Once this is done you’re not ready to plant.

Planting Containers

  • Dig a hole at about 20 inches deep and 18 inches wide.
  • Space bushes about 5 feet apart.
  • Slide plant from pot by tapping on the bottom of the pot.
  • With shovel or knife trim bottom 2" off of the root ball for plants in plastic containers.
  • Rotate the plant to the proper position. Never lift or move plants by the tops.
  • Place the root ball in the hole.
  • Back-fill the hole with soil, making sure the top of the root ball is visible and slightly higher than the soil around it.
  • Firm the soil around the plant. Water well to settle soil around the root ball.
  • Mulch to keep shallow blueberry root systems moist, which is essential. Apply a 2-4 inch layer of woodchips, saw dust or pine needles after planting.

Pruning – After Planting

  • Although it is not essential for container plants to be pruned after planting, a light pruning to remove any broken branches during shipment and improve shape will help the looks of your new planting.
  • Do not allow the bush to produce fruit for the first couple of years. Pinch back blossoms, this will help to stimulate growth.

Pruning - Through-out the Season

  • For the first four years after planting, there is no need to prune blueberry bushes. From then on, pruning is needed to stimulate growth of the new shoots that will bear fruit the following season.
  • Prune plants in late winter, preferably just before growth begins.
  • Weak or badly diseased canes should be removed entirely.

Harvesting

  • Blueberries will be ready for picking in late July-mid August.
  • Don’t rush to pick the berries as soon as they turn blue. Wait a couple days. When they are ready, they should fall off right into your hand.
  • Be aware that full production is reached after about 6 years.

Watering - After Planting

  • Plants typically take approximately 6 weeks to establish new roots in your soil. During this period, supply one to two inches of water per week for about the first two years. If enough rainfall occurs then you won’t need to worry about watering.
  • It’s smart to get a rain gauge to see where your water levels are.
  • Stick your finger into the soil around 3” to check soil moisture.

Watering - Through-out the Season

  • After the first season, plants should only be watered during extended periods without rain.
  • How do you know if your plants need water? The easiest way to tell is to touch the soil around the roots. If it is moist, there is no need to water. If it is dry, give it a good soaking with the hose end (no nozzle) watering the soil only, not the leaves.
  • Stick your finger into the soil around 3” to check soil moisture.

 

Go to our "Plant Features & Video Tab" for more information & tips on caring and maintaining this plant.

Handling & Planting Guidelines

Special Features & Videos for Blueberries

Special Plant Features & Tips

  • The Northblue Blueberry produces plump, firm, navy blue fruit that has a wild blueberry flavor with a pleasing sugar to acid ratio.
  • This edible plant work well for fresh eating and processing. Self-fertile, but will yield better when pollinated with 'Northcountry'.
  • Lovely bright red fall color in the landscape.
  • Mature size is around 18-30" tall and wide.
  • Hardiness zone 4. 
  • Mulch to keep shallow blueberry root systems moist, which is essential. Apply a 2-4 inch layer of woodchips, saw dust or pine needles after planting.
  • Do not allow the bush to produce fruit for the first couple of years. Pinch back blossoms, this will help to stimulate growth.
  • For the first four years after planting, there is no need to prune blueberry bushes. From then on, pruning is needed to stimulate growth of the new shoots that will bear fruit the following season.
  • Prune plants in late winter, preferably just before growth begins.
  • Weak or badly diseased canes should be removed entirely.
  • Blueberries will be ready for picking in late July-mid August.
  • Don’t rush to pick the berries as soon as they turn blue. Wait a couple days. When they are ready, they should fall off right into your hand.
  • Be aware that full production is reached after about 6 years.

How to plant containers

ItemApprox Weight (lbs.)Approx Base Dimensions (diameter)Approx Height
#7 Grow Bag** 35-50 14-16" 5-8'
#10 Grow Bag** 55-70 18" 6-8'
#15 Grow Bag** 65-80 22" 6-10'
#20 Grow Bag** 75-100 24" 8-12'
1 1/4" B&B** 250-500 22" for single stems, 28" for multiple stems  8-11'
1 1/2" B&B** 325-600 24" for single stems, 30" for multiple stems  10-12'
2" B&B** 500-700 28" for single stems, 32" for multiple stems 10-14'
2 1/2" B&B** 600-1000 30" for single stems, 36" for multiple stems 10-15'
3" B&B** 850-1000 34"-36"  12-16'
3 1/2" B&B** 1000 36"  12-18'
10' B&B** 250 22"  10'
12' B&B** 325 24"  12'
14' B&B** 500 28" 14'
16' B&B** 600 30"  16'
2' B&B** 50 12-16"  2'
3' B&B** 60-250 16-22"  3'
4' B&B** 250 22-24" 4'
5' B&B** 325 22-24"  5'
6' B&B** 150-325 16-24" 6'
7' B&B** 500-700 28-32"  7'
8' B&B** 600-700 14-30"  8'
9' B&B** 700 32"  9'
#3 container* Less than 35  10" 10" 
#5 container** 40 11" 10.5" 
#7 container** 60 14" 12" 
#10 container** 80 14" 14 
#20 container** 160 19.5" 17" 
Bare Root* varies, but always lighter no soil on roots varies depending on item

*#1 - #3 containers and bare root are the only items that can be shipped FedEx and/or by our delivery trucks (see below for more information regarding pick-up and local delivery. 

**Any items over 100 Ibs., #5 - #20 containers or B&B can only be delivered by our trucks due to FedEx shipping weight and size restrictions. Our trusted trucks only deliver around a 100 miles radius from our corporate office in Waterloo, Wisconsin. Any item you order can be picked-up at our corporate office in Waterloo, Wisconsin or our new retail garden center Winterland Nursery for free (bare root orders cannot be picked up at Winterland due to lack of bare root coolers). See our estimated delivery schedule here

Growing Zones: 3-8

Bloom Time: May
Color: Blue, Green, Red, White
Plant Size: 18-30" tall x 18-30" wide
Flower Color: White
Fall Color: Red
Fruit: Blue
Sunlight: Full Sun
Soil Conditions: Normal, Sandy, Clay, Acidic, Wet
Low Maintenance: No
Deer Resistant: No
Attracts Butterflies: No
Attracts Bees: Yes
Attracts Birds: Yes
Edible: Yes
Native: No

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