How to Grow Northstar Cherry
Northstar Cherry
Prunus cerasus 'Northstar'
treeNorthstar is a semi-dwarf sour cherry tree that reaches 15-20 feet in height, making it ideal for home gardens and small spaces. It produces tart, dark red cherries suitable for pies, preserves, and fresh eating, and is highly cold-hardy and disease-resistant. The tree has a spreading, rounded canopy and produces abundant fruit with minimal chilling requirements.
When should you plant Northstar Cherry in your zone?
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Example Northstar Cherry timeline · Pittsburgh, PA (Zone 6b)
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Plant Northstar Cherry
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Northstar Cherry
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Northstar Cherry dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-8; extremely cold-hardy and suitable for northern climates
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Establishment (Year 1)
12 monthsYoung tree focuses on root development and branch structure. Minimal flowering; tree is leafy with new growth extending from main scaffold branches.
Water regularly (1-1.5 inches weekly). Prune to establish open center or vase form; remove competing central leaders and crossing branches. Stake if necessary in windy locations. Apply 2-3 inch mulch layer. Do not fertilize heavily.
Juvenile Growth (Years 1-2)
12-24 monthsTree develops its branch framework and canopy density. Some light flowering may occur but fruit is minimal or removed for tree vigor.
Continue structural pruning to establish desired shape. Thin any early fruit to redirect energy to growth. Maintain consistent moisture. Apply balanced fertilizer (10-10-10 or similar) in early spring. Watch for pest activity.
Flowering & Fruiting (Years 2-3 onward)
3-4 months (April-July in northern regions)Tree produces abundant white or pale pink flowers in spring on spurs along branches. Flowers self-fertile or cross-pollinate with other sour cherry varieties. Dark red cherries develop and mature in mid-summer.
Thin fruit if necessary for larger cherry size (space 2-3 inches apart on branches). Apply low-nitrogen, higher-phosphorus fertilizer (e.g., 5-10-10) in spring to support fruiting. Prune after harvest to maintain shape and open canopy. Ensure adequate water during fruit development.
Harvest & Dormancy (Mid-Late Summer through Fall)
2-3 months (July-September)Cherries ripen from bright red to deep crimson, fully mature mid-to-late July depending on location. Tree transitions to dormancy in fall with leaf color change.
Pick cherries when fully dark red and slightly soft. Do not force ripening; flavor peaks fully ripe. After harvest, apply post-harvest fertilizer to replenish nutrient reserves. Prune out dead wood in fall or early spring. Mulch base to protect roots in winter.
Winter Dormancy (Late Fall-Early Spring)
4-5 months (November-March)Tree is bare or nearly bare with minimal metabolic activity. Buds are set for next season's growth.
Minimal care required. Ensure winter mulch protection, especially in zones 3-4. Prune in late winter (February-March) for structure and disease/pest management. Can handle extreme cold down to -40°F.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Use yellow sticky traps in late spring; apply spinosad or kaolin clay spray starting 10 days after bloom; remove and destroy infested fruit; use reflective mulch
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Spray with strong water stream; apply insecticidal soap or neem oil in early spring before leaves fully expand; encourage beneficial insects
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Remove infected fruit and twigs; thin canopy for air circulation; avoid overhead watering; apply sulfur or fungicide during bloom and fruit development
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Hand-pick affected leaves; spray with spinosad or insecticidal soap; apply neem oil; encourage natural predators
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Ensure good air circulation via pruning; spray with sulfur or potassium bicarbonate fungicide in early spring and summer; avoid overhead watering
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Prune out infected branches 12 inches below knot; destroy prunings; apply dormant oil spray in late winter
Uses
Pies, Preserves & Jams
CulinaryNorthstar cherries are prized for baking, particularly in classic cherry pie, and are excellent for making jams, preserves, and syrup due to their naturally high pectin and tartness. The dark color and rich flavor develop when processed. [source]
Fresh Eating & Juice
CulinaryWhile more tart than sweet cherries, fully ripe Northstar cherries are enjoyable fresh, particularly for those who prefer less sweet fruit. They can be juiced or used in smoothies. [source]
Anti-inflammatory & Sleep Support
MedicinalTart cherries, including Northstar, contain anthocyanins and melatonin shown in research to support joint health, reduce inflammation, and improve sleep quality. Cherry juice concentrate is commonly used as a natural supplement. [source]
Cooking & Sauce
CulinaryNorthstar cherries are used to make savory cherry sauces for duck, lamb, and pork, as well as glazes and reduction sauces in fine cuisine. Their tartness balances rich meats. [source]
Wildlife Food Source
WildlifeThe abundant fruiting provides food for birds and other wildlife, supporting local ecosystems. Some growers plant specifically to attract and feed wildlife. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest in mid-to-late July (exact timing depends on region and weather). Pick cherries when fully dark red and slightly soft to the touch; they do not continue ripening after picking. Gently twist or snip with pruners to avoid damaging spurs. Peak flavor occurs when allowed to fully ripen on the tree. Use shallow containers to prevent crushing. Refrigerate immediately; cherries keep 1-2 weeks in cold storage. Wear gloves to avoid staining hands with dark cherry juice.
Fun Facts
- 🌱 Northstar is one of the hardiest cherry varieties available, surviving winters as cold as -40°F, making it suitable for USDA zones where most fruit trees cannot thrive.
- 🌱 Unlike sweet cherry trees, Northstar is largely self-fertile and does not require a pollinator tree, though cross-pollination with other sour cherry varieties (like Balaton or Montmorency) increases yield and fruit size.
- 🌱 The semi-dwarf nature of Northstar (reaching only 15-20 feet) makes it one of the few cherry trees suitable for small urban or suburban gardens, yet it remains highly productive, often bearing 40-80 pounds of fruit at full maturity.
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