How to Grow Haskap
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Haskap
Lonicera caerulea var. edulis
shrubHaskap is a cold-hardy deciduous shrub native to Russia and Asia that produces small, elongated dark blue berries with a sweet-tart flavor similar to blueberries. These nutrient-dense berries have become increasingly popular in northern climates where traditional berry crops struggle. The plant is exceptionally hardy, productive, and relatively low-maintenance once established.
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Example Haskap timeline · Pittsburgh, PA (Zone 6b)
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Plant Haskap
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 Haskap
Late summer into fallBefore the first fall frost (≈ Nov 8)
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 2-6; excellent for cold climates; can grow in zone 7 with afternoon shade
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Get my Haskap timeline →Growth Stages
Establishment (Year 1)
12 monthsYoung shrub focuses on root development; minimal flowering; growth is slow and steady
Water regularly to establish deep roots. Remove any flowers the first year to direct energy to growth. Apply mulch. Fertilize lightly with balanced fertilizer in spring.
Vegetative Growth (Years 2-3)
24 monthsShrub grows taller and bushier; multiple stems develop; leaves are medium green and elongated
Prune lightly to shape plant and encourage bushiness. Allow some flowers but remove most to continue building plant structure. Maintain consistent moisture. Avoid heavy nitrogen fertilization.
Flowering & Fruiting (Year 3+)
3-4 months (flowering to fruit maturity)Small, pale yellow tubular flowers appear in early spring before leaves fully emerge; flowers develop into small oblong berries that ripen to dark blue by late spring/early summer
Plant multiple varieties for cross-pollination to ensure good fruit set. Thin excess fruit if desired for larger berries. Ensure adequate water during fruit development.
Mature Production (Year 4+)
Ongoing annual cycleFully established shrub reaches 4-6 feet tall; produces abundant clusters of berries; becomes very hardy and low-maintenance
Prune after harvest to remove dead wood and maintain shape. Fertilize annually in spring. Continue consistent watering. Some cultivars benefit from light thinning of branches to improve air circulation.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Remove infected leaves; apply neem oil or insecticidal soap if infestation is severe; encourage beneficial insects
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Spray with strong water stream; increase humidity; apply neem oil if needed; ensure adequate watering
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Remove with water spray; apply insecticidal soap or neem oil; encourage natural predators like ladybugs
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Hand-pick in early morning; use Japanese beetle traps away from plant; apply spinosad if population is high
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Ensure good air circulation; avoid overhead watering; apply sulfur or baking soda spray if needed; prune infected sections
Uses
Fresh eating and preserves
CulinaryHaskap berries have a unique sweet-tart flavor with hints of honeysuckle and can be eaten fresh, frozen, or made into jams, syrups, wines, and baked goods. The berries are versatile and hold their shape well in cooking. [source]
Antioxidant-rich superfruit
MedicinalHaskap berries contain high levels of anthocyanins, polyphenols, and antioxidants similar to blueberries, supporting immune function and reducing inflammation. Traditional uses in Russia and Asia include supporting cardiovascular health. [source]
Natural dye and food coloring
HouseholdThe deep blue pigment in haskap berries can be used to create natural dyes for textiles and natural food coloring for cooking and beverages. [source]
Early-season wildlife food
WildlifeHaskap berries ripen very early in the growing season (before most other berries), providing crucial nutrition for migrating birds and other wildlife when food sources are limited. [source]
Juice and beverage production
CulinaryThe juice of haskap berries makes excellent smoothies, cordials, and fermented beverages. The juice is tart and nutrient-dense, often blended with sweeter fruits or used in cocktails. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Berries ripen in late May to early July depending on climate and variety. They are fully ripe when deep blue and slightly soft to gentle pressure. Harvest by hand or allow to drop onto cloth placed beneath plant. Ripe berries are delicate and don't store long at room temperature; refrigerate immediately. For best flavor and nutrition, harvest when fully ripe. One mature plant can produce 4-8 pounds of berries annually.
Fun Facts
- 🌱 Haskap is native to the Russian Far East, Siberia, and parts of Asia where it grows in very cold climates; the name 'haskap' comes from the Ainu indigenous people of Japan
- 🌱 Unlike most fruit plants, haskap flowers and begins fruiting extremely early in spring before most garden pests and diseases become active, resulting in cleaner, less-damaged fruit with minimal pest management needed
- 🌱 Haskap berries must have cross-pollination from a different variety to set fruit well, so planting at least two different cultivars together dramatically increases yield
Gardening Terms
New to gardening? Learn about terms used in this guide:
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