How to Grow Honeyberry (Haskap)
Lonicera caerulea
Honeyberry shrubs offer vibrant purple-blue berries that ripen in early summer, providing a unique flavor profile for home gardens. Their cold-hardy nature allows them to thrive in cooler climates where many other fruit bushes struggle. Gardeners value these plants for their ease of growth and exceptional natural resistance to common diseases.
Starting Honeyberry (Haskap): indoors or direct sow?
🌾 Sow directly in the garden — Honeyberry (Haskap) is not usually started indoors.
Because Honeyberry is usually propagated by purchasing established shrubs or bare-root plants rather than sowing seeds, there is no specific week to start indoors before the last frost.
Soil, care & harvest
Prepare your soil by ensuring it drains well and falls within a pH range of 5.0 to 7.0. Since Honeyberry is typically grown from established plants rather than seeds, direct sowing is rare but possible in early spring before the last frost. If starting from seed, expect germination between 30 to 90 days. For bare-root or container starts, plant outdoors once soil temperatures have warmed sufficiently after the danger of hard frosts has passed.
Space your shrubs 4 to 6 feet apart to allow proper air circulation and fruit production. While these plants do not require trellising, they benefit from a sturdy structure if trained as espaliers. Water deeply about one inch per week during dry spells, reducing frequency once the root system is established. Apply a layer of organic mulch around the base to retain moisture and suppress weeds, feeding sparingly in early spring.
Birds are the primary concern for your crop; consider netting or visual deterrents to protect ripening fruit. Occasional aphids can appear but rarely cause significant damage due to the plant's excellent natural resistance. Harvest begins in very early summer, taking approximately 730 to 1095 days from planting to full production depending on age and variety. Pick berries when they turn deep purple-blue for peak sweetness.
When to Plant Honeyberry (Haskap)
Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.
Companion Plants for Honeyberry (Haskap)
✓ Good companions
Similar soil pH requirements (acidic) and compatible root systems
Repels aphids and other pests while attracting beneficial insects
Deep roots bring nutrients to surface and leaves make excellent mulch
Deters nematodes and other soil pests while attracting pollinators
Creates natural windbreak and acidifies soil through needle drop
Attracts beneficial pollinators and shares similar growing conditions
Thrives in same acidic soil conditions and provides wind protection
Acts as living mulch, suppresses weeds, and shares acidic soil preference
✗ Keep away from
Produces juglone which is toxic to honeyberries and inhibits growth
Heavy nitrogen feeders that compete for nutrients and prefer alkaline soil
Allelopathic properties inhibit growth of nearby plants including berry bushes
Nutrition Facts
Per 100g serving (USDA FoodData Central)