hybrid bilberry

Survives zone 4 through 7

Harvest calendar

Best planted in early spring after your last frost, or in fall before the ground freezes, depending on your climate.

A genuine but rare natural hybrid of bilberry and lingonberry, combining traits of both parents — partially evergreen foliage, dark violet berries, and reduced but not absent fertility. Essentially unknown outside botanical and specialty-collector contexts.

Hardiness

Zone 4–7

Habit

Shrub

Edible part

Fruit

Ripens

July–Sept

Mature size

Low semi-evergreen shrub 20–50 cm, intermediate between its parents

Light

Partial to full sun

Soil pH

4.0–5.5 — ⚠ STRICTLY ACID-LOVING (calcifuge). Will die on alkaline soil; use ericaceous compost + rainwater

Environment

Heath

Native range

A natural hybrid of V. myrtillus and V. vitis-idaea, arising where the two grow together — recorded locally in Britain (the Midlands and northern England), Germany, Scandinavia and across northern Europe.

Status

Wild

Years to fruit

2–3 yrs

Growth speed

Slow

Spacing

60 cm (24 in) apart — about 2.8 per m² (2.6 per 10 sq ft)

Leaf shape

Toothed-margined leaves, evergreen to semi-evergreen — intermediate between its deciduous V. myrtillus and evergreen V. vitis-idaea parents.

Root system

Shallow fibrous roots in the top 20–30 cm with few or no root hairs, relying on ericoid mycorrhizal fungi for uptake, spreading into colonies by underground rhizome. The clump you see is usually one plant. Keep it mulched and undisturbed; the rhizomes sit too shallow to survive digging around them.

Fruit description

Small, dark violet berries — exact size, texture and flavor aren't well documented for this rare wild hybrid.

Propagation

Vegetative only in practice — divide rooted rhizome pieces, or take semi-ripe cuttings. Seed is not a sensible route given the flowering and fertility problems noted under pollination.

Pollination

Genuinely uncertain — flowers and fruits markedly less than either parent species, but experimental crosses (with V. myrtillus as the seed parent) show it isn't fully sterile either. Not a garden decision most growers will face, given its rarity in cultivation.

The edible parts listed above are a starting point, not a field guide. Identify a plant with certainty — ideally against a local authority — before eating any part of it, and read the full disclaimer. Spotted something wrong? Report it.