Honeyberry (Lonicera caerulea)
2 sources cited · Verified
The short answer
- Plant
- Early March to mid April
- Site
- 6+ hours of sun
In the UK, honeyberries go in the ground early March to mid April.
Honeyberries (Lonicera caerulea) — Very hardy deciduous shrub, a form of edible honeysuckle.
Timing is the decision that matters most in the UK: sowing early March, and that same window applies across all 4 regions covered here.
Core growing advice on this page is checked against named horticultural sources — see References.
Regional Planting Calendar
Quick Facts
At a Glance
Growth Stages
Harvest & Storage
Pests
Honeyberry Photo Gallery
References
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Site: full sun for best yield; well-drained soil rich in organic matter, tolerates acidic and alkaline; mulch with well-composted organic matter to retain moisture. Planting: spring once frost risk has passed, allowing a summer to establish; plant in pairs/groups for pollination. Pollination: flowers late winter to very early spring when there is little pollinating insect activity -- hand-pollinate with a small, soft paintbrush. Pruning: young plants need only dead material removed for the first three years; established plants pruned early-mid summer after harvest -- remove weak/straggly/damaged growth, thin overcrowded shoots at the base, trim young shoot tips to encourage flowering laterals. Harvest: late spring to early summer, about two years to first crop; mature plant yields about 6kg; berries ripe when blue with a whitish bloom and purple-red flesh (green flesh means still sour). Pests/diseases: very hardy, no significant issues reported. Propagation: by seed (remove pulp, sow in warm moist conditions, no cold stratification needed), semi-ripe cuttings from non-fruiting stems in summer, or hardwood cuttings late autumn to winter. Height/spread 1.2m (4ft); hardy to -40C.
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Site: full sun to thrive (part sun gives less fruit); tolerant of most soils, best in well-drained loam or sandy loam, tolerates clay if well-drained. Hardiness: zones 1-4, U of S cultivars bred for cold hardiness, no winter protection needed. Spacing: at least 1m (3ft) apart, planted 2.5-5cm (1-2in) deeper than nursery depth, hole big enough for the whole root mass; keep grass/weeds clear within about 1m (3ft) of newly planted stems. Pollination: self-incompatible, needs another haskap of a different, simultaneously-blooming variety; pollinated by bees and other insects; at least two plants needed for a home garden. Pruning: fall or winter (form easier to see); doesn't typically need much; can rejuvenate by cutting back to ~15cm (6in) above soil and letting it regrow. Harvest: late June to early July; berries look ripe 5-10 days before they actually are; fully grown shrubs yield 3-4.5kg (6-10lb) a year; hand-picking works best, or shake into a container. Storage: 3-5 days refrigerated short-term; freeze, ferment, dehydrate or can for the long term. Pests/diseases: birds are the most common problem, netting with holes no larger than 1.25cm (0.5in) recommended; occasional sunscorch, cosmetic only. Propagation: commercial cultivars can't be grown from seed, propagated asexually via tissue culture; named cultivars are patented, propagated only by licensed growers. Named cultivars: Tundra, Borealis, Indigo Treat, Indigo Gem, Indigo Yum, Aurora, Honeybee, Blue Bell, Berry Blue, Cinderella -- berries range 0.7-2.17g each.
2 independent sources are cited for this crop. Where they disagree - soil pH is the clearest case - every figure is preserved rather than averaged into false precision.
Frequently Asked Questions
When should I sow honeyberries in the UK?
In Southern England, from early March. In Scotland, wait until early March. Treat these as a guide rather than a fixed date — the governing rule is to sow only once frost risk has passed and temperatures are reliably warm enough.
When do I sow honeyberries?
Sow early March to mid April.
Plan next season before the problems start
Most of the advice on this page comes down to timing and spacing — sowing at the right moment, rotating beds, and giving plants enough airflow. The UK Garden Planner lays your plot out month by month so those decisions are already made before the season starts.
Get the UK Garden Planner →Instant PDF download · Written for UK growing conditions
Last verified 2026-09-04
Where To Go From Here
Take this crop from reading into a written plan for your own beds.
Plan the next step
Use the printable SoilCommander planner for your region to turn this guide into sowing dates, bed layouts and weekly garden tasks.
