How to Grow Japanese Wineberries UK | Regional Planting Calendar

Regional Planting Calendar

Rows marked derived are interpolated between regions our sources do state, because no source we consulted gives a figure for that region specifically. They are deliberately wider to reflect that uncertainty.

Quick Facts

Factor	Value
Sunlight	4-8 hours direct sun
Minimum survivable temp	-15C
Soil texture	Chalk, clay, loam or sand (RHS)
Drainage	Moist but well-drained or well-drained (RHS)
Lifecycle	Deciduous perennial shrub with biennial canes -- roots are perennial, canes fruit in their second year (NC State Extension). RHS records 2-5 years to maturity.
Edible parts	fruit

At a Glance

Soil & Growing Conditions

Water: Prefers moist soil (NC State Extension; University of Maryland Extension)

Growth Stages

Stage	BBCH	Notes
Planting and establishment	0	Propagate by separating runners or by tip layering (RHS); NC State adds division, seed or stem cuttings as alternatives. Usually fan-trained. Where containment matters, note that canes cannot produce seed in their first year, so cutting canes back before they mature restricts spread (University of Maryland Extension).
Vegetative growth	3	Vigorous scrambling growth, spreading by underground stems and by canes rooting where they touch soil -- medium-to-rapid, a foot or more per year (RHS; University of Maryland Extension). Long canes covered in soft, bright red bristles.
Flowering	6	Small white flowers surrounded by bristly red calyces, in dense clusters in summer (RHS).
Fruiting, harvest and pruning	8	Small, sweet, juicy fruit ripens from golden yellow to red, glossy with a hollow core when picked -- a real identification feature distinguishing it from blackberry (RHS; University of Maryland Extension). Cut old canes to the ground after fruiting and tie in the new canes.

Harvest & Storage

When to pick: Shiny orange-red berries, ripening gold to red, small sweet juicy fruit with a raspberry-like flavour, hollow core when picked (RHS; NC State Extension; University of Maryland Extension). Harvest midsummer.

Diseases

Grey mould

low

Botrytis cinerea

Soft brown fruit decay; Fuzzy grey-brown mould

Named directly on RHS's own growing-guide page as "grey moulds".

Honey fungus

low

Armillaria spp.

Named directly on RHS's own growing-guide page (rarely); NC State Extension separately states the genus is notably susceptible to honey fungus.

Pests

Raspberry cane borer

low

Oberea bimaculata

Named directly by NC State Extension.

Rednecked cane borer

low

Agrilus ruficollis

Named directly by NC State Extension.

Japanese Wineberry Photo Gallery

Bush loaded with berries

A Japanese wineberry bush loaded with red berries.

Bristly red stem

Close-up of a bright red bristly Japanese wineberry stem, a distinctive identification feature.

Berry cluster

A cluster of red Japanese wineberries on the branch.

Picking the fruit

A hand picking a ripe Japanese wineberry.

Thicket habit

A dense thicket of Japanese wineberry canes -- the vigorous, spreading growth that has made it a listed invasive species in parts of the US.

Bare canes in winter

Bare red Japanese wineberry canes in winter.

Bristles with dew

Macro detail of Japanese wineberry stem bristles with dew drops.

Trained on a trellis

Japanese wineberry trained on a garden trellis.

Prickle macro

Extreme close-up of Japanese wineberry stem prickles.

References

1. North Carolina State University Extension (Plant Toolbox) - Rubus phoenicolasius (wine raspberry)

   Perennial deciduous shrub, USDA zones 4a-8b. Soil: acid/neutral/alkaline, clay/loam/sand, moist well-drained. Full sun or partial shade. Size 9ft x 3ft3in, medium growth rate. Propagation: division, seed, stem cutting. Pests: raspberry cane borer, rednecked cane borer. Diseases: genus notably susceptible to honey fungus. Native to eastern Asia, Korea, Japan. Edible: juicy bright red fruit, raw or cooked, raspberry-like flavour. Invasiveness: listed as potentially invasive, banned in several New England states, thicket-forming/weedy, though not yet listed invasive/noxious in North Carolina specifically.

2. University of Maryland Extension - Wineberry

   Native to East Asia, introduced to US late 1800s as raspberry-breeding material. Classified as invasive plant/invasive woody plant. Full sun preferred, tolerates partial shade, thrives in moist soil; establishes readily along pond/wetland edges, fence rows, forest edges, fields, orchards, roadsides. Growth rate medium-rapid (1ft+/year). Mature size 3-6ft tall, arched stems to 10ft. Fruit: small glossy red raspberries, midsummer, hollow core when picked (distinguishes from blackberry). Management: pull/dig seedlings while small; cut mature canes to ground and eliminate regrowth promptly; canes cannot produce seed in their first year, so preventing canes from maturing restricts spread.

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.