Rubus acer

L. H. Bailey

Long's Blackberry

Rosaceae Edible: Fruit 1 iNaturalist observations

Has a deadly poisonous lookalike — see comparison below

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Summary

A deciduous shrub reaching 1.2 m tall with hermaphroditic flowers pollinated by insects. Suitable for light sandy, medium loamy, or heavy clay soils with well-drained conditions and mildly acidic to basic pH. Tolerates semi-shade or full sun and prefers moist soil.

Description

Edible Uses

The fruit can be eaten raw or cooked and is possibly edible — it is certainly not poisonous.

Medicinal Uses

None known.

Distribution

It is a temperate plant.

Where It Grows

North America, USA,

Cultivation

We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors in most parts of this country. The following notes are based on the general needs of the genus. Easily grown in a good well-drained loamy soil in sun or semi-shade. Plants in this genus are notably susceptible to honey fungus.

Propagation

Seed requires stratification and is best sown in early autumn in a cold frame. Stored seed needs one month stratification at about 3°c and should be sown as early as possible in the year. Prick out seedlings when large enough to handle and grow on in a cold frame, then plant out into permanent positions in late spring of the following year. Cuttings of half-ripe wood can be taken in July/August in a frame. Tip layering in July, planting out in autumn. Division can be done in early spring or just before leaf-fall in autumn.