Closely related to Rubus deliciosus[
Rubus trilobus is a deciduous shrub producing a cluster of unarmed, erect to straggling stems from a woody rootstock; the plant can grow 50 - 150cm tall, exceptionally to 500cm when growing through and supported by other vegetation[
The plant is harvested from the wild for local use as a food. It is occasionally planted as an ornamental in gardens, valued especially for its large, showy flowers[
C. America - Guatemala, southern Mexico.
Moist or wet, mixed or coniferous, mountain forest, frequently in forest of oak, Cupressus, or Abies, sometimes on white-sand slopes, at elevations from 2,000 0 4,200 metres[
Rubus trilobus is a surprisingly hardy plant considering its native range. It can tolerate occasional temperatures falling as low as -15°c.
Species in this genus are generally easily grown in a good well-drained loamy soil in sun or semi-shade[
Fruit - raw or cooked. Sweet, with a distinctly acidulous flavour[
]. The black-purple, hemispherical fruit is about 15mm wide[
Seed - requires stratification and is best sown in early autumn in a cold frame. Stored seed requires one month stratification at about 3°c and is best sown as early as possible in the year. Prick out the seedlings when they are large enough to handle and grow on in a cold frame. Plant them out into their permanent positions in late spring of the following year.
Cuttings of half-ripe wood, mid summer in a frame[
Tip layering in July. Plant out in autumn.
Division in early spring or just before leaf-fall in the autumn[