upland blackberry
Rubus pergratus
Family: Rosaceae
What it is like
Rubus pergratus is a deciduous Shrub growing to 3 m (9ft 10in). The species is hermaphrodite (has both male and female organs) and is pollinated by Insects. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.
Height (m): 3
Where it is found
Thickets, borders of woods and clearings.
Eastern N. America.
Conservation Status:
Countries/locations it is found in
How it is used
Food
Rating: 2
Fruit - raw or cooked.
Medicine
Rating: 0
Other
Rating: 1
A purple to dull blue dye is obtained from the fruit.
Dye: Plants that provide dyes.
How it is grown
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 many parts of the country. According to one report this species is no more than a synonym of R. pensylvanicus. 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.
Propagating it: 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, July/August in a frame. Tip layering in July. Plant out in autumn. Division in early spring or just before leaf-fall in the autumn.
Best place to grow: Woodland Garden Sunny Edge; Dappled Shade;
Habit: Shrub
Hardiness:
Growth:
Soil: Light (sandy), medium, heavy (clay)
Shade: Semi-shade, no shade
Moisture: Moist