Plains blackberry
Rubus laudatus
Family: Rosaceae
What it is like
Rubus laudatus is a deciduous Shrub growing to 5 m (16ft 5in). See above for USDA hardiness. It is hardy to UK zone 4. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects, Apomictic (reproduce by seeds formed without sexual fusion). 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): 5
Where it is found
Thickets, borders of woods, clearings etc.
Central 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
Easily grown in a good well-drained loamy soil in sun or semi-shade. This species is a blackberry with biennial stems, it produces a number of new stems each year from the perennial rootstock, these stems fruit in their second year and then die. The plant produces apomictic flowers, these produce fruit and viable seed without fertilization, each seedling is a genetic copy of the parent. 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: 4-8
Growth:
Soil: Light (sandy), medium, heavy (clay)
Shade: Semi-shade, no shade
Moisture: Moist