Not the plant you're looking for? Search over 300,000 plants

Herbaceous Perennial

Datisca cannabina

Cretan hemp

a tall, clump-forming herbaceous perennial, to 2m or more in height, with upright stems clothed in bright green, ash-like leaves, and arching over at the tips where they produce long, hanging tassels of tiny greenish-white flowers in summer

Save to My plants

Buy this plant

Plant nurseries
10 suppliers

Ultimate height

1.5–2.5 metres

Time to ultimate height

2–5 years

Ultimate spread

1.5–2.5 metres

Clay

Loam

Moisture

Moist but well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun
Partial shade

Aspect

West–facing or East–facing or South–facing or North–facing

Exposure

Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Datiscaceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: Bushy
Genus: Datisca are large herbaceous perennials with long leaves divided into many leaflets, and ball- or tassel-shaped clusters of green flowers in summer; male and female on separate plants
Name status: Correct
Plant range: Asia Minor to India

How to grow

Cultivation

Grow in fertile, moist but well-drained soil in sun or semi-shade

Propagation

Propagate by seed or by division in spring

Suggested planting locations and garden types

Cottage and informal garden
Flower borders and beds

Pruning

Cut stems down at the end of the season

Pests

Generally problem free

Diseases

Generally problem free

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.