Overview
Heracleum lehmannianum is a bushy annual biennial in the genus Heracleum, part of the Apiaceae family, with semi evergreen foliage. Heracleum lehmannianum grows best in full sun and partial shade, and tolerates loam soils and neutral pH. Its UK hardiness is rated H7. Suggested uses include wildlife gardens and wildflower meadow.
About
Heracleum lehmannianum, commonly known as Lehmann's hogweed, is a bushy cultivar within the Heracleum genus, which includes biennial or perennial herbs such as giant hogweed and cow parsley. This semi-evergreen plant thrives in fertile, moist but well-drained loam soil with a neutral pH, and it is hardy to UK zone H7. It prefers full sun to partial shade and can be grown in exposed positions facing any direction. Suitable for wildlife gardens and wildflower meadows, it offers seasonal interest in spring and summer and can be propagated by seed or division.
Growing conditions
Best soil and position for Heracleum
- Sunlight
- Full sun, Partial shade
- Soil type
- Loam
- Soil pH
- Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- East-facing, North-facing, South-facing, West-facing
- Exposure
- Exposed
- UK hardiness
- H7
Plant details
Heracleum lehmannianum size, habit and characteristics
- Plant type
- Annual Biennial, Herbaceous Perennial
- Habit
- Bushy
- Foliage
- Semi evergreen
- Suggested uses
- Wildlife gardens, Wildflower meadow
Care notes
Pruning and caring for Heracleum lehmannianum
- Propagation
- Seed, Division
Frequently asked questions
Where is the best place to plant Heracleum lehmannianum?
Heracleum lehmannianum prefers full sun and partial shade. It suits exposed positions.
What soil does Heracleum lehmannianum need?
Heracleum lehmannianum grows best in loam soil. It prefers neutral soil. Aim for soil that stays moist but well-drained.
Is Heracleum lehmannianum hardy in the UK?
Heracleum lehmannianum has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.
How do I propagate Heracleum lehmannianum?
Seed, Division.
More in the Heracleum genus
- Heracleum mantegazzianumgiant hogweed
- Heracleum maximumAmerican cow parsnip
- Heracleum nepalense
- Heracleum panacesHercules' woundwort
- Heracleum sphondylium 'Pink Cloud'
- Heracleum sphondylium var. angustifolium
- Heracleum steveniiSteven's hogweed
- Heracleum villosumgiant cow parsnip
