Overview
Galeopsis ladanum is a bushy annual biennial in the genus Galeopsis, part of the Lamiaceae family, with deciduous foliage. Galeopsis ladanum grows best in full sun and partial shade, and tolerates loam and clay soils and any pH. Its UK hardiness is rated H5. Suggested uses include wildlife gardens.
About
Galeopsis ladanum, commonly known as broad-leaved hemp nettle, is a bushy annual or biennial plant from the Lamiaceae family. It features deciduous foliage and thrives in full sun or partial shade, favouring east, south, or west-facing aspects. This cultivar grows well in fertile, moist but well-drained loam or clay soils with a pH ranging from acid to alkaline. Hardy to UK zone H5, it is suitable for both exposed and sheltered locations and is particularly valued in wildlife gardens during spring and summer. Propagation is by seed.
Growing conditions
Best soil and position for Galeopsis
- Sunlight
- Full sun, Partial shade
- Soil type
- Loam, Clay
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- East-facing, South-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H5
Plant details
Galeopsis ladanum size, habit and characteristics
- Plant type
- Annual Biennial
- Habit
- Bushy
- Foliage
- Deciduous
- Suggested uses
- Wildlife gardens
Care notes
Pruning and caring for Galeopsis ladanum
- Propagation
- Seed
- Pest resistance
- Generally pest-free
- Disease resistance
- Generally disease-free
Frequently asked questions
Where is the best place to plant Galeopsis ladanum?
Galeopsis ladanum prefers full sun and partial shade. It suits exposed and sheltered positions.
What soil does Galeopsis ladanum need?
Galeopsis ladanum grows best in loam and clay soil. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.
Is Galeopsis ladanum hardy in the UK?
Galeopsis ladanum has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.
How do I propagate Galeopsis ladanum?
Seed.
