Overview

Galeopsis is a bushy annual biennial in the genus Galeopsis, part of the Lamiaceae family, with deciduous foliage. Galeopsis 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, commonly known as hemp nettle or ironwort, is a bushy annual or biennial plant in the Lamiaceae family. It features deciduous foliage and thrives in full sun or partial shade, preferring east, south, or west-facing aspects. This cultivar grows well in fertile, moist but well-drained loam or clay soils with a range of pH levels 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 size, habit and characteristics

Plant type
Annual Biennial
Habit
Bushy
Foliage
Deciduous
Suggested uses
Wildlife gardens

Care notes

Pruning and caring for Galeopsis

Propagation
Seed
Pest resistance
Generally pest-free
Disease resistance
Generally disease-free

Frequently asked questions

Where is the best place to plant Galeopsis?

Galeopsis prefers full sun and partial shade. It suits exposed and sheltered positions.

What soil does Galeopsis need?

Galeopsis 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 hardy in the UK?

Galeopsis 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?

Seed.

More in the Galeopsis genus

Browse all Galeopsis