Overview

Hesperis sibirica is a bushy annual biennial in the genus Hesperis, part of the Brassicaceae family, with deciduous foliage. Hesperis sibirica grows best in full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H6. Suggested uses include cottage and informal garden, wildlife gardens and flower borders and beds.

About

Hesperis sibirica is a bushy, deciduous cultivar within the Hesperis genus, known for its fragrant flowers with four petals. This plant thrives in full sun or partial shade and is suitable for east-, south-, or west-facing aspects, tolerating both exposed and sheltered locations. It prefers fertile, moist but well-drained soil, including chalk, clay, loam, or sand, across a range of pH levels from acid to alkaline. Hardy to UK zone H6, it is ideal for cottage and informal gardens, wildlife gardens, and flower borders, with interest in spring and summer. Propagation is by seed sown in situ or basal softwood cuttings in spring.

Growing conditions

Best soil and position for Hesperis

Sunlight
Full sun, Partial shade
Soil type
Chalk, Clay, Loam, Sand
Soil pH
Acid, Alkaline, Neutral
Soil moisture
Moist but well-drained
Aspect
East-facing, South-facing, West-facing
Exposure
Exposed, Sheltered
UK hardiness
H6

Plant details

Hesperis sibirica size, habit and characteristics

Plant type
Annual Biennial, Herbaceous Perennial
Habit
Bushy
Foliage
Deciduous
Suggested uses
Cottage and informal garden, Wildlife gardens, Flower borders and beds

Care notes

Pruning and caring for Hesperis sibirica

Propagation
Seed sown in situ, Basal softwood cuttings in spring
Pest resistance
Cabbage caterpillars, Flea beetles, Slugs and snails
Disease resistance
Powdery mildews

Frequently asked questions

Where is the best place to plant Hesperis sibirica?

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

What soil does Hesperis sibirica need?

Hesperis sibirica is adaptable and grows happily in most soil types, including chalk, clay, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.

Is Hesperis sibirica hardy in the UK?

Hesperis sibirica has an RHS hardiness rating of H6, meaning it is very hardy, tolerating -20 to -15°C across most of the UK.

How do I propagate Hesperis sibirica?

Seed sown in situ, Basal softwood cuttings in spring.

More in the Hesperis genus

Browse all Hesperis