Overview

Lavandula dentata var. dentata 'Ploughman's Blue' is a bushy shrubs in the genus Lavandula, part of the Lamiaceae family, with evergreen foliage. Lavandula dentata var. dentata 'Ploughman's Blue' grows best in full sun, and tolerates most soils and any pH. Its UK hardiness is rated H7. Suggested uses include gravel garden, mediterranean climate plants, city and courtyard gardens, cottage and informal garden, patio and container plants, wildlife gardens, garden edging, banks and slopes and flower borders and beds.

About

Lavandula dentata var. dentata 'Ploughman's Blue', commonly known as French lavender 'Ploughman's Blue', is a bushy, evergreen shrub within the genus Lavandula. These compact, aromatic plants feature narrow, toothed leaves and produce small tubular flowers in dense spikes during the summer. This cultivar thrives in full sun with sheltered exposure and prefers fertile, well-drained soils ranging from sandy to clay, across acid to alkaline pH. Hardy to UK zone H7, it is suitable for a variety of garden settings including gravel gardens, patios, and wildlife gardens, offering seasonal interest in spring and summer.

Growing conditions

Best soil and position for Lavandula

Sunlight
Full sun
Soil type
Sandy, Loamy, Clay
Soil pH
Acid, Alkaline, Neutral
Soil moisture
Well-drained, Moist but well-drained
Aspect
South-facing, East-facing, West-facing
Exposure
Sheltered
UK hardiness
H7

Plant details

Lavandula dentata var. dentata 'Ploughman's Blue' size, habit and characteristics

Plant type
Shrubs
Habit
Bushy
Foliage
Evergreen
Suggested uses
Gravel garden, Mediterranean climate plants, City and courtyard gardens, Cottage and informal garden, Patio and container plants, Wildlife gardens, Garden edging, Banks and slopes, Flower borders and beds

Care notes

Pruning and caring for Lavandula dentata var. dentata 'Ploughman's Blue'

Propagation
Seed sown in a cold frame in spring, Semi-hardwood cuttings in summer
Pest resistance
Rosemary beetle, Cuckoo spit (froghoppers)
Disease resistance
Grey moulds (Botrytis), Honey fungus (rarely)

Frequently asked questions

Where is the best place to plant Lavandula dentata var. dentata 'Ploughman's Blue'?

Lavandula dentata var. dentata 'Ploughman's Blue' prefers full sun. It suits sheltered positions.

What soil does Lavandula dentata var. dentata 'Ploughman's Blue' need?

Lavandula dentata var. dentata 'Ploughman's Blue' is adaptable and grows happily in most soil types, including sandy, loamy and clay. It is happy in soil of any pH. Aim for soil that stays well-drained to moist but well-drained.

Is Lavandula dentata var. dentata 'Ploughman's Blue' hardy in the UK?

Lavandula dentata var. dentata 'Ploughman's Blue' has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.

How do I propagate Lavandula dentata var. dentata 'Ploughman's Blue'?

Seed sown in a cold frame in spring, Semi-hardwood cuttings in summer.

More in the Lavandula genus

Browse all Lavandula