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
- Lavandulalavender

- Lavandula angustifolia 'Blue Mountain'English lavender 'Blue Mountain'

- Lavandula angustifolia 'Ellagance Ice' (Ellagance Series)English lavender 'Ellagance Ice'

- Lavandula angustifolia 'Felice Light Blue'PBREnglish lavender 'Felice Light Blue'

- Lavandula angustifolia 'Felice Purple'PBREnglish lavender 'Felice Purple'

- Lavandula angustifolia 'Lavender Haze'English lavender 'Lavender Haze'

- Lavandula angustifolia 'Nana Atropurpurea'English lavender 'Nana Atropurpurea'

- Lavandula angustifolia White Summer ('Florlavwh1'PBR)English lavender [White Summer]
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