Lavandula pinnata

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fern leaf lavender

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Other common names

jagged lavender

Synonyms

Lavandula pinnata var. pinnata
Lavandula pterostoechas pinnata
Lavandula madeiriense

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Shrubs Conservatory Greenhouse
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A bushy, spreading evergreen shrub about 1m in height, with fern-like white-hairy, grey-green leaves, and bearing unbranched spikes of fragrant blue-purple flowers to 9cm long, in late summer

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
0.5-1 metres

Growing Conditions

Chalk Loam Sand
Moisture
Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H3

Colour & Scent

Fragrance Flower Foliage
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Lamiaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Bushy
Genus
Lavandula are small aromatic evergreen shrubs with usually narrow, simple, entire, toothed or lobed leaves and small tubular flowers in dense spikes in summer
Name Status
Correct
Plant Range
Canary Islands, Maderia

How to Grow

Cultivation

Grow in well-drained soil in a sheltered, sunny position. In colder areas, may need protection from very low temperatures and excess winter wet. Also suitable for growing in containers that can be overwintered in an unheated greenhouse. See lavender cultivation for further advice

Propagation

Propagate by softwood or semi-ripe cuttings. See our video How to take lavender cuttings for more advice

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Coastal
  • Mediterranean climate plants
  • Patio and container plants
  • Wildlife gardens
  • Conservatory and greenhouse

Pruning

Pruning group 10; deadhead after flowering. Trimming in late summer prevents plants from becoming straggly, but you can leave plants for a season to benefit wildlife with seeds or as shelter if you prefer. Avoid pruning in autumn in wet or cold regions as this may leave plants vulnerable to winter damage. Avoid cutting back into old wood

Pests

May be susceptible to rosemary beetle, cuckoo spit and sage leafhopper

Diseases

High Risk Host for Xylella fastidiosa. May be susceptible to grey moulds (Botrytis) and honey fungus (rarely)