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Herbaceous Perennial

Hyssopus officinalis f. albus
  • RHS Plants for pollinators

white-flowered hyssop

A compact, semi-evergreen sub-shrub to around 60cm high, with a spreading habit and aromatic, linear leaves. Slender spikes of funnel-shaped white flowers are produced in summer and early autumn

Other common names
hyssop
Synonyms
Hyssopus albus aristatus
Hyssopus officinalis white-flowered
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Size
Ultimate height
0.5–1 metres
Time to ultimate height
5–10 years
Ultimate spread
0.5–1 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Well–drained
pH
Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer White Green
Autumn White Green
Winter Green
Position
  • Full sun
  • Partial shade
Aspect

South–facing or West–facing

Exposure
Exposed or Sheltered
Hardiness
H7
Botanical details
Family
Lamiaceae
Native to the UK
No
Foliage
Semi evergreen
Habit
Bushy, Spreading branched
Genus

Hyssopus can be herbaceous perennials or evergreen shrubs, with linear, aromatic leaves and whorls of tubular, 2-lipped flowers in spike-like inforescences

Name status

Correct

How to grow

Cultivation

Grow in fertile, well-drained, alkaline to neutral soil in full sun

Propagation

Propagate by seed or by softwood cuttings in summer

Suggested planting locations and garden types
  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Rock garden
  • Wildlife gardens
  • Gravel garden
  • Ground cover
  • Wall side borders
Pruning

Pruning group 10 in mid-spring

Pests

May be susceptible to sage leafhopper

Diseases

Generally disease-free

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