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Herbaceous PerennialSynonym

Strobilanthes atropurpurea misapplied

Mexican petunia

A herbaceous perennial to around 60cm high, with hairy, winged stems bearing oval-shaped, toothed dark green leaves. Dense spikes of curved, tubular purple flowers are produced in late summer

Synonyms
Strobilanthes alata
Strobilanthes urticifolia
see moreStrobilanthes atropurpurea misapplied
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Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Loam
Moisture
Well–drained, Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Purple Green
Autumn Green
Winter
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Sheltered
Hardiness
H4
Botanical details
Family
Acanthaceae
Native to GB / Ireland
No
Foliage
Deciduous
Habit
Bushy
Genus

Strobilanthes can be evergreen or herbaceous perennials or subshrubs with simple, opposite leaves and spikes, cone-like clusters or loose panicles of tubular or funnel-shaped flowers

Name status

Correct

Plant range
Afghanistan to Indian Subcontinent

How to grow

Cultivation

Grow in light, fertile, well-drained soil that does not dry out in summer, in full sun or part shade. May benefit from a winter mulch in colder areas

Propagation

Propagate by seed, sown at 13-18°C in spring, or by softwood cuttings in late spring or early summer

Suggested planting locations and garden types
  • Cottage and informal garden
  • Flower borders and beds
  • Wall side borders
Pruning

Pinch out when young to encourage a bushy habit

Pests

May be susceptible to red spider mite

Diseases

Generally disease-free

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