Shrubs, trees and climbers

Crape myrtle

LagerstroemiaLythraceae
Also: Crepe myrtle, Lagerstroemia
AT A GLANCE
Full sun Water: average H3down to −5 °C 2–6 m tall · 2–4 m wide In a pot: yes
Flowering · UK
Flowering · Northern Italy
Flowering · Central Italy
Flowering · Southern Italy and islands

A common street and garden tree in Italy; in Britain it needs the hottest, most sheltered spot to flower.

Care

Light

Full sun and heat — in cool summers it flowers sparsely or not at all.

Water

Medium when young; drought-tolerant once established.

Soil

Well-drained soil.

Pruning

Flowers on new wood: prune in late winter, removing thin and crossing shoots and shortening last year's growth. Avoid 'topping' the main branches to stumps.

Feeding

A balanced feed in spring.

Propagation

Softwood cuttings in early summer.

Month by month

Months change with the climate: in southern Italy tomatoes go out two months earlier than in England.

  1. FebruaryPrune before growth starts, keeping a good branch framework. how ›
  2. AugustWater young trees and pots in hot, dry spells. how ›
  3. OctoberEnjoy the autumn leaf colour.

Months based on climate: UK. Your choice stays on this device.

  1. FebruaryPrune before growth starts, keeping a good branch framework. how ›
  2. AugustWater young trees and pots in hot, dry spells. how ›
  3. OctoberEnjoy the autumn leaf colour.

Months based on climate: Northern Italy. Your choice stays on this device.

  1. JanuaryPrune before growth starts, keeping a good branch framework. how ›
  2. AugustWater young trees and pots in hot, dry spells. how ›
  3. OctoberEnjoy the autumn leaf colour.

Months based on climate: Central Italy. Your choice stays on this device.

  1. JanuaryPrune before growth starts, keeping a good branch framework. how ›
  2. AugustWater young trees and pots in hot, dry spells. how ›
  3. NovemberEnjoy the autumn leaf colour.

Months based on climate: Southern Italy and islands. Your choice stays on this device.

Common problems

Powdery mildewfull sheet ›

How to spot it. White coating on leaves and buds.

What to do. Choose resistant cultivars; ensure air flow.

No flowers in cool summers

How to spot it. Healthy leaves, few flowers.

What to do. Needs more heat and sun.

Aphids and sooty mouldfull sheet ›

How to spot it. Sticky leaves with black film.

What to do. Wash off; encourage predators.

Questions

Crape myrtle: is it hardy?

H3: Half hardy. It survives down to −5 °C.

Can it grow in a pot?

Yes, dwarf cultivars.

Crape myrtle: when do you prune it?

Flowers on new wood: prune in late winter, removing thin and crossing shoots and shortening last year's growth. In the calendar for UK, pruning falls in February.

Crape myrtle: when does it flower?

In the climate of UK it flowers in July–September.

When do you feed it?

A balanced feed in spring. Feeding months, UK: April.