A picture of a Devil's Tobacco

Devil's Tobacco

Lobelia tupa

Also known as

Giant Lobelia

Lobelia tupa inflorescence by Stan Shebs (CC BY-SA 3.0)

Full Sun
Moderate care
Light watering
Frost Hardy

H4

RHS hardiness

-10°C

Minimum temperature

Expected size

Height
Spread

2.5m

Max

1m

1.5m

Min

50cm

3 years to reach maturity

Flowering

  • spring
  • summer
  • autumn
  • winter

More images of Devil's Tobacco

Lobelia tupa form
A photo of Devil's Tobacco

Devil's Tobacco Overview

Lobelia tupa is an upright, woody-based perennial species that grows to around 2m in height. It has thin leaves which measure around 30cm in length, these are grey-green in colour and covered in hairs. Flowers are red and tubular in shape, they measure approximately 6cm in length and appear in late summer and autumn. Grows best in full sun and well-draining soil, trim back after flowering to encourage a good habit.

Common problems with Devil's Tobacco

How to propagate Devil's Tobacco

Seed

Division

Perennial species by seed or division in the spring. Specific cultivars are propagated by division only.

Cuttings

Shrubs by semi-ripe cuttings in summer.

Special features of Devil's Tobacco

Attractive flowers

Other uses of Devil's Tobacco

Grown for their flowers. Some are suitable for wild gardens or by the waterside. Suitable for coastal conditions.