Flowers

Flame lily

Gloriosa superba

With its red and yellow petals curved backwards like flames, the flame lily is a spectacular but extremely poisonous climber, to be handled with caution.

Characteristics

Scientific nameGloriosa superba
Heightfino a 2–3 m (rampicante)
SunlightFull sun or partial shade
WaterRegular in growth, suspended when dormant
SoilFertile and well-drained
ToxicityHighly toxic (colchicine), potentially lethal
GrowthFast in summer, rhizome dormant in winter
TemperatureTender, fears frost
FloweringJun, Jul, Aug, Sep
IrrigationRegular in growth, then to be suspended

A flower that looks like a flame

The flame lily is a climbing plant with unmistakable, spectacular flowers. The petals, long and wavy, fold conspicuously backwards and shade from bright red to yellow, giving the whole flower the appearance of a flickering flame or a coloured claw. The leaves, green and glossy, end in a small spiral tendril that the plant uses to grip supports and climb. It grows from an underground rhizome and produces its finest flowers in summer.

Origin and distribution

It is native to tropical Africa and Southeast Asia, where it grows in warm-climate areas with alternating seasons of humidity and drought. Thanks to its beauty it is cultivated as an ornamental plant in many parts of the world. It is the national flower of Zimbabwe.

Cultivation and care

The flame lily loves full sun or partial shade and a fertile, well-drained soil. It needs a support, such as a trellis or netting, on which the tendrils can climb. During the growing season it should be watered regularly, while in winter the rhizome goes into rest and watering should be suspended. It fears frost: in cold climates the rhizome can be dug up and kept in shelter until the following spring.

Warning: a highly poisonous plant

The flame lily is an extremely toxic plant: all its parts, and in particular the rhizome, contain colchicine, a poisonous substance that can be lethal if eaten, even in small quantities. It must therefore be kept absolutely away from children and pets, and handled with gloves to avoid irritation. Despite its undeniable beauty, its cultivation requires awareness and caution. It is classified as a species of least concern globally.

Flowering season

JanFebMarAprMayJunJulAugSepOctNovDec

Practical tips

Watering

Water needs: Regular in growth, suspended when dormant — always check soil moisture before watering.

Position

Prefers Full sun or partial shade: provide the right light and rotate the plant for even growth.

Substrate

Recommended soil: Fertile and well-drained. Refresh the substrate every 1-2 years.

Leaves

Dust the leaves with a damp cloth to support photosynthesis.

Feeding

Feed during the growing season (spring-summer) and stop in winter.

Pros

  • Spectacular flame-shaped flowers
  • Elegant climber with tendrils
  • National flower of Zimbabwe
  • Easy to grow in a warm climate

Cons

  • Highly toxic, potentially lethal
  • Fears frost, needs shelter in winter
  • Needs a support to climb on

FAQ

Is the flame lily poisonous?
Yes, extremely so. All its parts, in particular the rhizome, contain colchicine, a substance that can be lethal if eaten, even in small quantities. It must be kept away from children and animals and handled with gloves to avoid irritation.
How does it climb?
The leaves of the flame lily end in a small spiral tendril, which the plant uses to grip supports. For this reason, in cultivation, it needs a trellis, netting or another support to climb on.
How is it cared for in winter?
In winter the rhizome goes into rest and watering should be suspended. Since the plant fears frost, in cold climates the rhizome can be dug up and kept in a dry, sheltered place until the following spring.
Why do the flowers look like flames?
The petals are long, wavy and fold conspicuously backwards, shading from bright red to yellow. This shape and these colours give the flower the appearance of a flickering flame, hence the common name flame lily.

You may also like