About
From summer to autumn it produces male flowers in short clusters, and female flowers individually; all are bright yellow to 5cm across. A tender, tendril-climbing vine with rough-textured, maple-shaped leaves to 25cm across. From mid-summer fruits begin to form; these are green and cyclindrical, to 90cm long. Young fruits can be eaten as a vegetable. If left to mature the skin can be picked off, the seeds removed, and the fibrous body used as an abrasive sponge.
About the genus
Luffa are a genus of tropical and subtropical vines in the cucumber family which can be eaten when young, used as a loofah sponge or in some countries, combined with other materials to make furniture or houses. Leaves are large and dark green and the fruit green with a rough texture like a gourd
Growing conditions
SunlightFull sun
Soil typeLoam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained
AspectSouth-facing, West-facing
ExposureSheltered
UK hardinessH1C
Plant details
Plant typeAnnual Biennial
HabitClimbing
FoliageDeciduous
Height2.5-4 metres
Spread0.5-1 metres
Time to full height1 year
Suggested usesCity and courtyard gardens, Patio and container plants, Sub-tropical
ToxicityHarmful if eaten, except young fruit, don't eat if bitter. Wear gloves and other protective equipment when handling Pets (dogs, cats): Harmful if eaten, except young fruit, don't eat if bitter - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Care notes
CultivationUnder glass, plant in large pots or direct into the greenhouse border with support for the climbing tendrils; provide high humidity and shade from hot summer sun. Outdoors plant out in early summer against a sunny fence with climbing support. Luffas need a long growing season for the fruits to mature
PruningNo pruning required
PropagationSow seeds at 21-24°C in early spring
Pest resistanceGenerally pest-free
Disease resistanceMay be susceptible to powdery mildews