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A picture of a Snail Vine

Snail Vine

Phaseolus giganteus

Full Sun
Easy care
Moderate watering
Half-hardy

H3

RHS hardiness

-5°C

Minimum temperature

Expected size

Height
Spread

6m

Max

40cm

4m

Min

30cm

Flowering

  • spring
  • summer
  • autumn
  • winter

This plant has no fragrance

Snail Vine Overview

The snail vine is an attractive vine and features a purple flower that bears a resemblance to a snail, hence the name. It is also a legume and bears a close resemblance to pole bean varieties. Often confused with the Corkscrew vine, the snail vine is invasive where the corkscrew vine is not. Mostly only distinguishable by the flowers, corkscrew vine is highly fragranced where snail vine has no fragrance. This species lies in the Fabaceae (Fabaceae) family of legumes, peas and beans.

Common problems with Snail Vine

Susceptible to aphids

Snail Vine Companion Plants

Plant with tropical plants.

How to harvest Snail Vine

Seeds can be harvested once the seed pods have dried, but in frost prone areas harvest while still green.

How to propagate Snail Vine

Seed

Sow seeds in a sunny area in spring time, 7cm apart and cover with 1cm of light soil firmed down, keep soil moist at all times.

Layering

Vines will tip-root where they find suitable soil, making the plant highly invasive.

Other uses of Snail Vine

Ornamental

Grown in gardens to climb over pergolas.