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A picture of a Slender Crocosmia

Slender Crocosmia

Crocosmia pottsii

Also known as

Syn.Tritonia Pottsii, Montbretia

Full Sun
Easy care
Moderate watering
Frost Hardy


USDA zone


Minimum temperature

Expected size








3 years to reach maturity


  • spring
  • summer
  • autumn
  • winter

This plant has a mild fragrance

Slender Crocosmia Overview

This excellent garden plant grows best when planted alongside riverbanks or ponds where the flowers bend over the water. This plant flourishes in any sunny, but moist position and adds a dash of orange to your garden in warmer months. It is found in the wild in parts of KwaZulu-Natal.

Common problems with Slender Crocosmia

Spider mites are the only pests that affect Crocosmias leaves. Spray dishwashing liquid to get rid of unwanted insects.

Slender Crocosmia Companion Plants

Plant alongside grasses, annuals and small shrubs.

How to harvest Slender Crocosmia

Harvest flower stalks in mid-summer months. Harvest seeds in autumn and sow immediately or after the last cold spell.

How to propagate Slender Crocosmia


Sow seeds during autumn months after the seed pods have dried out. Sow to a depth of 1.5-2 mm in seed trays and cover with river sand. Germination should take place within 2 weeks.


Division of large clumps should be done when the plant is dormant (during winter). Offsets are the easiest and fastest to propagate. Take about 3 years to maturity.

Special features of Slender Crocosmia

Attracts birds

Nectar drinking birds are attracted to this species.

Attracts useful insects

Bees, moths and butterflies love the sweet flowers.

Pot plant

This is a great plant for any patio or deck, as it's smaller than its close relatives.

Wet sites

This species is usually found near and along side bodies of water.

Other uses of Slender Crocosmia

Grown for their brightly coloured flowers produced mainly in summer. Suitable for coastal conditions.


Crocosmia planted on mass makes a striking show in any garden.