Plant Guide

Crocosmia x crocosmiiflora

Montbretia

Perennial in the Iris family with light green, long and narrow leaves (90 x 2 cm) that spreads with underground rhizomes. Sprays of bright orange flowers held on long, thin, zig-zag stems, arising from the foliage clumps during late summer. Can become invasive in mild, wet climates as it tolerates many adverse conditions including grazing. The seeds are not a problem, since not many are produced, but the plants can multiply and spread rapidly via their corms and rhizomes. In New Zealand and some other parts of the world Crocosmia x crocosmiiflora is regarded as an environmental weed, competing with ground covering shrubs and native seedlings.

Crocosmia x crocosmiiflora is a hybrid bred in France in 1880 by crossing two African species Crocosmia aurea and Crocosmia pottsii.

Prefers a sunny, sheltered spot in well-draining soil, but will adapt to most soils and tolerates partial shade, heat, and moist soils. Quite drought tolerant, but benefits from an occasional watering during exceptionally dry weather. Frost hardy (zones 5-9). In cold climates, the corms can be lifted and stored in a cool, dry place until spring. 

Easy to grow and consistently produces lots of flowers. Divide the clump after a few years to maintain vigour. Suitable for containers and cut flowers. Beautiful bright colours.

Type of plant

Herbaceous - Perennial

Size

foliage to 90 cm tall

Landscape Use

flower display, container, cut flowers

Specifications

  • Temperature: Hardy
  • Light: Medium High
  • Moisture: Low Medium
  • Soil: Light Medium Heavy
  • Wind tolerance: Average