Water regularly during the growing season, especially during dry spells, ensuring the soil remains consistently moist but not waterlogged. Reduce watering in autumn as the foliage begins to die back.

Allow the top few centimeters of soil to dry out between waterings.

Deadhead spent flower spikes regularly to encourage further blooming and prevent self-seeding.

In late autumn or early spring, cut back the old, withered foliage to the ground to maintain a tidy appearance and allow new growth to emerge unimpeded. Remove any damaged or diseased leaves promptly.

Propagate by division in early spring or autumn. Carefully lift the clumps and separate the cormous roots, replanting healthy divisions immediately.

Alternatively, sow fresh seeds in a cold frame in autumn or early spring. Young plants may take a year or two to establish and flower well.

Repot potted Montbretia every 2-3 years in early spring, just as new growth begins. Use a good quality, well-draining potting mix.

This process helps to refresh the soil and prevent the corms from becoming overcrowded, ensuring vigorous growth and prolific flowering.