Canna glauca thrives in consistently moist soil. Water regularly, especially during hot weather, ensuring the soil does not dry out completely.

Reduce watering slightly in cooler months, but maintain adequate moisture for optimal growth. Avoid waterlogged conditions, which can lead to root rot.

Prune spent flower stalks to encourage more blooms and maintain a tidy appearance. In autumn, as foliage yellows and dies back, cut the stems down to about 10-15 cm above the ground.

This encourages the plant to go dormant and prepares it for winter.

Propagate Canna glauca by dividing rhizomes in early spring. Carefully separate healthy rhizomes with at least one bud or growth point. Replant them directly into the soil or pots, ensuring the bud faces upwards.

It can also be grown from seed, but germination can be slow and erratic.

Repot Canna glauca every 2-3 years, or when the rhizomes have filled the pot. Do this in early spring before new growth begins.

Choose a pot that is one size larger than the current one, using fresh, well-draining potting mix. Ensure adequate space for root development.