Curcumas in the garden bring lush foliage and exotic flower spikes that are perfect for semi-shaded tropical, subtropical and cottage-style gardens. These tropical perennials belong to the ginger family (Zingiberaceae) and make fantastic long-lasting cut flowers. They also attract pollinators like bees and butterflies. If space is limited or you live in a cooler climate, curcumas can be successfully grown in containers. Plants are commonly available in bloom during late spring and summer. They die back in winter and re-emerge when warmer weather returns.
1. Position curcumas in the garden
Curcumas prefer a sheltered, partially shaded position. Direct harsh sun can scorch their leaves, while deep shade may reduce blooming.
2. Soil requirements for curcumas in the garden
A rich, well-drained soil is essential. Amend heavy or clay soils with gypsum and generous organic matter to improve drainage. Prior to planting, work through Rocky Point ActivGrow Soil Improver to prepare the bed.
3. Planting curcumas in the garden
Prepare the soil by adding Rocky Point ActivGrow Soil Improver to a depth of 30 cm. Plant your curcumas about 30 cm apart, water in well and mulch with Tea Tree or Cypress Mulch.
4. Watering & feeding curcumas in the garden
Give regular waterings during the growing season and keep the soil consistently moist during dry spells, but avoid waterlogging. Apply a balanced, slow-release fertiliser such as Rocky Point Chicken Manure Pellets at planting and again mid-season for optimal growth and flowering.
5. Overwintering curcumas in the garden
In colder climates, once your curcuma plants have yellowed and died back, lift and store the frost-sensitive rhizomes in a warm, dry spot. In subtropical and tropical climates, they can be left dormant in the garden.
6. Popular varieties for curcumas in the garden
- Curcuma alismatifolia and its cultivars (cerise, white, pink, mauve)
- Curcuma longa (culinary turmeric)
- Curcuma australasica (Australian native “Cape York Lily”)
Tip: Lightly trim spent flower spikes to tidy plants and refresh mulch each spring to conserve moisture and suppress weeds.
For further guidance on growing curcumas and similar tropical plants in Australian conditions, visit this resource: Curcuma Growing Guide – Garden Express
