When to plant Candytuft in Tropical Australia
Tropical zone — applies to Darwin, Cairns, Townsville, Broome, Mackay and similar areas. Growing elsewhere? Temperate · Cool · Subtropical · Arid.
Sow candytuft direct from March to June, covering the seed 5 mm deep as the wet season winds down. This autumn-into-dry window gives Cairns and Mackay gardens the cooler, drier weather this low, flat-headed annual needs to perform. Seed germinates in 14 to 21 days, and plants reach full flower in 80 to 100 days. Thin or space seedlings 25 cm apart with 25 cm between rows for a solid carpet of bloom. Choose a sunny, free-draining bed, because candytuft sulks and rots in heavy, waterlogged ground.
Sowing calendar — tropical zone
Green months are your sowing window: March to June.
Growing notes
Candytuft is a compact, spring-flowering annual grown for its dense heads of white, pink, or lilac bloom. In the tropics it is a dry-season plant only, since it cannot cope with the humidity and rain of the wet.
The defining failure is root rot and fungal collapse in damp conditions. Plants sitting in wet, humid air rot at the base and go from healthy to slime within days. Grow candytuft in raised, gritty beds, water sparingly at the soil line, and give it the openest, sunniest position you have so foliage dries quickly after any rain.
It is otherwise easy and undemanding. Poor to average soil suits it, and heavy feeding just produces soft, disease-prone growth, so keep fertiliser light. Deadhead spent flower heads to extend the display and stop the plant putting energy into seed too early. In Townsville and Darwin, sow early in the dry so the crop flowers and finishes before humidity builds again, rather than trying to nurse plants into the pre-wet weather. Snails favour the tender seedlings, so keep the bed clear of hiding places and check after any shower in the first few weeks.
Candytuft at a glance
| Sowing depth | 5 mm |
|---|---|
| Plant spacing | 25 cm |
| Row spacing | 25 cm |
| Germination | 14-21 days |
| Days to maturity | 80-100 days |
| Frost tolerance | Hardy |
| Method | Raise Seedlings,Sow Direct |
Common questions
- when should I sow candytuft in the tropics?
- Sow from March to June as the wet season ends. This gives the cooler, drier weather candytuft needs to flower well over 80 to 100 days before humidity returns.
- why is my candytuft rotting at the base?
- Root rot from wet, humid conditions. Grow it in a raised, gritty, free-draining bed, water at the soil line rather than overhead, and give it full sun so foliage dries quickly.
- does candytuft need rich soil?
- No. Poor to average soil suits it, and heavy feeding produces soft, disease-prone growth. Keep fertiliser light for the sturdiest plants and best flowering.
- how do I make candytuft flower for longer?
- Deadhead spent flower heads regularly so the plant keeps producing new blooms rather than setting seed early. In the tropics, sowing early in the dry also lengthens the display.
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