Holly's Homestead — Spice
Galangal
Alpinia galanga · Ginger family
DIFFICULTY Moderate
TYPE Perennial clumping rhizome
MATURITY 10–24 months
TYPE Perennial clumping rhizome
MATURITY 10–24 months
Sun
Part shade to full sun
Water
Regular and humid
Soil pH
5.5–6.5
Spacing
70cm apart
Depth
5cm
01Rhizome and shoots
Greater galangal (Alpinia galanga), used in Thai cooking, grows in a clump that can reach two metres. The pale rhizome has ring markings, and young shoots have a pink tinge.
02Planting
Method
Plant a piece of rhizome with at least two growth buds, buds up, 5cm deep. Sprouting can take several weeks.
Soil
Rich, moist, free-draining soil with lots of compost. Large pots work where space is tight.
Timing
Plant from September to November once soil is warm and frost is no longer a concern.
Source
Buy from a nursery or Asian grocer; make sure it is Alpinia galanga, as “galangal” can also mean lesser galangal.
Planting timing varies significantly by Australian climate zone. Set your zone above (or use the Find My Climate Zone tool) for guidance tailored to your own area.
03Growing care
- Keep soil evenly moist and mulch deeply; it likes humid conditions.
- Give protection from frost and strong wind, which shreds the tall leaves.
- Feed in spring and summer with compost or a balanced organic fertiliser.
- Let the clump expand for a year or two, then dig pieces from the outside.
04Problems
- Frost — tender; leaves blacken and rhizomes rot in cold, wet soil, so protect or grow in pots.
- Rhizome rot — rhizomes turn soft in waterlogged soil; use well-drained soil and do not overwater.
- Slow establishment — plants may take a year or more to give a worthwhile harvest.
- Snails and caterpillars — chew young shoots and leaves; check regularly in spring.
05Harvest & storage
Signs
A clump of 1–2 years old with plump rhizomes. Harvest in autumn or winter, when growth slows.
Method
Dig around the edge of the clump and lift outer rhizomes, leaving the centre to keep growing.
Curing
Brush off soil and let skin dry for a day. Peeling is only needed for cooking; the skin is tough.
Storage
Fresh rhizomes keep 2–3 weeks in the fridge, or slice and freeze for up to 6 months.
Preserving
See Dehydrating (drying galangal slices for storage) for ways to keep a harvest surplus.
06Companions & rotation
Plant nearby
GingerTurmericBananaAvoid nearby
No strong known conflicts
Rotation note
A long-lived clump; replant divisions in fresh ground every 3–4 years, away from other gingers.
