Vegetable · Tropical rhizome
Ginger
Zingiber officinaleA slow, tropical rhizome that needs a very long, warm growing season to bulk up underground — most temperate gardeners grow it in a large pot so it can come indoors before the cold arrives. Sprouting starts months before the ground outside is even workable. The one rule: never let it sit in cold or waterlogged soil, which turns the rhizome to mush.
Sow depth
2 in (rhizome depth)
Spacing
8 in apart
Sun
Full sun or part shade
Germination
N/A — planted as rhizomes
Time to harvest
240–300 days
Difficulty
Challenging
When to sow ginger
- Sow from about 8 weeks before your last expected frost until about 6 weeks before your last expected frost.
Start indoors — soak rhizome pieces overnight, then plant 6–8 weeks before last frost.Bury pieces 2 in deep in rich, well-draining potting mix, buds facing up.Keep warm (21–27°C) and humid; sprouts can take two to six weeks to appear.
Never let it dry out or sit soggy — both extremes invite rhizome rot.Move outdoors, or into a larger pot, only once nights stay above 13°C.Feed lightly through the season; ginger is a modest but steady feeder.
Dig or tip out pots once foliage yellows and dies back in autumn.Harvest a little "baby" ginger early if wanted — it is milder and thin-skinned.Cure mature rhizomes in a warm, airy spot for a week before storing.
Companion plants
Turmeric and lemongrass share ginger’s love of warmth, humidity, and part shade, making them natural bed-mates in the same sheltered spot.
Watch out for
Rhizome rot — Sets in fast in cold or waterlogged soil. Plant in free-draining mix and water sparingly until growth is vigorous.Aphids — Cluster on new shoots and undersides of leaves. Rinse off with a strong water jet or wipe down with insecticidal soap.