How to grow oregano in Australia
Oregano is the fourth of the Mediterranean herb essentials, alongside rosemary, thyme, and sage. It's the most productive of them — a single plant produces armfuls of leaves every year and spreads sideways to cover a substantial area. The flavour intensifies in dry conditions; oregano grown in too-rich, too-wet soil produces lush leaves with diluted flavour. Sun, dry feet, and not much else — that's oregano.
When to plant
Oregano is perennial in all Australian climates. Plant in spring or autumn.
April to August in the dry season.
March to September.
Year-round.
September to May. Dies back to ground in winter; re-emerges in spring.
October to April. Dormant through winter.
Year-round.
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Open the full planting calendar →How to plant
Oregano is grown from seedlings, cuttings, or division.
Spacing: 30–40cm between plants. Mature plants spread to 40–60cm wide.
Depth: Plant at the same depth as the seedling.
Drainage: Critical, same as the other Mediterranean herbs.
Soil: Free-draining, slightly alkaline soil. Don't enrich with manure or rich compost — flavour suffers in too-rich soil.
Pots, raised beds, or in-ground?
Oregano works in all three options with drainage.
In-ground suits oregano well — the spreading habit makes it useful as ground cover in dry areas.
Raised beds are ideal — drainage matters.
Pots suit oregano excellently. A 25cm pot supports a productive plant for years. Wide rather than deep is preferred — oregano spreads horizontally. Group with the other Mediterranean herbs.
Sunlight & water
Full sun — 6 to 8 hours daily.
Water sparingly. Drought-tolerant once established.
When and how to harvest
Cut stems as needed. Best flavour is just before flowering. Cut back hard after flowering to encourage new tender growth.
Dries exceptionally well — hang stems in a ventilated spot. Dried oregano often has more concentrated flavour than fresh.
Common problems
Root rot in wet soil — same as other Mediterranean herbs. Drainage is everything.
Spreading more than wanted — oregano sends out shoots that can spread beyond the planting area. Less aggressive than mint but worth monitoring. Pots prevent this completely.
Becoming sparse and woody with age. Cut back hard or divide every 3–4 years.
Companion planting
Plant near: Rosemary, thyme, sage (Mediterranean group), tomato, capsicum, beans.
Keep away from: Plants that need consistently moist soil — oregano prefers dry conditions.
Australian varieties
Greek Oregano (Origanum vulgare hirtum) — The premium culinary variety. Strong flavour. The standard for Italian and Greek cooking.
Common Oregano (Origanum vulgare) — Slightly milder flavour. Widely available.
Italian Oregano — Hybrid variety with strong culinary flavour. Slightly less hardy than Greek oregano.
Marjoram (Origanum majorana) — Related species, more delicate flavour, slightly less hardy. Worth growing alongside oregano for kitchen variety.
Golden Oregano — Yellow-leafed ornamental variety. Mild flavour. Decorative.
Pet safety
Pet safety information is provided as a general guide only. If your pet has consumed any plant material, contact your vet or the Animal Poisons Helpline on 1300 869 738 immediately.