When to Plant Sweet Marjoram in Alice Springs, Arid / Semi-Arid Guide

Sow July to September. Right now in September you can sow.

This Sweet Marjoram guide is written for the Arid / Semi-Arid zone, which takes in Alice Springs, Broken Hill and Port Augusta. Somewhere else? Your postcode picks the right one.

Not your zone? Cairns Brisbane Sydney Melbourne Canberra Perth

Also handy: will it frost this week? and what grows in shade.

Sweet Marjoram

Photo: Wikimedia Commons

A tender perennial (grown as annual in cold zones) closely related to oregano but with a sweeter, more delicate flavour. Essential in French and Mediterranean cooking. More cold-sensitive than oregano. Forms a compact bushy plant to 30-40cm. Often confused with oregano but the flavour is distinctly different.

Planting Calendar for Arid / Semi-Arid

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
- - - - - - S T/D T/D - - -

S = Seed Tray   T = Transplant   D = Direct Sow

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Current Growing Conditions

Soil temperature: 22.7°C (optimal range: 10–25°C) ✓ Ready to plant

Modelled from Open-Meteo forecast (Alice Springs), not a live sensor.

How to Grow Sweet Marjoram in Arid / Semi-Arid Australia

When to Plant

Plant Mar-May and Aug-Oct.

Soil
Well-drained, light soil with some organic matter. Not as lean as oregano prefers.
pH Range
6.5-7.5
Sunlight
Full sun. At least 6 hours.
Spacing
20cm apart, 30cm between rows
Watering
Moderate. More water-needy than oregano but still prefers drying between waterings.

Companion plants: Most vegetables, Other Mediterranean herbs

Arid / Semi-Arid Growing Tips for Sweet Marjoram

Recommended Varieties

  • Standard sweet marjoram

Key Challenges

  • Extreme heat
  • Needs some moisture

Pro Tips

  • Better with some afternoon shade
  • More water-needy than oregano

Harvesting Sweet Marjoram

When ready: Harvest once plant is bushy at 15cm+. Best just before flowering.

How to harvest: Snip stems above leaf pair. Regular harvesting delays flowering.

Common Sweet Marjoram Pests in Arid / Semi-Arid Zones

Aphids and Powdery Mildew, risk: MODERATE (score: 40/100)

Organic prevention: Healthy plants in full sun.

View all pest alerts →

Where to next

Also worth sowing in the arid and semi-arid zone this September: Ginger, Chilli Peppers, Lemongrass and Beetroot.

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Common Questions About Sweet Marjoram

When do you plant sweet marjoram in Australia?

It depends on your climate zone, not the calendar month alone. Planting months by zone:

Does sweet marjoram grow all year round in Alice Springs?

No. In the Arid / Semi-Arid zone the planting months are Jul to Sep. Outside that window it either bolts, sulks or gets cut down by the weather.

Which zone am I in?

Type your postcode into the box under the heading and the page tells you, and links this crop in your own zone if it differs. Or look it up on the grow zone map. This page is the Arid / Semi-Arid zone, Alice Springs is its reference city.