When to Plant Stevia in Perth, Mediterranean Guide
Soil temperature is modelled from Open-Meteo forecast (Perth), not a live sensor.
What this month normally looks like in Mediterranean
In October the Mediterranean zone normally runs 22°C by day and 10°C overnight, with about 38 mm of rain over 6 or 7 wet days. The coldest October night on record across the zone was -0.2°C, so a late frost is not out of the question. Averages 1991 to 2026, 19 postcodes, SILO.
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This Stevia guide is written for the Mediterranean zone, which takes in Perth, Adelaide and Bunbury. Somewhere else? Your postcode picks the right one.
Not your zone? Cairns Brisbane Sydney Melbourne Canberra Alice Springs
Also handy: will it frost this week? and what grows in shade.
- Planting window
- Oct to Nov
- Sun
- Full sun to part shade
- Water
- Regular
- Spacing
- 40 cm apart
Stevia is a leafy perennial herb whose leaves taste many times sweeter than sugar. It likes warm, humid places and is frost tender, so cooler gardens grow it in a pot and bring it inside for winter.
Published · By GardenBuddy.au
Planting dates, current conditions and prices on this page update daily.
Photo: Wikimedia Commons
Planting Calendar for Mediterranean
- Jan -
- Feb -
- Mar -
- Apr -
- May -
- Jun -
- Jul -
- Aug -
- Sep -
- Oct T
- Nov T
- Dec -
S = Seed Tray T = Transplant D = Direct Sow
Want a nudge when it is sowing time?
One email a week with what is worth planting in the Mediterranean zone right now, Stevia included, plus which veg has jumped in price at the supermarket. Free, and you can stop it in one click.
How to Grow Stevia in Mediterranean Australia
- Soil
- Fertile, well draining soil (Bunnings, Rob Pyne).
- Salt
- Moderately sensitive. Copes with a little salt, but the harvest drops on salty bore water.
- Sunlight
- Full sun, or part shade with some afternoon shade in a hot summer (Bunnings, Rob Pyne).
- Spacing
- 40cm apart
- Watering
- Keep the soil evenly moist with frequent light watering (Rob Pyne). Water regularly in warm weather so roots do not dry out, and avoid overwatering in the cooler months (Bunnings).
Mediterranean Growing Tips for Stevia
Recommended Varieties
- Stevia rebaudiana
Key Challenges
- Dry summer needs regular water
- Cool wet winter
Pro Tips
- Mulch
- Pot it if the winter is cold
Pests and problems for Stevia in Mediterranean
Harvesting Stevia
When ready: Pick just as plants start to flower, when the leaves are sweetest (Bunnings). Harvest in the morning when sugar content is highest (Rob Pyne).
How to harvest: Cut stems or pick leaves, then rinse well before eating (Bunnings). Cut stems about 2.5 cm above the ground (Rob Pyne).
Storing and preserving stevia
How to keep it
- Drying. Dry whole stems or leaves in a warm, airy place until crisp, then crumble or grind. No Australian source read, so treat as general practice.
What members get
- Soil and weather from your nearest station
- An email when it's time to sow
- Your own garden plan, including planning from a photo
- Price history and price alerts
- Pest risk alerts for your area
- Full salt and canning detail
Common Questions About Stevia
When do you plant stevia in Australia?
It depends on your climate zone, not the calendar month alone. Planting months by zone:
- Tropical (Cairns): Apr to Oct
- Subtropical (Brisbane): Aug to Nov
- Warm Temperate (Sydney): Oct to Nov
- Cool Temperate (Melbourne): Oct to Nov
- Cold / Highland (Canberra): Nov to Dec
- Arid / Semi-Arid (Alice Springs): Sep to Nov
- Mediterranean (Perth): Oct to Nov
Can you grow stevia all year round in Perth?
No. In the Mediterranean zone the planting months are Oct to Nov. Outside that window it either bolts, sulks or gets cut down by the weather.
When should I plant Stevia in Perth?
Plant after frost in spring in a warm spot. Keep roots cool with mulch and water regularly in summer (Bunnings). Best in a pot. No regional source.
How do I know when Stevia are ready to harvest?
Pick just as plants start to flower, when the leaves are sweetest (Bunnings). Harvest in the morning when sugar content is highest (Rob Pyne).
What are the best Stevia varieties for Perth?
Recommended varieties for the Mediterranean zone include: Stevia rebaudiana.
Are stevia salt tolerant?
Only a little. Stevia are moderately sensitive to salt, so the harvest drops on salty bore water. Mix salty water with rainwater, and mulch the bed.
Which zone am I in?
Type your postcode into the box near the top of the page and it 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 Mediterranean zone, Perth is its reference city.