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Calendula recommendations tuned for Melbourne, Australia timing.No CC image available yet.

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Plant profile

Calendula

Scientific: Calendula officinalisFrost: Frost HardyHardiness: HardyType: Mixed

Best month to plant in Melbourne (AU Zone 5): March

It's currently Autumn in Melbourne; perfect time to prep your calendula bed.

Vital Stats

Sowing depth: 1-2 cm

Spacing: 25-40 cm

Sun: Full Sun

Water: Moderate, increase in heatwaves

Growth Cycle

Germination: 7-21 days

Maturity: 70-140 days

Companions: Alyssum, Basil, Nasturtium

Climate-Specific Warnings

Local Climate Note

Guidance is tuned to Melbourne (AU Zone 5). Keep drainage, airflow, and frost timing aligned with current seasonal conditions.

Cheat Sheet

Sun

Full Sun

Water

Moderate, increase in heatwaves

Soil pH

6.0-7.0

Pro Tip

Sow in short intervals and observe soil temperature to improve consistency across seasons.

Popular Cultivars

Cut-flower selections: Typically bred for longer stems and improved vase life.
Dwarf border selections: Better suited to edging, pots, and wind-exposed sites.

Nearby Natives: Perfect for Your Local Soil

Zone 5 logic is active for your location, so these native plants are prioritized for resilient local performance.

Kangaroo Paw

Anigozanthos flavidus

Grevillea

Grevillea rosmarinifolia

Lomandra

Lomandra longifolia

How to Plant

Prepare a loose, compost-enriched seed bed or tray mix.
Sow at the listed seasonal window for Melbourne conditions.
Keep moisture even until seedlings establish.

Ongoing Care

Mulch early to stabilize root-zone moisture and temperature.
Feed lightly during active growth using balanced fertilizer.
Thin or prune as needed for airflow and vigor.

Troubleshooting Pests

Aphids: wash off with water and monitor weekly.
Fungal pressure: water at soil level and improve spacing.
Heat stress: add temporary shade and increase deep watering.

Seasonality Bar (Melbourne context)

Toggle between yearly month-grid planning and a compact timeline with stage-specific tasks.

SowGrowHarvestCurrent month marker

Sow

Grow

Harvest

May focus (current month)

Sow + Grow

Start seeds in trays at about 1-2 cm depth, then transplant with around 25-40 cm spacing. Keep light and airflow consistent in Melbourne.

Climate Logic

Use March as the primary Melbourne sowing window and adjust for local microclimate.

Best month by AU/NZ band

Temperate: March
Mediterranean: April
Subtropical: May
Tropical: June
Cool: April

Advanced Climate Logic

Live BOM Soil Moisture Percentile

Live BOM signal is currently unavailable. Continue using the baseline guidance below.

Melbourne Microclimates

Coastal Melbourne sites (for example St Kilda) are usually milder overnight; use lighter mulch (3-4 cm) to avoid keeping root zones too cool and wet.
In colder inland valleys (for example Yarra Valley), frost hangs longer; use thicker mulch (6-8 cm through winter) and in frost-prone pockets, keep tray sowing shallow and delay transplanting by 1-2 weeks.

La Nina / El Nino Adjustments

When BOM flags a wetter La Nina phase, reduce automatic watering and skip irrigation after meaningful rainfall to avoid root stress.
When BOM flags a drier El Nino phase, increase deep watering intervals and thicken mulch to hold soil moisture for longer.

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