Australian planting calendar
What to plant in December in a Subtropical garden
Explore 58 core planting options for December in the Subtropical zone, with practical garden jobs and links to our growing guides.
These are broad climate-zone windows. Local weather, frost, soil conditions and your garden’s microclimate can shift timing. Check the plant guide before starting.
Not sure which zone applies? Find your zone before using this calendar. Want this tailored to your garden? Save your plants in My Garden.
Core planting options
The planting method matters: sowing seed and planting seedlings, tubers or nursery plants are different jobs. “Sow” means the underlying source does not specify direct sowing or trays.
Edible flowers
Alyssum
Sow
Core planting window: Jan-Apr,Aug-Dec
How to grow alyssumLeafy greens
Amaranth
Sow
Core planting window: Jan–Mar, Aug–Dec
How to grow amaranthHerbs
Anise
Sow
Core planting window: Jan-Feb,Sep-Dec
How to grow aniseLegumes
Asparagus pea
Sow direct
Core planting window: Jan-Apr,Aug,Oct-Dec
How to grow asparagus peaHerbs
Basil
Sow
Core planting window: Aug-Feb
How to grow basilPods & fruit
Beans (bush/French)
Sow
Core planting window: Aug-Apr
How to grow beans (bush/french)Tropical & subtropical edibles
Bitter melon
Sow
Core planting window: Jan,Aug-Dec
How to grow bitter melonRoots & bulbs
Burdock
Sow
Core planting window: Jan–May, Aug–Dec
How to grow burdockFruiting crops
Cape gooseberry
Sow
Core planting window: Jan–Mar, Jul–Dec
How to grow cape gooseberryPods & fruit
Capsicum
Sow
Core planting window: Aug-Feb
How to grow capsicumPods & fruit
Chilli
Sow
Core planting window: Jul-Mar
How to grow chilliHerbs
Chives
Sow
Core planting window: All year
How to grow chivesLegumes
Climbing beans
Sow
Core planting window: Jan–Mar, Aug–Dec
How to grow climbing beansEdible flowers
Cornflower
Sow
Core planting window: Jan-May,Nov-Dec
How to grow cornflowerPods & fruit
Cucumber
Sow
Core planting window: Jul-Mar
How to grow cucumberHerbs
Dandelion
Sow
Core planting window: Jan-Feb,Sep-Dec
How to grow dandelionFruit
Dragon fruit
Plant rooted cutting / nursery stock
Core planting window: Sep–Apr
How to grow dragon fruitPods & fruit
Edamame
Sow direct
Core planting window: Aug–Mar
How to grow edamamePods & fruit
Eggplant
Sow
Core planting window: Aug-Mar
How to grow eggplantEdible flowers
French marigold
Sow
Core planting window: Jan–Feb, Jul–Dec
How to grow french marigoldLeafy greens
Garden cress
Sow
Core planting window: All year
How to grow garden cressTropical & subtropical edibles
Ginger
Plant rhizomes
Core planting window: Jan-Mar,Oct-Dec
How to grow gingerHerbs
Hyssop
Sow
Core planting window: Jan-Feb,Sep-Dec
How to grow hyssopLeafy greens
Ice plant
Sow
Core planting window: Jan-Feb,Aug-Dec
How to grow ice plantPods & fruit
Lablab
Sow direct
Core planting window: Aug–Mar
How to grow lablabHerbs
Lavender
Sow
Core planting window: Jan-Feb,Aug-Dec
How to grow lavenderLeafy & brassicas
Lettuce
Sow
Core planting window: All year
How to grow lettuceLegumes
Lima bean
Sow
Core planting window: Jan-Apr,Aug-Dec
How to grow lima beanHerbs
Liquorice root
Sow
Core planting window: Jan-Feb,Aug-Dec
How to grow liquorice rootHerbs
Lovage
Sow
Core planting window: Jan-Feb,Sep-Dec
How to grow lovageFruiting crops
Luffa
Sow
Core planting window: Jan, Aug–Dec
How to grow luffaLeafy greens
Malabar spinach
Sow direct / transplant seedlings
Core planting window: Sep–Mar
How to grow malabar spinachFruiting crops
Marrow
Sow
Core planting window: Jan-Mar,Aug,Oct-Dec
How to grow marrowPods & fruit
Mung bean
Sow direct
Core planting window: Sep–Feb
How to grow mung beanLeafy greens
Mustard greens
Sow
Core planting window: All year
How to grow mustard greensFruiting crops
Okra
Sow
Core planting window: Jan–Feb, Aug–Dec
How to grow okraFruit
Papaya
Plant nursery stock
Core planting window: Sep–Mar
How to grow papayaLegumes
Peanut
Sow
Core planting window: Jan,Aug-Dec
How to grow peanutPods & fruit
Pigeon pea
Sow direct
Core planting window: Aug–Mar
How to grow pigeon peaHerbs
Plantain
Sow
Core planting window: Jan-Mar,Aug-Dec
How to grow plantainPods & fruit
Pumpkin
Sow
Core planting window: Aug-Mar
How to grow pumpkinLeafy greens
Purslane
Sow
Core planting window: Jan-Mar,Aug-Dec
How to grow purslaneRoots & bulbs
Radish
Sow
Core planting window: All year
How to grow radishFruiting crops
Rockmelon
Sow
Core planting window: Jan, Aug–Dec
How to grow rockmelonTropical & subtropical edibles
Rosella
Sow
Core planting window: Jan-Feb,Aug-Dec
How to grow rosellaRoots & bulbs
Salsify
Sow direct
Core planting window: Jan-Apr,Aug,Oct-Dec
How to grow salsifyLeafy & brassicas
Silverbeet
Sow
Core planting window: All year
How to grow silverbeetFruiting crops
Squash
Sow
Core planting window: Jan–Feb, Aug–Dec
How to grow squashEdible flowers
Sunflower
Sow
Core planting window: Jan–May, Aug–Dec
How to grow sunflowerPods & fruit
Sweet corn
Sow
Core planting window: Aug-Feb
How to grow sweet cornRoots & tubers
Sweet potato
Plant slips / rooted cuttings
Core planting window: Oct–Jan
How to grow sweet potatoBerries & compact fruit
Tamarillo
Sow
Core planting window: Aug-Dec
How to grow tamarilloTropical & subtropical edibles
Taro
Plant corms / suckers
Core planting window: Oct-Dec
How to grow taroPods & fruit
Tomato
Sow
Core planting window: Aug-Mar
How to grow tomatoRoots & bulbs
Turnip
Sow
Core planting window: Jan–May, Aug–Dec
How to grow turnipLegumes
Winged bean
Sow
Core planting window: Jan,Nov-Dec
How to grow winged beanLegumes
Yardlong bean
Sow
Core planting window: Jan-Apr,Aug-Dec
How to grow yardlong beanPods & fruit
Zucchini
Sow
Core planting window: Aug-Feb
How to grow zucchiniPossible / shoulder planting options
These sit at the edge of the planting window and need more care with local conditions. They are kept separate from the core options.
Leafy greens
Chinese cabbage
Sow
Core planting window: Jul–Aug
How to grow chinese cabbageLeafy greens
Mizuna
Sow
Core planting window: Mar–May
How to grow mizunaEdible flowers
Nasturtium
Sow
Core planting window: Feb–Sep
How to grow nasturtiumHerbs
Oregano
Sow
Core planting window: Mar–Apr, Aug–Oct
How to grow oreganoHerbs
Sage
Sow
Core planting window: Aug–Nov
How to grow sageFruiting crops
Tomatillo
Sow
Core planting window: Aug–Oct
How to grow tomatilloFruiting crops
Watermelon
Sow
Core planting window: Aug–Nov
How to grow watermelonIn the garden in December
Use these jobs when the stated conditions apply in your garden.
Water in the morning
When watering is needed, favour the early morning and direct water towards the roots with a suitable drip system or soaker hose.
When this applies: During summer heat when soil needs water; this is not a wet-season watering schedule.
Check mulch cover
Maintain suitable mulch to reduce moisture loss, moderate root temperature and suppress weeds.
When this applies: Assess existing cover and conditions before adding more.
Keep feet off garden beds
Use paths when tending the garden to avoid compacting soil around roots.
When this applies: A general care practice highlighted in the summer source, not unique to this season.
Year-round care
Check before watering
Check moisture around the roots and the rain forecast before watering. Water only where needed and follow local watering rules.
When this applies: Use the soil and plant needs to guide watering, rather than a fixed calendar interval.
How to do it
Water the roots, without wasting water
Only when the root area needs water. Prefer early morning, subject to local restrictions. Seeds and young plants need closer checks than established plants.
Water and feed container plants
Check regularly during active growth, especially in hot or windy conditions.
Check and top up garden mulch
When cover has thinned or bare soil needs protection. Assess what is already there before adding another layer.
Improve compacted garden soil
When an empty bed is moist and workable, never saturated.
Keep paths and bed edges accessible
During routine checks and after wind or rain.
Decide whether your plant needs water
Before watering, after useful rain, and more often when plants are young or weather is hot or windy. This is a check, not a fixed watering schedule.
Sources and timing
Planting windows come from The Garden Hand’s existing planting calendar. Follow each plant link for its full growing guide. Garden jobs retain their existing zone, month and condition rules; year-round care is shown separately.
- Beat the heat: must-know tips for summer gardening in the tropics
© State of Queensland. Adapted and abridged from the named article; sourced 17 September 2026. No endorsement implied.
CC BY 4.0 - Waterwise gardening: Watering
© The State of Queensland. Adapted and abridged; sourced 17 September 2026. No endorsement implied.
CC BY 4.0