Leafy green · reference page

Kale

A robust leafy brassica that favours cool to mild weather and can be harvested a few leaves at a time.

Brassica oleracea var. sabellica

Editorial guidance; no independent agronomic review claimed

Direct-sun reference
About 5 hours
Usable root depth
About 30 cm
Editorial cycle
55–100 days to first harvest
Care
Straightforward care

Getting started

Sowing and space

Direct-sow or transplant, leaving enough airflow and mature leaf space.

The cycle is an editorial band linked to the method above. Cultivar, temperature, transplant age and the harvest stage can change it.

Allow about 30 cm of usable depth and roughly 45 cm between plants. A suitably sized container can work when the full root volume and mature canopy are allowed.

Water demand is moderate and regular. That is not a fixed timetable: heat, wind, rain, container size and growth stage change the interval.

Planting windows by broad profile

The highlighted months are conservative editorial references, not a current forecast or postcode calendar. Confirm the cultivar, packet, current warning and local advice.

Tropical wet–dry

JanFebMarAprMayJunJulAugSepOctNovDec

Heat and humidity shorten the useful leaf-harvest period.

Humid subtropical

JanFebMarAprMayJunJulAugSepOctNovDec

Hot and arid

JanFebMarAprMayJunJulAugSepOctNovDec

Use the cool season and protect seedlings from hot wind.

Warm temperate

JanFebMarAprMayJunJulAugSepOctNovDec

Cool temperate

JanFebMarAprMayJunJulAugSepOctNovDec

Practical care

  • Harvest lower leaves while retaining the growing centre.
  • Inspect folded leaves and undersides for caterpillars.

Points to check

  • Heat can toughen leaves and accelerate pests.
  • Large mature plants need more root volume than baby-leaf crops.

Provenance and confidence

This rule is editorial guidance without claimed independent agronomic review. Confidence describes evidence coverage, not the chance of a harvest.