When to plant Tatsoi in Arid Australia

Arid zone — applies to Alice Springs, Mildura, Broken Hill, Kalgoorlie, Port Augusta and similar areas. Growing elsewhere? Temperate · Cool · Subtropical · Tropical.

Sow tatsoi direct from March to August, scattering seed just 5 mm deep into moist, cool soil. It germinates fast, in 4–7 days, and forms its glossy rosettes ready to pick in a quick 45–60 days, so autumn and winter sowings give arid gardeners a steady run of mild Asian greens. Thin to 20–25 cm apart with rows around 30 cm, or harvest young for cut-and-come-again leaves. Hardy and heat-shy, tatsoi is ideal for the cool half of the year in Alice Springs and Mildura, where cold nights slow bolting and keep the leaves tender and sweet.

Sowing calendar — arid zone

Green months are your sowing window: March to August.

Growing notes

Tatsoi is one of the easiest cool-season greens for the desert, prized for fast growth and cold tolerance. Sow it direct in succession every few weeks through the cool months for a continuous supply, and keep the soil evenly moist — quick, unchecked growth is what gives you tender leaves rather than tough, bitter ones.

The main failure mode is bolting: sown too late or hit by a warm spell, tatsoi runs to seed fast and the leaves turn peppery and coarse. Stick to the March to August window, favour the depths of winter for the sweetest crops, and get plants harvested before the first real spring heat in Broken Hill and Port Augusta. Shade cloth over a late sowing can buy a little extra time.

As a brassica, tatsoi can attract cabbage white caterpillars and flea beetle, though pest pressure is lower in cool arid conditions than in humid zones. If caterpillars appear, drape light exclusion netting over the bed to keep the moths off, or pick the caterpillars by hand on a small patch. Water at the base to keep foliage dry, harvest outer leaves as you need them, and the plant will keep producing from the centre for weeks before it eventually bolts.

Tatsoi at a glance

Common questions

how fast does tatsoi grow

Tatsoi is quick, germinating in 4 to 7 days and ready to harvest in about 45 to 60 days. You can also pick young leaves earlier for cut-and-come-again salads.

why is my tatsoi bolting

Bolting is triggered by heat or sowing too late in the season. Keep to autumn and winter sowings in arid zones, harvest before spring warms up, and use shade cloth to protect late crops.

when to plant tatsoi in Alice Springs

Sow tatsoi direct from March to August in Alice Springs, favouring the coldest months for the sweetest, slowest-bolting leaves. Sow in succession every few weeks for a continuous supply.

do I need to protect tatsoi from pests

As a brassica, tatsoi can attract cabbage white caterpillars and flea beetle. Drape light exclusion netting over the bed to keep moths off, though pest pressure is generally lower in cool, dry arid conditions.

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