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Tatsoi

Brassica rapa var. narinosa

Also called Rosette pak choi, Spoon mustard and Tah tsai

Garden plant · Herbs, veg & fruit

It grows FLAT — a rosette of dark spoon-shaped leaves pressed to the ground like a dinner plate — and it is the hardiest of the oriental greens, standing under snow. Sow in August for winter picking.

Care at a glance

Ease
Easy
Water
Every 2 daysWater the ground — water at the base, in the morning, not over the leaves.
Light
Sun, part shade in high summer
Feed
Every 21 days
Humidity
Average
Hardiness
Hardy — a cold winter RHS H5, to -15°C
Size
0.15 m tall · 0.3 m across
Lifecycle
Annual
Origin
China

Is it safe for pets and people?

PetsNothing recorded against it

No animal-poison authority lists this plant either way.

PeopleNot checked yet

Nobody has checked this one against a source for us yet, so treat it as unknown rather than safe.

Checked against ASPCA and RHS on 2026-09-21. Where a source says nothing, we say nothing.

A guide, not veterinary or medical advice. If a pet or a person has eaten a plant and you are worried, call your vet or doctor now — don’t wait for signs to appear. Spotted a mistake? Tell us.

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