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Sign up freeBrassica rapa var. perviridis
Japanese mustard spinach. Fast-growing, very cold-hardy. Mild mustard flavour. Both leaves and stems edible. Cut-and-come-again.
Brassica juncea (Red)
vegetable
A fellow Brassicaceae — similar growing habits to Komatsuna
Start Komatsuna indoors about 4 weeks before your last frost, keeping seeds in cooler soil (around 10–18 °C). Seeds usually come up in around 7 days. Move seedlings out once the danger of frost has passed, in partial sun, spaced about 20 cm apart. Expect to harvest in roughly 40 days.
Komatsuna seed rarely stays viable beyond 3 years — track what's still worth sowing.
Water: Medium · Height: 30 cm · Soil: Moist, fertile, well-draining
Chrysopidae
Golden-eyed adults that mostly drink; larvae that hunt like small alligators.
Aleyrodidae
A puff of white when you brush the leaf, and stickiness underneath.
These three thrive alongside Komatsuna — and alongside each other.
