Rosette

Family: Brassicaceae Leafy Green

Silky rosettes unfurl in tight, velvety layers, catching the light with a cool, deep-green sheen that feels almost satin to the eye.

Rosette tatsoi offers a mild, pleasantly tangy flavor with tender, spoonable leaves—ideal for stir-fry-style tosses, quick sautés, or gentle steaming, and it shines in fresh salads where its delicate texture stays crisp. Grow it for early, dependable harvests at about 35 days, when the plants are compact, uniform, and beautifully rosette-formed.

Light: Part SunMaturity: 35 DaysHabit: Rosette

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

Milestone	Date
Start Indoors	Direct Sow
Last Frost	Apr 25th
Transplant / Sow Outdoors	Apr 25th
Harvest Begins	May 30th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	35
Sun Requirements	Part Sun
Growth Habit	Rosette
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	45
Min Soil Temp (°F)	40
Min Night Temp (°F)	30
Harden Off (days)	5

Culinary Notes

Chef's Note

Rosette tatsoi is built for speed: its tight, tender leaves wilt fast and stay spoonable instead of turning chewy. Use it with sharp, salty partners (soy/vinegar) and aromatic heat (ginger/chili) so the mild tang reads clearly on the palate.

Best Uses

quick wok tosses where it wilts but stays glossy
gentle sauté or steaming to keep the leaves silky and spoonable
fresh salads where it holds a crisp, delicate crunch
fast pan-finish with butter or sesame oil for a glossy sheen

Flavor Profile

mild, gently tangy bite tender spoonable leaves cool, silky mouthfeel that cooks quickly without getting fibrous subtle brassica savor with a clean finish

Kitchen Pairings

sesame oil ginger soy sauce rice vinegar chili crisp scallion

Frequently Asked Questions

What pest or disease is most common on tatsoi (Brassica rapa var. narinosa), and how do I treat it?

Flea beetles are a top problem on tatsoi, causing small shot-like holes in leaves, especially in warm weather. Cover seedlings with lightweight row cover immediately after sowing and keep it on until plants are established; if damage starts, use insecticidal soap and remove heavily affected leaves to reduce buildup. Watch for clubroot-like wilting only in persistently acidic, poorly drained spots—avoid planting in the same bed and keep soil well-drained and lime only if a soil test indicates low pH.

How often should I water tatsoi during the main growing phase, and what soil moisture level should I aim for?

Keep tatsoi beds consistently evenly moist from emergence through leaf thickening, watering about 1–2 times per week depending on heat and soil texture. Aim for soil that stays moist 1–2 inches down but never waterlogged; Brassica rapa var. narinosa will slow down and taste can turn stronger if it experiences drying cycles.

How can I tell when tatsoi is ready to harvest?

Harvest when rosettes reach about 6–8 inches across and leaves are tender, typically around 35 days from sowing. Pick outer leaves first for ongoing harvest, or cut the whole rosette at the base once the center is filled but before leaves become tough or overly thick. Avoid delaying in hot weather, since tatsoi can bolt and leaves become more bitter.