Tatsoi

Silky, spoon-shaped leaves unfurl in a tight rosette, offering a gentle, buttery crunch with a mild, savory tang.

‘Tatsoi’ forms dense clusters of deep green foliage that stay tender through the season, making it a standout for quick, vibrant harvests at about 40 days. Grow it for fresh salads and flavorful stir-ins, or for quick sautéing and braising where its delicate texture shines.

Light: Part SunMaturity: 40 DaysHabit: Rosette

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

Crop Dates

Milestone	Date
Start Indoors	Mar 28th
Last Frost	Apr 25th
Transplant / Sow Outdoors	Apr 18th
Harvest Begins	May 28th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	40
Sun Requirements	Part Sun
Growth Habit	Rosette
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	75
Min Soil Temp (°F)	40
Min Night Temp (°F)	30
Harden Off (days)	6

Culinary Notes

Chef's Note

Tatsoi’s dense, spoony leaves deliver a creamy crunch and a mild, savory tang—then go silky fast when heat hits, so it never needs long cooking. It’s the kind of green that loves bold umami and a whisper of acid: soy + sesame + a tangy vinegar is where it really sings.

Best Uses

raw spoon-salads that hold a vinaigrette without turning bitter
quick stir-fries where it wilts in seconds and stays bright
sauteed or lightly braised greens for a glossy, velvety side
topping for grain bowls and noodle dishes that need a fresh, cooling leaf

Flavor Profile

buttery, mild savoriness gentle tang with a lightly peppery edge silky spoon-shaped leaves tender crunch that turns silk-soft when cooked

Kitchen Pairings

soy sauce sesame oil garlic ginger rice vinegar gochujang

Frequently Asked Questions

What pest or disease commonly affects tatsoi (Eruca vesicaria subsp. sativa), and how can I manage it?

Watch for flea beetles and aphids on tatsoi leaves, which can cause small holes, distortion, and sticky residue. Use row cover early after sowing to block flea beetles, rinse aphids off with a strong water spray, and remove heavily infested leaves; if needed, spot-treat with insecticidal soap following label directions. Keep the planting beds weed-free to reduce hiding spots and improve airflow to lower the risk of foliar fungal issues like downy mildew.

How often should I water tatsoi during the main growing phase?

During active leaf growth, keep the top 1–2 inches of soil consistently moist but not waterlogged—aim for light, regular watering rather than letting it dry out completely. In warm weather, check daily and water when the soil surface starts to dry, since tatsoi quickly suffers from uneven moisture with tougher, more bitter leaves. Water at the soil line to avoid wetting foliage, which helps prevent leaf diseases in Brassicaceae.

How do I know when tatsoi is ready to harvest?

Harvest at about 35–45 days when rosettes are firm and typically 6–10 inches across, with leaves that look smooth and tender rather than stretched. For the best texture, begin cutting outer leaves first (leaving the center crown intact) so the plant can continue producing. Avoid waiting until the plant shows signs of bolting (tall flower stalk), because leaves become stronger-flavored and less crisp once tatsoi is shifting to seed.