Tatsoi · La Pintana, Santiago Metropolitan, Chile
When to plant tatsoi in La Pintana
Main outdoor window
24 Aug - 21 Sep
The window this page is built around.
Timed from last spring frost
14 September
In La Pintana, on your chosen risk.
Ready to pick
29 Oct - 30 May
If you plant at the start of the window.
The average last frost. Half of all years are later than this.
Step by step in La Pintana
Each window is a range, not a single day. Earlier in the range buys you a longer season; later in it buys you a safer one.
Sow for overwintering
13 Mar - 3 Apr
Counting back 64 days from your first frost so the crop matures in time.
Sow direct
24 Aug - 21 Sep
Three weeks before your last frost.
Harvest
29 Oct - 30 May
Tatsoi through the year
Against the frost risk in La Pintana
Why these dates
Sow from three weeks before the last frost, and again in late summer for the crop that matters. Autumn sowings hold in good condition for weeks.
Hardy to about -8C and often found still green under snow, the low rosette acting as its own insulation.
Seed packets and extension guides express timing as weeks either side of the last spring frost, because that is the only reference point that travels. Tatsoi are timed for direct sowing 3 weeks before it, and this page simply resolves those offsets against the frost date computed for La Pintana.
The median frost-free season here is 265 days, against 40 to 50 days to maturity for this crop counted from sowing. That margin is what decides whether a late sowing is worth attempting.
Also in La Pintana
Other vegetables to time
Growing tatsoi in La Pintana
When should I plant tatsoi in La Pintana?
Aim for 24 Aug - 21 Sep in an average year. If you would rather not gamble on the weather, wait until 14 Sep - 12 Oct - by then frost has finished in nine years out of ten.
When will tatsoi be ready to harvest in La Pintana?
Expect to start picking around 29 Oct - 30 May, based on 40 to 50 days to maturity from the planting date calculated for this location.
How much frost will tatsoi tolerate?
Hardy to about -8C and often found still green under snow, the low rosette acting as its own insulation.