Safe to Plant

Endive · Acheng, Heilongjiang, China

When to plant endive in Acheng

Main outdoor window

15 Apr - 6 May

The window this page is built around.

Timed from last spring frost

29 April

In Acheng, on your chosen risk.

Ready to pick

1 Aug - 30 Nov

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 Acheng

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.

Start indoors

18 Mar - 8 Apr

Six weeks before your last frost, under cover or on a windowsill.

Sow direct

13 May - 3 Jun

Two weeks after your last frost.

Sow direct

15 Apr - 6 May

Two weeks before your last frost.

Harvest

1 Aug - 30 Nov

Sow in succession. A single sowing gives you a single glut. Sow a short row every 21 days through the window above and you get a steady supply instead.
Frost tolerance
Hardy
Damaged below
-6°C (21.2°F)
Days to maturity
80–100
Min soil temp
7°C (44.6°F)
Spacing
30 cm
Sowing depth
6 mm (0.2 in)
Sun
Full

Endive through the year

Against the frost risk in Acheng

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Frost risk Start indoors Autumn sowing Sow direct Plant out Harvest Today

Why these dates

Sow from two weeks after the last frost through midsummer for autumn heads. Early sowings bolt, so this is one to hold back rather than rush.

Hardy to about -6C, and blanching heads under a pot also shelters them from the first frosts.

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. Endive are timed from 6 weeks before that frost for an indoor start, with planting out 2 weeks before it, and this page simply resolves those offsets against the frost date computed for Acheng.

The median frost-free season here is 159 days, against 80 to 100 days to maturity for this crop counted from sowing. That margin is what decides whether a late sowing is worth attempting.

See every crop timed for Acheng →

Growing endive in Acheng

When should I plant endive in Acheng?

Aim for 15 Apr - 6 May in an average year. If you would rather not gamble on the weather, wait until 24 Apr - 15 May - by then frost has finished in nine years out of ten.

When will endive be ready to harvest in Acheng?

Expect to start picking around 1 Aug - 30 Nov, based on 80 to 100 days to maturity from the planting date calculated for this location.

How much frost will endive tolerate?

Hardy to about -6C, and blanching heads under a pot also shelters them from the first frosts.