Safe to Plant

Kai-lan · Rostov-on-Don, Rostov, Russia

When to plant kai-lan in Rostov-on-Don

Main outdoor window

21 Apr - 5 May

The window this page is built around.

Timed from last spring frost

7 April

In Rostov-on-Don, on your chosen risk.

Ready to pick

1 Jul - 31 Oct

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 Rostov-on-Don

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 direct

21 Apr - 5 May

Two weeks after your last frost.

Harvest

1 Jul - 31 Oct

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
Half-hardy
Damaged below
-4°C (24.8°F)
Days to maturity
50–70
Min soil temp
10°C (50°F)
Spacing
30 cm
Sowing depth
10 mm (0.4 in)
Sun
Full

Kai-lan through the year

Against the frost risk in Rostov-on-Don

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

Frost risk Sow direct Harvest Today

Why these dates

Sow from two weeks after the last frost and again every three weeks. Cutting the main stem above a leaf brings a second flush of side shoots.

Takes a light frost around -4C. Cold makes the stems sweeter but slows them to a stop, so late sowings need a cloche to finish.

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. Kai-lan are timed for direct sowing 2 weeks after it, and this page simply resolves those offsets against the frost date computed for Rostov-on-Don.

The median frost-free season here is 198 days, against 50 to 70 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 Rostov-on-Don →

Nearby

Kai-lan in places close by

Taganrog 61 km Luhansk 153 km Makiyivka 162 km Mariupol 164 km Donetsk 168 km Horlivka 174 km

Also in Rostov-on-Don

Other vegetables to time

Tomatoes tender Lettuce half hardy Potatoes half hardy Courgettes tender Sweet peppers tender Carrots hardy Cucumbers tender Green beans tender Peas hardy Garlic very hardy Chilli peppers tender Sweetcorn tender

Growing kai-lan in Rostov-on-Don

When should I plant kai-lan in Rostov-on-Don?

Aim for 21 Apr - 5 May in an average year. If you would rather not gamble on the weather, wait until 8-22 May - by then frost has finished in nine years out of ten.

When will kai-lan be ready to harvest in Rostov-on-Don?

Expect to start picking around 1 Jul - 31 Oct, based on 50 to 70 days to maturity from the planting date calculated for this location.

How much frost will kai-lan tolerate?

Takes a light frost around -4C. Cold makes the stems sweeter but slows them to a stop, so late sowings need a cloche to finish.