Sugar snap pea · Sinch’ŏn-ŭp, South Hwanghae, North Korea

When to plant sugar snap peas in Sinch’ŏn-ŭp

Main outdoor window

6-27 Mar

The window this page is built around.

Timed from last spring frost

10 April

In Sinch’ŏn-ŭp, on your chosen risk.

Ready to pick

1 Jun - 31 Aug

If you plant at the start of the window.

The average last frost. Half of all years are later than this.

Cautious Balanced Bold

Step by step in Sinch’ŏn-ŭp

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 autumn

13 Jul - 3 Aug

Counting back 89 days from your first frost so the crop matures in time.

Sow direct

6-27 Mar

Five weeks before your last frost.

Harvest

1 Jun - 31 Aug

Sow in succession. A single sowing gives you a single glut. Sow a short row every 14 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

60–75

Min soil temp

7°C (44.6°F)

Spacing

8 cm

Sowing depth

40 mm (1.6 in)

Sun

Full

Sugar snap peas through the year

Against the frost risk in Sinch’ŏn-ŭp

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sugar snap peas

Frost risk Autumn sowing Sow direct Harvest Today

Why these dates

Sow five weeks before the last frost with support in place from the start. Heat ends the crop, so an early sowing matters more than a large one.

Hardy to about -6C as a plant. Peas germinate in soil at 7C, which is usually weeks before the last frost date.

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. Sugar snap peas are timed for direct sowing 5 weeks before it, and this page simply resolves those offsets against the frost date computed for Sinch’ŏn-ŭp.

The median frost-free season here is 204 days, against 60 to 75 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 Sinch’ŏn-ŭp →

Nearby

Sugar snap peas in places close by

Sariwŏn-si 29 km Haeju 40 km Namp’o 43 km Songnim-ni 48 km Ch’ŏngdan-ŭp 58 km Man’gyŏngdae-ri 73 km

Also in Sinch’ŏn-ŭp

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 sugar snap peas in Sinch’ŏn-ŭp

When should I plant sugar snap peas in Sinch’ŏn-ŭp?

Aim for 6-27 Mar in an average year. If you would rather not gamble on the weather, wait until 13 Mar - 3 Apr - by then frost has finished in nine years out of ten.

When will sugar snap peas be ready to harvest in Sinch’ŏn-ŭp?

Expect to start picking around 1 Jun - 31 Aug, based on 60 to 75 days to maturity from the planting date calculated for this location.

How much frost will sugar snap peas tolerate?

Hardy to about -6C as a plant. Peas germinate in soil at 7C, which is usually weeks before the last frost date.