Good King Henry · Hŭngnam, South Hamgyong, North Korea

When to plant good king henry in Hŭngnam

Main outdoor window

30 Mar - 20 Apr

The window this page is built around.

Timed from last spring frost

20 April

In Hŭngnam, on your chosen risk.

Ready to pick

1 Apr - 30 Jun

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 Hŭngnam

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

30 Mar - 20 Apr

Three weeks before your last frost.

Harvest

1 Apr - 30 Jun

Frost tolerance

Very-hardy

Damaged below

-25°C (-13°F)

First crop

Year 2

Hardy to

Zone 3a–8a

Min soil temp

5°C (41°F)

Spacing

45 cm

Sowing depth

5 mm (0.2 in)

Sun

Partial

Good King Henry through the year

Against the frost risk in Hŭngnam

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Good King Henry

Frost risk Sow direct Harvest Today

Why these dates

Extremely hardy and among the earliest greens available.

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. Good King Henry are timed for direct sowing 3 weeks before it, and this page simply resolves those offsets against the frost date computed for Hŭngnam.

Hardiness is not the obstacle here. Hŭngnam is zone 6a, comfortably inside the range this crop is rated for, so an established plant should come through an average winter without protection.

Do not expect a crop in the first year. A plant set out now should give its first worthwhile pick around year 2, and will then produce every year after that, which is what makes the planting decision worth getting right the first time.

See every crop timed for Hŭngnam →

Nearby

Good King Henry in places close by

Hamhŭng 12 km Sinp’o 53 km Wŏnsan 78 km Tŏkch’ŏn 118 km Changam-ch’on 129 km Kaech’ŏn 149 km

Also in Hŭngnam

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 good king henry in Hŭngnam

When should I plant good king henry in Hŭngnam?

Aim for 30 Mar - 20 Apr in an average year. If you would rather not gamble on the weather, wait until 5-26 Apr - by then frost has finished in nine years out of ten.

When will good king henry be ready to harvest in Hŭngnam?

Expect to start picking around 1 Apr - 30 Jun, based on 90 to 120 days to maturity from the planting date calculated for this location.

How much frost will good king henry tolerate?

Extremely hardy and among the earliest greens available.