Love-in-a-mist · Hŭngnam, South Hamgyong, North Korea
When to sow love-in-a-mist 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
8-28 Jun
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 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.
In flower
8-28 Jun
Love-in-a-mist through the year
Against the frost risk in Hŭngnam
Why these dates
Sow direct three weeks before the last frost and thin to 20cm. It flowers for about six weeks and then goes to seed, so sow a second batch three weeks later if you want it into late summer. Leave the last flowers to pod and it will sow itself for next year.
Hardy to about -10C, so an autumn sowing overwinters easily in zone 7 and warmer and flowers in late spring. Short-lived in heat and finished by midsummer in a hot climate.
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. Love-in-a-mist 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.
The median frost-free season here is 185 days, against 70 to 90 days to first flower for this crop counted from sowing. That margin is what decides whether a late sowing is worth attempting.
Also in Hŭngnam
Other flowers to time
Growing love-in-a-mist in Hŭngnam
When should I plant love-in-a-mist 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 love-in-a-mist be ready to harvest in Hŭngnam?
Expect to start picking around 8-28 Jun, based on 70 to 90 days to maturity from the planting date calculated for this location.
How much frost will love-in-a-mist tolerate?
Hardy to about -10C, so an autumn sowing overwinters easily in zone 7 and warmer and flowers in late spring. Short-lived in heat and finished by midsummer in a hot climate.