Winter savory · Hyesan, Yanggang-do, North Korea
When to plant winter savory in Hyesan
Main outdoor window
29 May - 26 Jun
The window this page is built around.
Timed from last spring frost
15 May
In Hyesan, on your chosen risk.
Ready to pick
1 May - 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 Hyesan
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.
Plant out
29 May - 26 Jun
Two weeks after your last frost.
Harvest
1 May - 31 Oct
Winter savory through the year
Against the frost risk in Hyesan
Why these dates
Hardy to about -20C in dry soil.
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. Winter savory are timed with planting out 2 weeks after it, and this page simply resolves those offsets against the frost date computed for Hyesan.
Hardiness is not the obstacle here. Hyesan is zone 4b, 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 1, and will then produce every year after that, which is what makes the planting decision worth getting right the first time.
Growing winter savory in Hyesan
When should I plant winter savory in Hyesan?
Aim for 29 May - 26 Jun in an average year. If you would rather not gamble on the weather, wait until 10 Jun - 8 Jul - by then frost has finished in nine years out of ten.
When will winter savory be ready to harvest in Hyesan?
Expect to start picking around 1 May - 31 Oct, based on 80 to 100 days to maturity from the planting date calculated for this location.
How much frost will winter savory tolerate?
Hardy to about -20C in dry soil.