Wild garlic · Goyang-si, Gyeonggi-do, South Korea
When to plant wild garlic in Goyang-si
Main outdoor window
12 Nov - 20 Mar
The window this page is built around.
Timed from last spring frost
3 April
In Goyang-si, on your chosen risk.
Ready to pick
1 Mar - 31 May
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 Goyang-si
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 bulbs
12 Nov - 20 Mar
Any time the plant is dormant and the ground is neither frozen nor waterlogged: after leaf fall in autumn, or at the end of winter before growth restarts.
Harvest
1 Mar - 31 May
Wild garlic through the year
Against the frost risk in Goyang-si
Why these dates
Plant bulbs in autumn or move plants in leaf in spring, into damp shade under deciduous trees. Pick leaves before the flowers open, after which they coarsen quickly.
Hardy to -20C. The whole growth cycle happens between the last frosts of winter and the closing of the tree canopy, which is what it is adapted to.
Wild garlic are planted once and then left in place, so there is no sowing offset to resolve. What matters in Goyang-si is the shape of the year: this crop is dormant through the winter and is planted while it sleeps, any time between leaf fall in autumn and the restart of growth in spring, so long as the ground is neither frozen nor waterlogged. That is why the window below spans the cold months rather than sitting in the middle of the growing season.
Hardiness is not the obstacle here. Goyang-si is zone 7a, 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.
Growing wild garlic in Goyang-si
When should I plant wild garlic in Goyang-si?
Aim for 12 Nov - 20 Mar in an average year. If you would rather not gamble on the weather, wait until 31 Oct - 29 Mar - by then frost has finished in nine years out of ten.
When will wild garlic be ready to harvest in Goyang-si?
Expect to start picking around 1 Mar - 31 May, based on 300 to 365 days to maturity from the planting date calculated for this location.
How much frost will wild garlic tolerate?
Hardy to -20C. The whole growth cycle happens between the last frosts of winter and the closing of the tree canopy, which is what it is adapted to.