Cabbage · Nagasaki, Nagasaki, Japan
When to plant cabbages in Nagasaki
Main outdoor window
27 Jan - 17 Feb
The window this page is built around.
Timed from last spring frost
17 February
In Nagasaki, on your chosen risk.
Ready to pick
7 Apr - 7 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 Nagasaki
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.
Start indoors
23 Dec - 13 Jan
Eight weeks before your last frost, under cover or on a windowsill.
Sow for overwintering
10-31 Aug
Counting back 114 days from your first frost so the crop matures in time.
Plant out
27 Jan - 17 Feb
Three weeks before your last frost.
Harvest
7 Apr - 7 May
Cabbages through the year
Against the frost risk in Nagasaki
Why these dates
Spring cabbage sown in late summer and overwintered gives the earliest crop of the year. Summer and autumn types go in from an early indoor sowing.
Hardy to about -8C, and savoy types considerably lower. Young transplants handle frost far better than most gardeners expect.
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. Cabbages are timed from 8 weeks before that frost for an indoor start, with planting out 3 weeks before it, and this page simply resolves those offsets against the frost date computed for Nagasaki.
The median frost-free season here is 309 days, against 70 to 100 days to maturity for this crop counted from planting out. That margin is what decides whether a late sowing is worth attempting.
Also in Nagasaki
Other vegetables to time
Growing cabbages in Nagasaki
When should I plant cabbages in Nagasaki?
Aim for 27 Jan - 17 Feb in an average year. If you would rather not gamble on the weather, wait until 11 Feb - 4 Mar - by then frost has finished in nine years out of ten.
When will cabbages be ready to harvest in Nagasaki?
Expect to start picking around 7 Apr - 7 May, based on 70 to 100 days to maturity from the planting date calculated for this location.
How much frost will cabbages tolerate?
Hardy to about -8C, and savoy types considerably lower. Young transplants handle frost far better than most gardeners expect.