Amaranth · Foshan, Guangdong, China
When to plant amaranth in Foshan
Main outdoor window
17 Jan - 7 Feb
The window this page is built around.
Timed from last spring frost
10 January
In Foshan, on your chosen risk.
Ready to pick
27 Apr - 27 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 Foshan
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
12 Dec - 3 Jan
Four weeks before your last frost, under cover or on a windowsill.
Sow direct
17 Jan - 7 Feb
One week after your last frost.
Plant out
24 Jan - 14 Feb
Two weeks after your last frost.
Harvest
27 Apr - 27 May
Amaranth through the year
Against the frost risk in Foshan
Why these dates
Sow after the last frost into warm soil. The seed is very fine and should barely be covered.
Killed by the first frost at either end of the season - it has no cold tolerance at all.
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. Amaranth are timed from 4 weeks before that frost for an indoor start, with planting out 2 weeks after it, and this page simply resolves those offsets against the frost date computed for Foshan.
The median frost-free season here is 348 days, against 100 to 130 days to maturity for this crop counted from sowing. That margin is what decides whether a late sowing is worth attempting.
Also in Foshan
Other grains to time
Growing amaranth in Foshan
When should I plant amaranth in Foshan?
Aim for 17 Jan - 7 Feb in an average year. If you would rather not gamble on the weather, wait until 7-28 Feb - by then frost has finished in nine years out of ten.
When will amaranth be ready to harvest in Foshan?
Expect to start picking around 27 Apr - 27 May, based on 100 to 130 days to maturity from the planting date calculated for this location.
How much frost will amaranth tolerate?
Killed by the first frost at either end of the season - it has no cold tolerance at all.