Water chestnut · Luxor, Luxor, Egypt
When to plant water chestnuts in Luxor
Main outdoor window
not outdoors here
The window this page is built around.
Timed from last spring frost
no spring frost
In Luxor, on your chosen risk.
First autumn frost
no autumn frost
The far end of the outdoor season.
The average last frost. Half of all years are later than this.
Step by step in Luxor
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.
Water chestnuts through the year
Against the frost risk in Luxor
Why these dates
Plant corms two weeks after the last frost into 5cm of standing water. Drain in autumn once the tops yellow, then dig the corms out of the drying mud.
Top growth is killed at 0C, which is the signal to drain and harvest. Corms need around 200 frost-free days to size up.
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. Water chestnuts are timed with planting out 2 weeks after it, and this page simply resolves those offsets against the frost date computed for Luxor.
Also in Luxor
Other vegetables to time
Growing water chestnuts in Luxor
How much frost will water chestnuts tolerate?
Top growth is killed at 0C, which is the signal to drain and harvest. Corms need around 200 frost-free days to size up.