Sweet potato · Al Fayyum, Faiyum, Egypt
When to plant sweet potatoes in Al Fayyum
Main outdoor window
not outdoors here
The window this page is built around.
Timed from last spring frost
no spring frost
In Al Fayyum, 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 Al Fayyum
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.
Sweet potatoes through the year
Against the frost risk in Al Fayyum
Why these dates
Plant slips three weeks after last frost into soil at 18C or above. In cool climates, black plastic mulch is the difference between a crop and a disappointment.
Damaged at 1C - even a near-frost harms the roots. Lift before the first frost, not after it.
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. Sweet potatoes are timed with planting out 3 weeks after it, and this page simply resolves those offsets against the frost date computed for Al Fayyum.
Nearby
Sweet potatoes in places close by
Also in Al Fayyum
Other vegetables to time
Growing sweet potatoes in Al Fayyum
How much frost will sweet potatoes tolerate?
Damaged at 1C - even a near-frost harms the roots. Lift before the first frost, not after it.