Safe to Plant

Orange · Cairo, Cairo, Egypt

When to plant oranges in Cairo

Main outdoor window

not outdoors here

The window this page is built around.

Timed from last spring frost

no spring frost

In Cairo, 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 Cairo

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.

Frost tolerance
Tender
Damaged below
-4°C (24.8°F)
First crop
Year 3
Hardy to
Zone 9a–11a
Spacing
400 cm
Sun
Full

Oranges through the year

Against the frost risk in Cairo

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Frost risk Today

Why these dates

Plant in spring once the soil has warmed, so the tree has a full season to root before its first winter. Citrus in containers should go out after the last frost and come in before the first - the move is the whole calendar in a cool climate.

Foliage is damaged around -3C and the fruit itself freezes at about -2C. Wood damage begins near -4C on a mature tree and considerably earlier on a young one.

Oranges are planted once and then left in place, so there is no sowing offset to resolve. Nor is there a dormant season to plant into: this crop keeps its leaves and keeps growing through the winter, which is exactly why cold damages it. The window on this page therefore waits until the last frost in Cairo has passed and the soil has begun to warm, giving the roots the longest possible run before the cold returns.

Hardiness is not the obstacle here. Cairo is zone 10b, 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 3, and will then produce every year after that, which is what makes the planting decision worth getting right the first time.

See every crop timed for Cairo →

Growing oranges in Cairo

How much frost will oranges tolerate?

Foliage is damaged around -3C and the fruit itself freezes at about -2C. Wood damage begins near -4C on a mature tree and considerably earlier on a young one.