Safe to Plant

Good King Henry · Luxor, Luxor, Egypt

When to plant good king henry 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.

Frost tolerance
Very-hardy
Damaged below
-25°C (-13°F)
First crop
Year 2
Hardy to
Zone 3a–8a
Min soil temp
5°C (41°F)
Spacing
45 cm
Sowing depth
5 mm (0.2 in)
Sun
Partial

Good King Henry through the year

Against the frost risk in Luxor

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

Frost risk Today

Why these dates

Extremely hardy and among the earliest greens available.

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. Good King Henry are timed for direct sowing 3 weeks before it, and this page simply resolves those offsets against the frost date computed for Luxor.

Luxor sits in zone 10b, which is milder than this crop wants, and a winter that never really arrives is its own problem. The dates below still describe the right time of year; the open question is survival rather than timing.

Do not expect a crop in the first year. A plant set out now should give its first worthwhile pick around year 2, 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 Luxor →

Growing good king henry in Luxor

How much frost will good king henry tolerate?

Extremely hardy and among the earliest greens available.