Safe to Plant

Rocket · New York City, New York, United States

When to plant rocket in New York City

Main outdoor window

1-11 Mar

The window this page is built around.

Timed from last spring frost

29 March

In New York City, on your chosen risk.

Ready to pick

31 Mar - 15 Apr

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 New York City

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.

Sow for overwintering

13 Sep - 4 Oct

Counting back 59 days from your first frost so the crop matures in time.

Sow direct

1-11 Mar

Four weeks before your last frost.

Harvest

31 Mar - 15 Apr

Sow in succession. A single sowing gives you a single glut. Sow a short row every 10 days through the window above and you get a steady supply instead.
Frost tolerance
Hardy
Damaged below
-7°C (19.4°F)
Days to maturity
30–45
Min soil temp
4.5°C (40.1°F)
Spacing
15 cm
Sowing depth
6 mm (0.2 in)
Sun
Partial

Rocket through the year

Against the frost risk in New York City

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

Frost risk Autumn sowing Sow direct Harvest Today

Why these dates

Ready in a month. Sow every ten days spring and autumn; skip high summer, when it turns unpleasantly hot and bolts within weeks.

Withstands -7C and holds usable leaf well into winter under cover.

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. Rocket are timed for direct sowing 4 weeks before it, and this page simply resolves those offsets against the frost date computed for New York City.

The median frost-free season here is 249 days, against 30 to 45 days to maturity for this crop counted from sowing. That margin is what decides whether a late sowing is worth attempting.

See every crop timed for New York City →

Growing rocket in New York City

When should I plant rocket in New York City?

Aim for 1-11 Mar in an average year. If you would rather not gamble on the weather, wait until 11-21 Mar - by then frost has finished in nine years out of ten.

When will rocket be ready to harvest in New York City?

Expect to start picking around 31 Mar - 15 Apr, based on 30 to 45 days to maturity from the planting date calculated for this location.

How much frost will rocket tolerate?

Withstands -7C and holds usable leaf well into winter under cover.