Sweet pea · Kirāri Sulemānnagar, Delhi, India
When to sow sweet peas in Kirāri Sulemānnagar
Main outdoor window
26 Nov - 17 Dec
The window this page is built around.
Timed from last spring frost
7 January
In Kirāri Sulemānnagar, on your chosen risk.
Ready to pick
24 Feb - 16 Mar
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 Kirāri Sulemānnagar
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.
Start indoors
29 Oct - 19 Nov
Ten weeks before your last frost, under cover or on a windowsill.
Sow direct
26 Nov - 17 Dec
Six weeks before your last frost.
Plant out
10-31 Dec
Four weeks before your last frost.
In flower
24 Feb - 16 Mar
Sweet peas through the year
Against the frost risk in Kirāri Sulemānnagar
Why these dates
Sow in autumn and overwinter in a cold frame in zone 6 and warmer, or start ten weeks before last frost. Pinch at four true leaves.
Young plants take -8C and benefit from the cold. This is a flower where autumn sowing genuinely doubles the season.
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 peas are timed from 10 weeks before that frost for an indoor start, with planting out 4 weeks before it, and this page simply resolves those offsets against the frost date computed for Kirāri Sulemānnagar.
Growing sweet peas in Kirāri Sulemānnagar
When should I plant sweet peas in Kirāri Sulemānnagar?
Aim for 26 Nov - 17 Dec in an average year. If you would rather not gamble on the weather, wait until 2-23 Dec - by then frost has finished in nine years out of ten.
When will sweet peas be ready to harvest in Kirāri Sulemānnagar?
Expect to start picking around 24 Feb - 16 Mar, based on 90 to 110 days to maturity from the planting date calculated for this location.
How much frost will sweet peas tolerate?
Young plants take -8C and benefit from the cold. This is a flower where autumn sowing genuinely doubles the season.