Michaelmas daisy · Delhi, Delhi, India
When to sow michaelmas daisies in Delhi
Main outdoor window
21 Jan - 18 Feb
The window this page is built around.
Timed from last spring frost
7 January
In Delhi, on your chosen risk.
Ready to pick
1 Sep - 31 Oct
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 Delhi
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.
Plant out
21 Jan - 18 Feb
Two weeks after your last frost.
In flower
1 Sep - 31 Oct
Michaelmas daisies through the year
Against the frost risk in Delhi
Why these dates
Plant out in spring. Pinch the shoots back by a third in early summer to keep a 1.2m plant self-supporting rather than staked. Divide every two or three years, because clumps run outward and die out in the middle.
Hardy to -30C. Mildew in a dry summer is the usual complaint, not winter damage; keeping the roots moist prevents most of 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. Michaelmas daisies are timed with planting out 2 weeks after it, and this page simply resolves those offsets against the frost date computed for Delhi.
Delhi 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 1, and will then produce every year after that, which is what makes the planting decision worth getting right the first time.
Also in Delhi
Other flowers to time
Growing michaelmas daisies in Delhi
When should I plant michaelmas daisies in Delhi?
Aim for 21 Jan - 18 Feb in an average year. If you would rather not gamble on the weather, wait until 21 Jan - 18 Feb - by then frost has finished in nine years out of ten.
When will michaelmas daisies be ready to harvest in Delhi?
Expect to start picking around 1 Sep - 31 Oct, based on 140 to 170 days to maturity from the planting date calculated for this location.
How much frost will michaelmas daisies tolerate?
Hardy to -30C. Mildew in a dry summer is the usual complaint, not winter damage; keeping the roots moist prevents most of it.