Marigold · Dhaka, Dhaka Division, Bangladesh
When to sow marigolds in Dhaka
Main outdoor window
not outdoors here
The window this page is built around.
Timed from last spring frost
no spring frost
In Dhaka, 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 Dhaka
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.
Marigolds through the year
Against the frost risk in Dhaka
Why these dates
Six weeks indoors produces flowering plants at transplant time. Direct sowing works but flowers three weeks later.
Killed by frost at both ends of the season, with no tolerance at any growth stage.
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. Marigolds are timed from 6 weeks before that frost for an indoor start, with planting out 1 weeks after it, and this page simply resolves those offsets against the frost date computed for Dhaka.
Also in Dhaka
Other flowers to time
Growing marigolds in Dhaka
How much frost will marigolds tolerate?
Killed by frost at both ends of the season, with no tolerance at any growth stage.