Ornamental allium · Namangan, Namangan, Uzbekistan
When to sow ornamental alliums in Namangan
Main outdoor window
5-19 Oct
The window this page is built around.
Timed from last spring frost
13 March
In Namangan, on your chosen risk.
Ready to pick
1 May - 30 Jun
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 Namangan
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 the bulbs
5-19 Oct
Four to six weeks before your first frost, so roots form before the ground cools.
In flower
1 May - 30 Jun
Ornamental alliums through the year
Against the frost risk in Namangan
Why these dates
Plant in mid-autumn, four to six weeks before the first frost, at three times the bulb's height. Site them behind something bushy: the leaves collapse into an untidy heap while the flower is still at its best, and need hiding rather than removing.
Hardy to -30C. Needs a cold winter and, more than most bulbs, sharp drainage - alliums rot in a wet winter far more readily than they freeze in a cold one.
Ornamental alliums are anchored to the first autumn frost rather than the last spring one, so the planting window on this page counts backwards from the end of the season in Namangan instead of forwards from its start.
Hardiness is not the obstacle here. Namangan is zone 8b, comfortably inside the range this crop is rated for, so an established plant should come through an average winter without protection.
The median frost-free season here is 248 days, against 180 to 230 days to first flower for this crop counted from sowing. That margin is what decides whether a late sowing is worth attempting.
Also in Namangan
Other flowers to time
Growing ornamental alliums in Namangan
When should I plant ornamental alliums in Namangan?
Aim for 5-19 Oct in an average year. If you would rather not gamble on the weather, wait until 25 Sep - 9 Oct - by then frost has finished in nine years out of ten.
When will ornamental alliums be ready to harvest in Namangan?
Expect to start picking around 1 May - 30 Jun, based on 180 to 230 days to maturity from the planting date calculated for this location.
How much frost will ornamental alliums tolerate?
Hardy to -30C. Needs a cold winter and, more than most bulbs, sharp drainage - alliums rot in a wet winter far more readily than they freeze in a cold one.