Siberian squill · Beihai, Guangxi, China
When to sow siberian squills in Beihai
Main outdoor window
not outdoors here
The window this page is built around.
Timed from last spring frost
no spring frost
In Beihai, 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 Beihai
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.
Siberian squills through the year
Against the frost risk in Beihai
Why these dates
Plant in early autumn, 7cm deep, in generous drifts - a handful of squills is invisible. Self-seeds freely once settled, so put them where spread is an advantage rather than a problem.
Hardy to about -35C, further north than almost any other spring bulb. Requires a genuinely cold winter and does not persist below zone 8.
Siberian squills 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 Beihai instead of forwards from its start.
Beihai sits in zone 11a, 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.
Also in Beihai
Other flowers to time
Growing siberian squills in Beihai
How much frost will siberian squills tolerate?
Hardy to about -35C, further north than almost any other spring bulb. Requires a genuinely cold winter and does not persist below zone 8.