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Väster-Eldsmark
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Growing Season: Väster-Eldsmark

Örnsköldsvik, Västernorrland, Sweden

Growing season

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 11 Jun
Daylight
10+ h
14+ h
10+ h
3 Mar
10 Apr
3 Sep
10 Oct
221 days
Frost-free
10% frost-free
19 May
27 Sep
90% frost risk
131 days
Effective
19 May
27 Sep
131 days

The growing season in Väster-Eldsmark is approximately 131 days and is limited by frost.

Last spring frost

The last spring frost normally occurs on 19 May in Väster-Eldsmark. At the earliest, the last frost is over around 10 May and at the latest around 4 Jun.

Frost-free probabilityFrost-free prob. Date Grower's risk level Explanation
10% 10 May High risk Frost 9 out of 10 years after this date
25% 14 May Frost 3 out of 4 years after this date
50% 19 May Normal risk Frost every other year after this date
75% 24 May Frost 1 out of 4 years after this date
90% 4 Jun Low risk Frost 1 out of 10 years after this date
Growing is often planned around the date when there is a 50% probability that the last spring frost has occurred. In Väster-Eldsmark that is 19 May. If you want lower frost risk, choose 75% or 90%, i.e. a later date.

First autumn frost

The first autumn frost normally occurs on 27 Sep in Väster-Eldsmark. At the earliest, frost can arrive around 14 Sep and at the latest around 10 Oct.

Frost probabilityFrost prob. Date Grower's risk level Explanation
10% 14 Sep Low risk Frost 1 out of 10 years on or before this date
25% 21 Sep Frost 1 out of 4 years on or before this date
50% 27 Sep Normal risk Frost every other year on or before this date
75% 3 Oct Frost 3 out of 4 years on or before this date
90% 10 Oct High risk Frost 9 out of 10 years on or before this date
Growing is often planned around the date when there is a 50% probability that the first autumn frost has occurred. In Väster-Eldsmark that is 27 Sep. If you want lower frost risk, choose 10% or 25%, i.e. an earlier date.

Daylight & Persephone Period

Plants need at least 10 hours of daylight to grow actively. The period with under 10 h is called the Persephone period.

From To Number of days
Daylight over 10 h 3 Mar 10 Oct 221
Persephone period 11 Oct 2 Mar 144
Plan the year's last sowing of cold-hardy plants in Väster-Eldsmark so they are approximately 75% mature by 11 Oct when daylight drops below 10 h and growth starts to slow.

Daylight periods

Long-day plants like lettuce, spinach and coriander bolt when daylight gets too long. Plan sowing and harvest during periods when daylight is shorter (10-14 h). Early spring or late summer sowing gives the best results.

Season Light Period Days Advice
Shorter daylight 10-14 h 3 Mar – 9 Apr 38 Grow long-day plants like spinach, lettuce and coriander.
Longer daylight 14+ h 10 Apr – 2 Sep 146 High risk of bolting
Shorter daylight 10-14 h 3 Sep – 10 Oct 38 Grow long-day plants