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Ås-Gammelbodarna
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Growing Season: Ås-Gammelbodarna

Ragunda, Jämtland, Sweden

Growing season

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 9 Jun
Daylight
10+ h
14+ h
10+ h
3 Mar
10 Apr
3 Sep
10 Oct
221 days
Frost-free
10% frost-free
28 May
19 Sep
90% frost risk
114 days
Effective
28 May
19 Sep
114 days

The growing season in Ås-Gammelbodarna is approximately 114 days and is limited by frost.

Last spring frost

The last spring frost normally occurs on 28 May in Ås-Gammelbodarna. At the earliest, the last frost is over around 11 May and at the latest around 6 Jun.

Frost-free probabilityFrost-free prob. Date Grower's risk level Explanation
10% 11 May High risk Frost 9 out of 10 years after this date
25% 18 May Frost 3 out of 4 years after this date
50% 28 May Normal risk Frost every other year after this date
75% 2 Jun Frost 1 out of 4 years after this date
90% 6 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 Ås-Gammelbodarna that is 28 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 19 Sep in Ås-Gammelbodarna. At the earliest, frost can arrive around 1 Sep and at the latest around 30 Sep.

Frost probabilityFrost prob. Date Grower's risk level Explanation
10% 1 Sep Low risk Frost 1 out of 10 years on or before this date
25% 4 Sep Frost 1 out of 4 years on or before this date
50% 19 Sep Normal risk Frost every other year on or before this date
75% 24 Sep Frost 3 out of 4 years on or before this date
90% 30 Sep 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 Ås-Gammelbodarna that is 19 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 Ås-Gammelbodarna 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