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Senora-Svenö
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Growing Season: Senora-Svenö

Blekinge, Sweden

Growing season

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 3 Sep
Daylight
10+ h
14+ h
10+ h
25 Feb
16 Apr
27 Aug
17 Oct
234 days
Frost-free
10% frost-free
1 Apr
23 Nov
90% frost risk
236 days
Effective
1 Apr
17 Oct
199 days

The growing season in Senora-Svenö is approximately 199 days and is limited by both frost and daylight.

Last spring frost

The last spring frost normally occurs on 1 Apr in Senora-Svenö. At the earliest, the last frost is over around 14 Mar and at the latest around 13 Apr.

Frost-free probabilityFrost-free prob. Date Grower's risk level Explanation
10% 14 Mar High risk Frost 9 out of 10 years after this date
25% 22 Mar Frost 3 out of 4 years after this date
50% 1 Apr Normal risk Frost every other year after this date
75% 7 Apr Frost 1 out of 4 years after this date
90% 13 Apr 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 Senora-Svenö that is 1 Apr. 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 23 Nov in Senora-Svenö. At the earliest, frost can arrive around 5 Nov and at the latest around 15 Dec.

Frost probabilityFrost prob. Date Grower's risk level Explanation
10% 5 Nov Low risk Frost 1 out of 10 years on or before this date
25% 19 Nov Frost 1 out of 4 years on or before this date
50% 23 Nov Normal risk Frost every other year on or before this date
75% 29 Nov Frost 3 out of 4 years on or before this date
90% 15 Dec 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 Senora-Svenö that is 23 Nov. 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 25 Feb 17 Oct 234
Persephone period 18 Oct 24 Feb 131
Plan the year's last sowing of cold-hardy plants in Senora-Svenö so they are approximately 75% mature by 18 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 25 Feb – 15 Apr 50 Grow long-day plants like spinach, lettuce and coriander.
Longer daylight 14+ h 16 Apr – 26 Aug 133 High risk of bolting
Shorter daylight 10-14 h 27 Aug – 17 Oct 52 Grow long-day plants