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Läckeby
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Growing Season: Läckeby

Kalmar, Sweden
-0.4°
Slight frost tonight at 04:00. Frost temperatures between tomorrow 02:00 – 06:00. Bring in or cover sensitive plants
0.7°
Last 24h: Near frost recorded tonight at 01:00. Inspect for frost damage

Growing season

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 9 May
Daylight
10+ h
14+ h
10+ h
25 Feb
15 Apr
28 Aug
16 Oct
233 days
Frost-free
10% frost-free
4 May
14 Oct
90% frost risk
163 days
Effective
4 May
14 Oct
163 days

The growing season in Läckeby is approximately 163 days and is limited by frost.

Last spring frost

The last spring frost normally occurs on 4 May in Läckeby. At the earliest, the last frost is over around 25 Apr and at the latest around 15 May.

Frost-free probabilityFrost-free prob. Date Grower's risk level Explanation
10% 25 Apr High risk Frost 9 out of 10 years after this date
25% 28 Apr Frost 3 out of 4 years after this date
50% 4 May Normal risk Frost every other year after this date
75% 7 May Frost 1 out of 4 years after this date
90% 15 May 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 Läckeby that is 4 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 14 Oct in Läckeby. At the earliest, frost can arrive around 30 Sep and at the latest around 4 Nov.

Frost probabilityFrost prob. Date Grower's risk level Explanation
10% 30 Sep Low risk Frost 1 out of 10 years on or before this date
25% 8 Oct Frost 1 out of 4 years on or before this date
50% 14 Oct Normal risk Frost every other year on or before this date
75% 28 Oct Frost 3 out of 4 years on or before this date
90% 4 Nov 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 Läckeby that is 14 Oct. 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 16 Oct 233
Persephone period 17 Oct 24 Feb 132
Plan the year's last sowing of cold-hardy plants in Läckeby so they are approximately 75% mature by 17 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 – 14 Apr 49 Grow long-day plants like spinach, lettuce and coriander.
Longer daylight 14+ h 15 Apr – 27 Aug 135 High risk of bolting
Shorter daylight 10-14 h 28 Aug – 16 Oct 50 Grow long-day plants