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Dorset Frost Dates & Growing Season
Here's the frost forecast for the next three days (last updated on December 8th, 2025 6:05 AM).
Dec 8th
Safe
Dec 9th
Safe
Dec 10th
Safe
Last Frost Date (Spring)
The average last frost date for Dorset is April 20th. We recommend waiting until May 4th before planting tender crops outdoors.
First Frost Date (Autumn)
The average first frost date for Dorset is November 20th.
Growing Season
Based on historical data, the growing season in Dorset is approximately 214 days long.
Dorset Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting.
Dorset Monthly Gardening Guide
February
In February, you can start Rosemary indoors, start Cauliflower indoors, start Broccoli indoors, start Tomato indoors, and start Artichoke indoors.
March
In March, you can start Basil indoors, sow Parsley outside, sow Poppy outside, start Swamp Milkweed indoors, and sow Lettuce outside.
April
In April, you can sow Moss Rose outside, sow Dill outside, sow Gladiolus outside, sow Beet outside, and sow Runner Bean outside.
May
In May, you can sow Mung Bean outside, sow Watermelon outside, sow Sesame outside, sow Chia outside, and sow Black Bean outside.