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Spelthorne 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 Spelthorne is April 20th. We recommend waiting until May 4th before planting tender crops outdoors.
First Frost Date (Autumn)
The average first frost date for Spelthorne is November 20th.
Growing Season
Based on historical data, the growing season in Spelthorne is approximately 214 days long.
Spelthorne Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting.
Spelthorne Monthly Gardening Guide
February
In February, you can start Rue indoors, start Leek indoors, start Coneflower indoors, start Coleus indoors, and start Pansy indoors.
March
In March, you can sow Crimson Clover outside, start Moonflower indoors, sow Carrot outside, sow Sorrel outside, and sow Radish outside.
April
In April, you can sow Dill outside, sow Zucchini outside, sow Swiss Chard outside, sow Fennel outside, and sow Quinoa outside.
May
In May, you can sow Mung Bean outside, sow Jute outside, sow Black Bean outside, sow Butterfly Pea outside, and sow Sesame outside.