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Flintshire Frost Dates & Growing Season
Here's the frost forecast for the next three days (last updated on December 8th, 2025 6:08 AM).
Dec 8th
Safe
Dec 9th
Safe
Dec 10th
Safe
Last Frost Date (Spring)
The average last frost date for Flintshire is May 1st. We recommend waiting until May 15th before planting tender crops outdoors.
First Frost Date (Autumn)
The average first frost date for Flintshire is November 10th.
Growing Season
Based on historical data, the growing season in Flintshire is approximately 193 days long.
Flintshire Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting.
Flintshire Monthly Gardening Guide
February
In February, you can start Snapdragon indoors, start Begonia indoors, start Pansy indoors, start Geranium indoors, and start French Lavender indoors.
March
In March, you can start Statice indoors, start Cabbage indoors, start Luffa indoors, start Marigold indoors, and start Black Eyed Susan indoors.
April
In April, you can sow Watercress outside, sow Cilantro outside, sow Mustard outside, sow California Poppy outside, and sow Chives outside.
May
In May, you can sow Sesame outside, sow Chia outside, sow Black Bean outside, sow Nasturtium outside, and sow Zinnia outside.