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Powys Frost Dates & Growing Season
Here's the frost forecast for the next three days (last updated on December 8th, 2025 6:09 AM).
Dec 8th
Safe
Dec 9th
Safe
Dec 10th
Safe
Last Frost Date (Spring)
The average last frost date for Powys is May 15th. We recommend waiting until May 29th before planting tender crops outdoors.
First Frost Date (Autumn)
The average first frost date for Powys is October 20th.
Growing Season
Based on historical data, the growing season in Powys is approximately 158 days long.
Powys Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting.
Powys Monthly Gardening Guide
March
In March, you can start Lavender indoors, start Petunia indoors, start Tomatillo indoors, start Artichoke indoors, and start Thyme indoors.
April
In April, you can start Basil indoors, start Pumpkin indoors, sow Crimson Clover outside, sow Flax outside, and sow Carrot outside.
May
In May, you can sow Black Bean outside, sow Nasturtium outside, sow Hollyhock outside, sow Jute outside, and sow Fennel outside.