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Rhondda Cynon Taf 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 Rhondda Cynon Taf is May 1st. We recommend waiting until May 15th before planting tender crops outdoors.
First Frost Date (Autumn)
The average first frost date for Rhondda Cynon Taf is November 5th.
Growing Season
Based on historical data, the growing season in Rhondda Cynon Taf is approximately 188 days long.
Rhondda Cynon Taf Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting.
Rhondda Cynon Taf Monthly Gardening Guide
February
In February, you can start Leek indoors, start Begonia indoors, start Pansy indoors, start Onion indoors, and start Impatiens indoors.
March
In March, you can start Brussel Sprout indoors, start Statice indoors, start Pepper indoors, start Cabbage indoors, and start Black Eyed Susan indoors.
April
In April, you can sow Kale outside, sow Alfalfa outside, sow Parsley outside, sow Radish outside, and sow Carrot outside.
May
In May, you can sow Runner Bean outside, sow Butterfly Pea outside, sow Fenugreek outside, sow Moss Rose outside, and sow Lima Bean outside.