On this page:
Denbighshire 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 Denbighshire is May 1st. We recommend waiting until May 15th before planting tender crops outdoors.
First Frost Date (Autumn)
The average first frost date for Denbighshire is November 5th.
Growing Season
Based on historical data, the growing season in Denbighshire is approximately 188 days long.
Denbighshire Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting.
Denbighshire Monthly Gardening Guide
February
In February, you can start Pansy indoors, start French Lavender indoors, start Lavender indoors, start Petunia indoors, and start Celery indoors.
March
In March, you can start Moonflower indoors, sow Spinach outside, start Brussel Sprout indoors, start Oregano indoors, and start Cauliflower indoors.
April
In April, you can sow Chervil outside, sow Cilantro outside, sow Hyssop outside, sow Dill outside, and sow Chives outside.
May
In May, you can sow Melon outside, sow Sunflower outside, sow Butterfly Pea outside, sow Babys Breath outside, and sow Pumpkin outside.