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Hounslow Frost Dates & Growing Season
Here's the frost forecast for the next three days (last updated on December 8th, 2025 6:02 AM).
Dec 8th
Safe
Dec 9th
Safe
Dec 10th
Safe
Last Frost Date (Spring)
The average last frost date for Hounslow is April 10th. We recommend waiting until April 24th before planting tender crops outdoors.
First Frost Date (Autumn)
The average first frost date for Hounslow is November 25th.
Growing Season
Based on historical data, the growing season in Hounslow is approximately 229 days long.
Hounslow Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting.
Hounslow Monthly Gardening Guide
January
In January, you can start French Lavender indoors, start Artichoke indoors, start Lavender indoors, start Celery indoors, and start Geranium indoors.
February
In February, you can sow Pea outside, start Broccoli indoors, start Kale indoors, start Oregano indoors, and start Thyme indoors.
March
In March, you can sow Hyssop outside, sow Alfalfa outside, sow Lupine outside, sow Forget Me Not outside, and sow Crimson Clover outside.
April
In April, you can sow Chia outside, sow Cosmos outside, sow Jute outside, sow Mung Bean outside, and sow Melon outside.