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Bolton Frost Dates & Growing Season
Here's the frost forecast for the next three days (last updated on December 8th, 2025 6:03 AM).
Dec 8th
Safe
Dec 9th
Safe
Dec 10th
Safe
Last Frost Date (Spring)
The average last frost date for Bolton is May 1st. We recommend waiting until May 15th before planting tender crops outdoors.
First Frost Date (Autumn)
The average first frost date for Bolton is November 5th.
Growing Season
Based on historical data, the growing season in Bolton is approximately 188 days long.
Bolton Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting.
Bolton Monthly Gardening Guide
February
In February, you can start Lavender indoors, start Rosemary indoors, start Leek indoors, start Geranium indoors, and start Impatiens indoors.
March
In March, you can start Sage indoors, start Rue indoors, start Moonflower indoors, start Luffa indoors, and start Brussel Sprout indoors.
April
In April, you can sow Milk Thistle outside, sow Carrot outside, sow Hyssop outside, sow Mustard outside, and sow Cilantro outside.
May
In May, you can sow Jute outside, sow Fenugreek outside, sow Anise outside, sow Sesame outside, and sow Zinnia outside.