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Greenwich 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 Greenwich is April 1st. We recommend waiting until April 15th before planting tender crops outdoors.
First Frost Date (Autumn)
The average first frost date for Greenwich is December 1st.
Growing Season
Based on historical data, the growing season in Greenwich is approximately 244 days long.
Greenwich Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting.
Greenwich Monthly Gardening Guide
January
In January, you can start Lavender indoors, start Celery indoors, start French Lavender indoors, start Leek indoors, and start Petunia indoors.
February
In February, you can start Stevia indoors, start Moonflower indoors, start Marigold indoors, start Brussel Sprout indoors, and start Sage indoors.
March
In March, you can sow Garden Cress outside, sow Lupine outside, sow Chervil outside, sow Chives outside, and sow Sorrel outside.
April
In April, you can sow Butternut Squash outside, sow Corn outside, sow Nasturtium outside, sow Moss Rose outside, and sow Black Bean outside.