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Perth and Kinross Frost Dates & Growing Season
Here's the frost forecast for the next three days (last updated on January 13th, 2026 12:13 AM). You can also use the My Cozy Plant app for faster frost warnings and alerts in your postal code.
Jan 13th
Radiation Frost (Clear skies froze leaves)
Jan 14th
False Security / Chilling Injury (Too cold for Basil)
Jan 15th
False Security / Chilling Injury (Too cold for Basil)
Warning: The soil temperature is forecasted to drop to -0.1°C tonight. We recommend covering seedlings, tender perennials, and low-lying crops with horticultural fleece or cloches to prevent damage.
Last Frost Date (Spring)
The average last frost date for Perth and Kinross is May 10th. We recommend waiting until May 24th before planting tender crops outdoors.
First Frost Date (Autumn)
The average first frost date for Perth and Kinross is October 25th.
Growing Season
Based on historical data, the growing season in Perth and Kinross is approximately 168 days long.
Perth and Kinross Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting.
Perth and Kinross Monthly Gardening Guide
March
In March, you can start Oregano indoors, start French Lavender indoors, start Onion indoors, start Coleus indoors, and start Tomato indoors.
April
In April, you can sow Mustard outside, sow Dill outside, sow Flax outside, sow Poppy outside, and sow Alfalfa outside.
May
In May, you can sow Butterfly Pea outside, sow Gladiolus outside, sow Moss Rose outside, sow Babys Breath outside, and sow Okra outside.