April 25, 2025

-EP273 The Art of Hardening Off: Preparing Seedlings for Harsh Weather. How To Ensure Progress In Mixed Weather, Hardening Off Young Plants & More

26 minutes

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The weather's dramatic shift from perfect spring warmth to a chaotic mix of snow, torrential rain, hail, and wind serves as a powerful reminder that April gardening requires vigilance and protection strategies. This sudden weather whiplash threatens newly planted seedlings and emerging growth after weeks of productive sowing and planting.

Hardening off becomes crucial during these transitional periods. Whether using a cold frame to gradually introduce outdoor conditions or bringing trays in and out daily, this process gives seedlings their best chance of survival when weather turns hostile. Bio-netting and enviro-mesh provide essential protection against April's weather extremes while still allowing airflow and moisture to reach your plants. Creating proper hoop supports prevents protective coverings from damaging tender growth during wind events.

Beyond weather challenges, spring brings opportunistic pests. Pigeons swoop in to feast on brassicas and lettuces when little else is available in the natural landscape. Slugs and snails emerge with increasing moisture levels, particularly threatening dahlias and hostas as they first peek through the soil. For warm-season crops like tomatoes, daily gentle brushing of foliage triggers stem-strengthening hormones that create more resilient plants before their final move to polytunnels.

Understanding your local last frost date allows proper timing for heat-loving crops while implementing these protection strategies ensures continuous harvests through proper succession planting. These simple yet effective techniques transform vulnerable spring plantings into resilient, productive garden plots despite April's weather rollercoaster.

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Until next week
Happy gardening
John