Ideal Temperature for Woolly yarrow

Images of Woolly yarrow

Woolly yarrow(Achillea tomentosa)

Signs of Cold Stress in Woolly yarrow

Symptoms

Woolly yarrow tolerates cold well and flourishes optimally when temperatures exceed 65℉. In winter, maintain temperatures above 50℉. If temperatures drop below 30℉, while winter changes might not be obvious, spring may see reduced or absent sprouting.

Solutions

In spring, remove any sections that have not sprouted.

Signs of Heat Stress in Woolly yarrow

Symptoms

In summer, Woolly yarrow should be kept below 75℉. When temperatures surpass 85℉, the plant's leaves might lighten, curl, become prone to sunburn, and in severe instances, the entire plant could wilt and dry out.

Solutions

Remove any sun-damaged and desiccated portions. Relocate the plant to a spot offering protection from the midday and afternoon sun, or use a shade cloth for cover. Water the plant in the morning and evening to maintain soil moisture.

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