Ideal Temperature for Lesser knapweed

Images of Lesser knapweed

Lesser knapweed(Centaurea nigra)
Lesser knapweed(Centaurea nigra)
Lesser knapweed(Centaurea nigra)
Lesser knapweed(Centaurea nigra)

Signs of Cold Temperatures in Lesser knapweed

Symptoms

Lesser knapweed tolerates cold well and grows optimally when temperatures are above 60℉. In winter, it needs to stay above 50℉. If temperatures drop below 40℉, while no immediate winter changes might be seen, spring may bring reduced or absent sprouting.

Solutions

In spring, remove any sections that have not sprouted.

Signs of High Temperatures in Lesser knapweed

Symptoms

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

Solutions

Remove any parts that are sunburned and dried. Relocate the plant to a spot offering protection from the midday and afternoon sun, or use a shade cloth. Water the plant in the morning and evening to maintain soil moisture.

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