Ideal Temperature for Welsh onion
Images of Welsh onion
Signs of Cold Stress in Welsh onion
Symptoms
Welsh onion tolerates cold moderately, flourishing optimally between 60℉ and 75℉. In winter, maintain temperatures above 50℉. Below 32℉, leaves may darken. Severe cases show water-soaked decay, wilting, drooping, and browning foliage.
Solutions
Remove frost-damaged sections. Promptly relocate indoors to warmth or create a temporary greenhouse for protection. Indoors, position near a south-facing window for ample light. Supplement with artificial lighting if natural light is insufficient.
Signs of Heat Stress in Welsh onion
Symptoms
In summer, Welsh onion needs temperatures below 75℉. Above 86℉, growth slows, leaves lighten, and sunburn risk increases.
Solutions
Remove sun-scorched and desiccated parts. Move the plant to a shaded spot during afternoon sun. Water in the morning and evening to maintain soil moisture.
