Ideal Temperature for Crown of thorns
Images of Crown of thorns
Signs of Cold Stress in Crown of thorns
Symptoms
Crown of thorns flourishes in warm conditions and cannot withstand cold. Optimal growth occurs when temperatures exceed 65℉. In winter, maintain temperatures above 60℉. If temperatures drop below 50℉, the plant may weaken, droop, and become susceptible to root decay. Minor frost damage might not show immediate signs, but the plant will progressively decline after about a week.
Solutions
Prune away frost-damaged sections, checking for root rot. If roots are rotted, remove them, and the plant can be propagated from cuttings. Relocate the plant indoors to a warm spot immediately, positioning it near a south-facing window for ample light. If natural light is insufficient, provide supplementary lighting.
Signs of Heat Stress in Crown of thorns
Symptoms
In summer, Crown of thorns should be kept below 75℉. When temperatures surpass 85℉, the plant will stop growing, lose water, wilt, and be more prone to sun damage.
Solutions
Remove any sunburnt or decayed portions. Protect the plant from intense afternoon sun until it recovers and resumes growth. For plants with root rot, cease watering until new roots start to form.
