What Is the Ideal Temperature Range for common hyacinth?
Common hyacinth exhibits notable resilience to cold, enduring temperatures as low as -25℃ (-13℉), and has a heat tolerance up to 41℃ (106℉). Its robust temperature tolerance influences its care, necessitating protection during extreme cold with mulching or covering. In high heat, ensure adequate hydration and shade. Symptoms of stress include yellowing leaves and stunted growth when overheated, or wilted, discolored foliage if too cold. Overcooling countermeasures include insulating with mulch or bringing the plant indoors; for overheating, improve hydration, and provide partial shade.