9+ Snapdragon Flower Growing Conditions. Tender perennial grown as an annual: All these factors are necessarily.
Snapdragons are very responsive to day length, light intensity, and temperature. 12 to 36 inches spacing: Tender perennial grown as an annual:
Antirrhinum majus, commonly called snapdragon, is an old garden favorites that, in optimum cool summer growing conditions, will flower well from spring to fall.
Growing guide [+] larger image. Find out the ideal conditions for growing snapdragon annuals in your garden. 12 to 36 inches spacing: Keep the soil moist at 65 degrees, as snapdragons prefer cooler soil so do not use bottom heat.