Antirrhinum or Snapdragons have stalks of brightly colored flowers that are especially profuse in cooler weather. Most are intensely colored and real standouts in the garden. They will bloom most profusely in full sun to partial shade, in the spring. Once the temperature heat up though, they may stop blooming. Planting them in partial shade and keeping them well watered will help them make it through the summer. Snapdragons like a neutral soil pH and are not heavy feeders. However, adding organic matter will help keep them healthy and blooming.
Regular deadheading will keep your snapdragons blooming longer. They won’t need much care early in spring, but mulching to keep the soil cool and moist can help them handle summer better.