Ruby Snapdragons should be grown in rich, well-drained soil. Grow them in full sun, and space this tall variety 12 - 18 inches apart. After they are done blooming, trim the plants back, and they will quickly be blooming again.
They perform best in cooler summer climates. In hot regions, provide the plants with some afternoon shade.
How To Grow Snapdragons From Seeds:
The plants can tolerate a light frost, so they can be set out as early as the ground can be worked. For the earliest blooms, sow Ruby Red Snapdragon seeds indoors 6 - 8 weeks before setting the plants out.
Use quality starter mix and sow the flower seeds on the surface of the pre-moistened mix and gently press the seed in. Harden off the seedlings for 10 - 14 days before planting outdoors.
Pinch back at the time of transplanting to encourage branching. For areas with mild winters, sow Snapdragon seeds outdoors in a sheltered seedbed in late summer. Transplant the young plants into their permanent location for blooms in winter and spring.