Snapdragon flowers come in all major colors except blue, as well as in combinations of two and three hues. The long flower spikes of the upright cultivars are excellent for cutting gardens; dwarf cultivars make colorful groundcovers.
Photo: (cc) Carl Lewis/Flickr
To start seeds indoors: Sow seeds of upright cultivars 6 to 8 weeks before the last frost date; start dwarf cultivars about 4 weeks before the last frost date. Scatter seeds on the surface of the medium, but don’t cover them—they need light to germinate. Keep the soil temperature at 70° to 75°F; sprouts should appear in 10 to 20 days. Transplant the seedlings outdoors after the last frost.