Planting Snapdragons in Spring: Frost Timing and Indoor Holding for Sonnet Bronze

Snapdragons Are Cool-Season Annuals

They tolerate light frost but not hard freezes. Plant outdoors after your last frost date.

Indoor Holding (If Frost Still Likely)

• Keep in tray in bright south/east window.
• Water when top of soil is dry.
• Fertilize weakly (¼ strength) once weekly.
• Pinch tops at 4–6 inches to encourage branching.

Transition Outdoors

Harden off 7–10 days before planting. Space 8–12 inches in full sun, rich soil. They’ll bloom through early summer, pause in heat, resume in fall.