Sow outdoors in spring in full sun after danger of frost, or in late summer 12 weeks before
ground freezes. Sow seed evenly and thinly, barely cover. Firm lightly and keep evenly moist.
Seedlings emerge in 10-21 days, depending on soil and weather conditions . To get a head Start,
Sow seeds indoors about 6-8 weeks before outdoor planting time. Keep seeds at 55-65 F.
How to Grow Penstemon
Plant outdoors after danger of frost. Thin to stand about 12" apart when seedlings are large
enough to handle. Grow in well-drained soil, in full sun in mild climates, and with afternoon
shade where summers are hot. Deadhead regularly. Cut plants to the ground in the fall and mulch
Tall flower spikes can last a week in fresh arrangements. When left to go to seed, stems with
ripe, dry seed pods are useful in dried arrangements.