Growing Ammi majus, commonly known as bishop's flower or queen Anne's lace (buy Ammi majus seeds here), from seed is a rewarding experience that yields delicate, lacy white blooms perfect for fresh arrangements and pollinator gardens. This guide walks you through the essentials for success.
Starting Seeds Indoors
Begin your Ammi majus seeds indoors 6–8 weeks before your last expected frost date. Fill seed trays with moist seed-starting mix and scatter seeds across the surface. These seeds need light to germinate, so press them gently into the soil without covering them completely—a thin dusting of soil is sufficient. Mist lightly to keep the surface moist and place the tray in a warm location with bright, indirect light. Germination typically occurs within 7–14 days at temperatures between 65–75°F.
Transplanting Seedlings
Once seedlings develop their first true leaves, thin them out or transplant them into individual small pots. Handle seedlings gently by their leaves, never their delicate stems. Keep the soil consistently moist but not waterlogged. Provide plenty of light—a south-facing windowsill or grow lights work well. If seedlings become leggy, increase light intensity or move them closer to your light source.
Hardening Off
About 7–10 days before transplanting outdoors, begin hardening off your seedlings. Place them outside in a sheltered, shady spot for a few hours on the first day, gradually increasing sun exposure and time outdoors over the course of a week. This acclimates them to outdoor conditions and prevents transplant shock.
Direct Sowing Outdoors
If you prefer direct sowing, wait until after your last frost date. Prepare a well-draining bed by loosening the soil and removing weeds. Scatter seeds directly where you want them to grow, press lightly into the soil, and water gently. Seeds will germinate in similar timeframes as indoor-started seeds. Thin seedlings to about 12–18 inches apart once they develop true leaves.
Growing Conditions
Ammi majus thrives in full sun to partial shade and prefers well-draining soil. While it tolerates average soil, it doesn't need heavy feeding. Water regularly during the growing season, especially during dry spells, but avoid overhead watering when possible to reduce disease. Pinch back young plants when they're 6 inches tall to encourage bushier growth and more blooms.
