How to Grow Avignon Deep Rose II
Antirrhinum majus
Antirrhinum majus, commonly known as snapdragon, is a vibrant warm-season annual beloved for its tall spikes of colorful blooms. Gardeners prize this easy-to-grow flower for adding vertical interest to borders or containers throughout the summer months.
📷 Wikimedia CommonsStarting Avignon Deep Rose II: indoors or direct sow?
🌾 Sow directly in the garden — Avignon Deep Rose II is not usually started indoors.
Since this is a warm-season annual sensitive to cold, sow seeds directly outdoors only after all danger of frost has passed and soil temperatures have warmed up.
Soil, care & harvest
Prepare well-draining soil with a slightly acidic to neutral pH around 6.0 to 7.0. As a warm-season crop, start seeds indoors 2 to 4 weeks after your last frost date, as they are sensitive to cold. Sow seeds about 1/8 inch deep in seed trays or pots. Expect germination within 7 to 14 days under warm conditions.
Space plants 6 to 8 inches apart in containers and up to 12 to 18 inches in the field depending on density needs. These tall flowers often require staking or trellising for support against wind. Provide regular watering, ensuring soil stays moist but not waterlogged. Apply a light layer of mulch to retain moisture and feed with balanced fertilizer during active growth.
Watch for aphids and powdery mildew, which can be prevented by ensuring good air circulation and avoiding overhead watering. Harvest blooms continuously as they fade to encourage more production, typically starting around 100 to 110 days after sowing. Pinch off spent flowers at the base of the spike to extend the blooming season.
When to Plant Avignon Deep Rose II
Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.
| Zone | Start Indoors | Direct Sow | Harvest |
|---|---|---|---|
| Zone 1 | May – June | July – September | — |
| Zone 2 | April – May | June – August | — |
| Zone 3 | April – May | June – August | — |
| Zone 4 | March – April | June – July | — |
| Zone 5 | March – April | May – July | — |
| Zone 6 | March – April | May – July | — |
| Zone 7 | February – March | April – June | — |
| Zone 8 | February – March | April – June | — |
| Zone 9 | January – February | March – May | — |
| Zone 10 | January | February – April | — |
| Zone 11 | January | January – March | — |
| Zone 12 | January | January – March | — |
| Zone 13 | January | January – March | — |
Companion Plants for Avignon Deep Rose II
✓ Good companions
Ground cover that attracts beneficial insects and provides continuous white blooms
Repels aphids and ants while providing long-lasting purple blooms
Natural pest deterrent that repels aphids and improves soil health
Deters pests with strong scent and attracts pollinators, complements rose colors
Repel aphids, whiteflies, and nematodes while attracting beneficial insects
Act as trap crop for aphids and cucumber beetles, edible flowers
Repels aphids, tomato hornworms, and provides complementary colors
Attracts pollinators and beneficial insects, provides vertical interest
✗ Keep away from
Produces juglone toxin that inhibits growth and can kill sensitive plants
Allelopathic oils suppress growth of nearby plants and reduce flowering
Inhibits growth of most garden plants through allelopathic compounds
