Opus III Early Bronze, (F1) Snapdragon Seeds

Opus III Early Bronze (F1) Snapdragon Seed

Full orange-bronze heads bring extraordinary autumn richness
Florets appear fuller and more dazzling
Field and greenhouse performance remains strong
Long stems excel in bouquets

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Key Attributes

Botanical Name

Antirrhinum majus

Days to maturity

110 Days

Sun

Full Sun

Packet

50 Seeds

About Opus III Early Bronze, (F1) Snapdragon Seed, Snapdragon Seed

Produces vibrant, orange-bronze blooms on full heads. The florets have a bit more dazzle and fullness than other snapdragons. Excellent performance in the field or greenhouse. Great for cut-flowers and bouquets.

Growing details

Planting

Sow Depth

Top of Soil

Days to Germination

7–14 days

Germination Type

D - Surface Sow

In-row plant spacing

6-12"

Plant profile

Life Cycle

Annual

Plant Height

24 inches

Growth Habits

Upright

Seed & variety

Seeds Per Ounce

185,000

Color

Copper

Seed Type

Hybrid

Before Planting

Snapdragon grows best in a full-sun site with well-drained soil and good air circulation. Remove perennial weeds, loosen compacted ground, and incorporate modest compost without making the bed overly rich. Prepare a fine, firm seedbed. Because light aids germination, prepare to surface sow or press seed into the medium without a heavy covering.

Planting

Start snapdragons indoors 8–10 weeks before the last spring frost. Surface-sow the light-requiring seed, maintain about 65–70°F, and keep the medium evenly moist. After emergence, provide bright light and cooler conditions to prevent stretching. Thin to one seedling per cell, harden gradually, and transplant in early spring because established plants tolerate light frost.

Watering

Provide snapdragon with even moisture during active growth and flowering. Water deeply at soil level when the upper soil begins drying, avoiding both severe wilting and saturated conditions.

Fertilizer

Established snapdragon may receive a diluted balanced or bloom fertilizer when soil fertility is low or growth begins to fade. Excess nitrogen produces soft foliage and fewer blooms.

Harvesting

Cut snapdragon flowers when blooms are well colored and at the opening stage best suited to display. Harvest during the cool morning with clean shears, leaving healthy foliage for continued flowering.

Tips

Pinch young snapdragon plants to encourage branching when appropriate, then deadhead regularly to extend flowering. Succession plantings can maintain color after the earliest plants decline.

Pests & Diseases

Snapdragons are prone to rust, Botrytis, downy mildew, powdery mildew, and root rot. Choose rust-resistant varieties, inspect lower leaves for orange pustules, and remove infected plants early. Space seedlings well, deadhead moldy flowers, and avoid carrying diseased plants or debris through winter.

Aphids and thrips may cluster on snapdragon buds, while mites, Japanese beetles, slugs, and caterpillars feed elsewhere. Remove badly damaged growth, collect visible pests, and choose pollinator-conscious controls only when monitoring shows a need.