Potomac Plumblossom-Snapdragon Seed

Product Description

A refined F1 hybrid series suitable for both field and greenhouse production. These bicolor blooms feature crisp white flowers delicately dusted with plum-colored accents, creating a sophisticated, high-contrast appearance. Classified as Group 3–4, this variety is bred for optimal performance under long days, high light levels, and warm temperatures.

The tall, sturdy stems reach 32–48 inches, making this an excellent choice for cut-flower arrangements with a vase life of 7–10 days. Additionally, the flowers are edible—they serve as a colorful garnish for salads, desserts, and beverages. The flavor is floral with a slight bitterness, so use sparingly.

Basic Information

Latin Name : Antirrhinum majus
Days to Maturity : 110 – 120 days
Life Cycle : Annual
Hybrid Status : Hybrid (F1)

Product Specifications

Plant Height : 32 – 48 inches
Packet Size : 50 seeds
Seeds per Ounce (avg.) : 168,800
Plant Spacing : 4 – 12 inches
Light Requirement : Sun to Part Shade
Soil Type : Rich, well-drained, moist soil; neutral pH preferred
Stem Length : 12 – 60 inches (as one-cut, full height; for multiple cuts, 12 – 36 inches)
Vase Life : 7 – 10 days
Storage Temperature : 32 – 40°F (0 – 4°C)

Growing Information

Germination Temperature : 70 – 75°F (21 – 24°C)
Germination Time : 7 – 14 days
Sowing Method : Transplant recommended – Surface-sow into 128-cell flats 8–10 weeks before planting out. Light is required for germination; cover only enough to hold seeds in place. A fine layer of vermiculite can maintain moisture and prevent algae. Bottom water or mist lightly to avoid displacing seeds. Transplant to cell packs when first true leaves appear (approx. 3–4 weeks after sowing). Direct seeding is not recommended.
Pinching : Recommended if branching is desired – pinch back by half when plants have 4–6 leaves or are 3–4 inches tall. Note that pinching delays flowering by a few weeks. If pinching, space plants 6–12 inches apart.
Spacing in Garden : 4 – 12 inches (6 – 12 inches if pinched)
Frost Sensitivity : Grown as annual; protect from frost.
Harvest : Cut when florets on the lower 1/3 to 1/2 of the spike are open.

Other Information

Pest Resistance : Monitor for aphids, thrips, and spider mites; common in greenhouse production.
Disease Resistance : Susceptible to rust, powdery mildew, and downy mildew in humid conditions – ensure good air circulation and avoid overhead watering. Root rot may occur in poorly draining soils.
Edible Use : Flowers are edible – use as a colorful garnish for salads, desserts, and drinks. Flavor is floral and slightly bitter; use sparingly.
Special Notes : Light is required for germination – do not bury seeds deeply. Group 3–4 classification means this variety performs best in warm conditions with long day length. Pinching delays bloom but significantly increases branching and total flower production.