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Bouquet of red snapdragon flowers against a green background

Potomac Red Snapdragon

$599
  • Vibrant deep red blooms on tall, upright stems
  • Strong stems and long flower spikes for premium cuts
  • Ideal for greenhouse or high tunnel production
  • Performs best under high light and warm temperatures
  • Group 3–4 variety with excellent vase life and uniformity
  • Days to Maturity: 110-120
  • Height: 39–60” tall; perfect for summer cut flower harvests

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Description

The Potomac Red Snapdragon (Antirrhinum majus) is part of the renowned Potomac series — known for its strong stems, long flower spikes, and dependable performance under high light and warm conditions. With striking, deep red blooms that add drama and richness to any floral display, this Group 3–4 variety is ideal for summer production in greenhouses or high tunnels.

Each stem reaches 39–60 inches tall, producing uniform, high-quality flowers perfect for cut flower growers. The Potomac Red offers excellent vase life and consistent color intensity, making it a staple for professional growers and home gardeners alike.

Growing Information

Potomac Red Snapdragon Planting Information

Plant Type: Annual

Scientific Name: Antirrhinum majus

Common Name: Snapdragon, Cut Flower

Series: Potomac

Color: Red

Group: 3–4

Plant Habit: Upright

Height (in.): 39–60 (99–152 cm)

Exposure: Full Sun

Blooming Season: Late Spring, Summer, Late Summer

Best For: Greenhouse, high tunnel production

Cultural Recommendations:

  • Stem Length: 39–60 inches
  • Planting Density/Spacing: 6–12 inches with support netting/trellising; high-density planting under bright light or field conditions
  • Soil pH: 6.5–7.0
  • Moisture: Moderate; well-drained soil
  • Sun Requirement: Full Sun; performs best under longer days and higher temperatures (Group 4)
  • Seasonal Application: Early/late spring
  • Finishing: Early summer—fall
  • Sowing: Early/late spring

Days to Germinate: 7–14 days at 70–75°F; needs light to germinate

Planting Depth: Cover lightly with vermiculite

Plug Finish Time: 4–5 weeks

Transplant: 4–6 weeks after sowing

Transplant to Finish: 8–10 weeks (up to 18 weeks in suboptimal conditions)

Additional Information

Notes:

  • Performs best during high-light periods and warm temperatures.
  • Produces strong, tall stems with long, uniform flower spikes.
  • Excellent for year-round growing when supplemental lighting is used.
  • Offers top flower quality and rich color consistency for professional growers.