Snapdragon Royal – “Antirrhinum Potomac”

Antirrhinum ‘Potomac Royal’ is a premium snapdragon variety bred for cut flower production, producing tall, elegant stems topped with deep royal-purple blooms that exude richness and sophistication. Part of the renowned Potomac series, this variety is celebrated for its excellent vase life, uniform flowering, and strong performance in warmer climates—making it a standout choice for commercial growers, florists, and home gardeners alike.

How to Grow Antirrhinum ‘Potomac Royal’ Plugs:

Planting Time:
Late summer to early autumn, or early spring after frost has passed

Position:
Full sun (at least 6 hours daily) in a sheltered, open position

Soil:
Rich, well-draining soil with good moisture retention
pH: Slightly acidic to neutral (6.0–7.0)

Spacing:
20–30 cm apart in rows or garden beds
For cut flower production: space closer for straighter stems

Watering:
Keep soil consistently moist, especially during dry periods
Avoid overhead watering to reduce risk of fungal disease

Feeding:
Apply a balanced liquid fertilizer every 2–3 weeks during active growth
Boost with potassium-rich feed once budding begins

Staking:
Recommended for tall stems to prevent bending or snapping in wind

Where to Plant or Use:

• Cut Flower Beds: Excellent for high-end bouquets and event floristry

• Formal Borders: Adds height and a touch of drama with rich colour

• Greenhouse Rows: Performs reliably in protected production systems

• Mixed Flower Fields: Pairs beautifully with whites, pinks, and pastels for striking arrangements

Why You’ll Love It:

✔️ Royal Purple Blooms: A bold, luxurious colour for premium arrangements
✔️ Strong, Tall Stems: Perfect for cutting, with minimal staking
✔️ Reliable Potomac Series Genetics: Excellent uniformity and heat tolerance
✔️ Florist Favourite: Superior stem quality and vase life
✔️ Performs Well in SA Conditions: Thrives in moderate to warm zones with proper care