Harris Seeds Rudbeckia Prairie Sun Seed
Best showy annual for gardeners seeking vibrant, long-lasting cut flowers.
These massive, golden blooms bring an architectural scale to the garden that most annuals simply can't match. While you sacrifice the longevity of a perennial, you gain a reliable, high-impact showstopper that thrives in bouquets and containers alike.
$5.59
at
Harris Seeds
Who it's for
- Gardeners seeking long-lasting color throughout the entire season
- Landscapers wanting high-impact, unique floral displays
- Florists and hobbyists needing reliable, long-lasting cut flowers
Who should skip it
- Novice gardeners lacking specialized seed-starting equipment
- Gardeners in humid climates prone to fungal issues
- Gardeners preferring low-maintenance, permanent perennial plantings
Performance breakdown
Bloom Impact
Massive six to eight-inch flowers create an undeniable visual focal point.
Germination Reliability
Consistent seven to twelve-day sprout times ensure predictable garden planning.
Cut Flower Longevity
Sturdy stems and large heads make these ideal for fresh arrangements.
Garden Vigor
Robust growth habits deliver reliable performance across most climate zones.
Production Efficiency
Optimized for six-inch pot production with predictable maturation timelines.
Aesthetic Versatility
Unique pale green centers offer a sophisticated twist on classic gold.
Key Specs
Plant Height
28-32"
Plant Spread
18-24"
Maturation Days
95 Days
Soil Temperature
70-75°F
Germination Days
7-12 Days
Grow on Temperature Day
60-65°F
Grow on Temperature Night
50-55°F
Planting Method
Transplant
Know before you buy
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