Rudbeckia Irish Spring Seed
Best choice for gardeners seeking compact, vibrant blooms for container displays.
These seeds deliver massive, five-inch blooms with a striking green eye that instantly elevates any seasonal display. While the compact habit makes them perfect for container gardening, you sacrifice the sprawling, wild aesthetic of traditional varieties for a tidy, professional-grade finish.
$8.70
at
Harris Seeds
Who it's for
- Gardeners seeking unique, eye-catching floral displays
- Beginners needing reliable, high-germination seeds
- Floral designers wanting long-lasting, sturdy cut flowers
Who should skip it
- Gardeners wanting low-maintenance, permanent perennial plantings
- Gardeners in humid climates without ideal airflow
- Novice growers preferring easy, direct-sow seed varieties
Performance breakdown
Bloom Impact
Massive five to seven-inch flowers provide immediate, high-visibility garden drama.
Commercial Viability
Compact growth habit makes these ideal for efficient six-inch pot production.
Germination Reliability
Untreated seeds offer consistent, predictable results within a standard two-week window.
Visual Distinctiveness
The unique green eye adds a sophisticated twist to classic yellow blooms.
Growth Manageability
Predictable height and spread simplify planning for seasonal container displays.
Cultivation Efficiency
Ninety-day maturation cycle requires patience but rewards with long-lasting floral color.
Key Specs
Plant Height
30-36 inches
Plant Spread
18-24 inches
Maturation Days
90 Days
Soil Temperature for Germination
70-75°F
Germination Days
7-12 Days
Grow on Temperature (Day)
60-65°F
Grow on Temperature (Night)
50-55°F
Seed Count
250 seeds
Seed Form
RAW, UNTREATED
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