Rudbeckia Irish Spring Seed
Best choice for gardeners seeking compact, vibrant blooms for container displays.
Elevate your garden with the Rudbeckia Irish Spring Seed, a vibrant annual flower also known as Black-Eyed Susan. This variety produces impressive 5-7" yellow blooms, each featuring a distinctive green eye. It offers a slightly more compact plant habit, making it an excellent choice for 6" pot production and creating beautiful seasonal displays. Each packet contains 250 untreated seeds, perfect for cultivating a garden favorite or for commercial sales.
$10.88
Owner Satisfaction
4.5
/ 5
Category Rank
1419
/ 1801
#1419 in Seeds
Price vs Category Average
-42%
Below average
Plant Height
3036
/ - inches
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
Features
- Produces large 5-7" yellow blooms
- Striking green eye detail
- Compact plant habit
- Ideal for 6" pot sales
- Annual life cycle
- Untreated seeds for cultivation
- Ready for immediate shipping
What customers say
Customers overwhelmingly praise the Harris Seeds Rudbeckia 'Irish Spring' seeds, focusing on exceptional quality and unique aesthetic appeal. The viability and germination rates confirm high product standards. Gardeners particularly value the striking visual contrast: bright yellow petals against distinct lime green cones. This feature makes the resulting plants highly desirable for ornamental beds and as a premium cut flower, noted for its long vase life. Mature plants are robust, offering an extended blooming season and resilience. The consensus is that these seeds offer a superior investment, delivering a reliable, true to type, and visually spectacular Rudbeckia variety that justifies the cost through consistent, high yield floral displays.
Know before you buy
Yes, their compact habit makes them an excellent choice for 6-inch pots. They are specifically bred to maintain a manageable size while producing large, showy blooms.
You can expect germination within 7 to 12 days, provided the soil temperature is maintained between 70 and 75°F.
No, these are raw, untreated seeds. They are suitable for gardeners who prefer to avoid chemical coatings or who are practicing organic cultivation methods.
The Irish Spring variety typically reaches a height of 30 to 36 inches with a spread of 18 to 24 inches.
After germination, these plants prefer daytime temperatures between 60 and 65°F and cooler nighttime temperatures between 50 and 55°F to thrive.
While the exact number depends on your local growing conditions, this variety is known for producing impressive 5 to 7-inch blooms throughout the season.
Still have a question?
Ask Hayley anything about this product before you decide.