Dahlia 'Otto's Thrill' Bulbs
Best choice for gardeners wanting dramatic, long-lasting blooms for floral arrangements.
Introducing Dahlia 'Otto's Thrill', a magnificent dinnerplate variety recognized with the RHS Award of Garden Merit. This dahlia boasts enormous 8- to 10-inch blooms in stunning shades of pink, coral, and multi-color. Its robust, upright stems reach 3 to 4 feet, making it ideal for the back of borders or containers. Enjoy a continuous display of blooms from late summer until the first frost, perfect for cutting and arranging in bouquets. This tender perennial thrives in sunny locations with well-drained soil.
$40.95
Owner Satisfaction
4.7
/ 5
Category Rank
16
/ 3259
#16 in Plant & Flower Bulbs
Price vs Category Average
+74%
Above average
Pack Size
5
/ tubers
Who it's for
- Landscapers needing versatile colors that complement existing garden palettes
- Gardeners seeking high-impact, show-stopping floral focal points
- Floral designers wanting a steady supply of long-stemmed blooms
Who should skip it
- Beginners discouraged by constant monitoring for garden pests
- Low-maintenance gardeners who prefer hands-off plant support
- Busy homeowners in cold climates avoiding seasonal tuber storage
Performance breakdown
Bloom Impact
Massive dinnerplate flowers create an undeniable focal point in any garden.
Structural Integrity
Sturdy stems reliably support heavy blooms without constant staking requirements.
Floral Longevity
Continuous flowering from late summer through frost maximizes seasonal garden color.
Arrangement Versatility
Exceptional stem length and bloom size make these perfect for bouquets.
Cultivation Ease
Straightforward planting requirements make this accessible for most home gardeners.
Climate Flexibility
Strict hardiness zone requirements limit success to warmer, frost-free climates.
Key Specs
Pack Size
5 tubers
Mature Height
4 Feet (approx. 122 cm)
Mature Width
2 Feet (approx. 61 cm)
Hardiness Zones
9 - 11
Planting Depth
3 inches (approx. 7.62 cm)
Spacing
18 to 24 inches apart
Item Form
Tuber
Sun Exposure
Full Sun
Features
- Produces huge 8-10 inch dinnerplate blooms
- Strong, sturdy stems support tall growth
- Continuous blooms from late summer to frost
- Excellent for cut flower arrangements
- Versatile for garden beds or pots
- Upright growth habit
- Awarded RHS Garden Merit
- Easy to grow
What customers say
Gardeners rave about the Otto's Thrill bulbs, consistently highlighting their exceptional quality and reliability. The standout feature is the spectacular size of the dinnerplate blooms, which often exceed expectations in both diameter and vibrant color saturation. Customers report a very high success rate for sprouting, confirming the bulbs arrive healthy and ready to perform. This variety is celebrated for delivering dramatic visual impact, making it a dependable centerpiece for any summer garden. Its impressive blooms and reliable performance offer excellent value.
Know before you buy
This variety is classified as a dinnerplate dahlia, producing impressive, show-stopping blooms that measure between 8 and 10 inches in diameter.
While 'Otto's Thrill' features strong, sturdy stems, its mature height of 3 to 4 feet may require staking in windy or exposed garden locations to prevent the heavy blooms from drooping or snapping.
Yes, these dahlias are versatile and perform well in large containers, provided the pot has adequate drainage and is deep enough to accommodate the tuber's root system.
As tender perennials, these dahlias cannot survive freezing temperatures in the ground. In zones colder than 9, you should lift the tubers in late autumn, clean them, and store them in a cool, dry place over the winter.
For optimal growth and the most prolific flowering, plant your tubers in a location that receives full sun, which is typically at least 6 to 8 hours of direct sunlight daily.
Absolutely. Their long, upright stems and massive, vibrant blooms make them an excellent choice for cut flower arrangements, and they provide a continuous display from late summer through the first frost.
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$41