High Country Gardens
Karma Corona Semi-Cactus Dahlia
Best low-maintenance choice for gardeners wanting vibrant, long-lasting cut flowers.
The Karma Corona Semi-Cactus Dahlia offers stunning salmon-orange blooms with soft yellow centers, blooming continuously from mid-summer until the first frost. Its strong, upright stems and dark green foliage make it an excellent choice for cut flowers, providing a long vase life. Growing to a mature height of 36-40 inches, this variety is easy to grow, pest-resistant, and suitable for container planting. Native to Mexico and Central America, it thrives in full sun and is perennial in zones 8-10, requiring overwintering in cooler climates.
$20.99
Owner Satisfaction
4.6
/ 5
Category Rank
726
/ 3183
#726 in Plant & Flower Bulbs
Price vs Category Average
-11%
Below average
Mature Height
3640
/ - inches
Who it's for
- Gardeners seeking high-impact, dramatic focal points
- Floral designers needing long-lasting, sturdy stems
- Homeowners wanting vibrant color through late autumn
Who should skip it
- Beginners discouraged by frequent pest management routines
- Busy gardeners avoiding seasonal storage and replanting
- Low-maintenance enthusiasts preferring hands-off plant care
Performance breakdown
Bloom Longevity
Continuous flowering from mid-summer until the first frost is exceptional.
Cut Flower Utility
Strong stems and impressive vase life make these perfect for arrangements.
Pollinator Appeal
Vibrant colors and nectar availability reliably draw butterflies and hummingbirds.
Maintenance Ease
Pest-resistant nature and minimal staking requirements simplify the gardening process.
Container Versatility
Compact enough for pots while maintaining a substantial, eye-catching height.
Climate Adaptability
Thrives in warmer zones but requires extra effort for overwintering elsewhere.
Key Specs
Mature Height
36-40 inches
Hardiness Zones
8-10 (Perennial), Zones 3-11 (Annual/Treated)
Ships As
Bulb, Rhizome, Tuber
Planting Depth
1 to 2 inches below soil line
Spacing
1 bulb/tuber per sq. ft.
Soil Moisture Requirement
Average
Toxicity
Tubers and leaves toxic if eaten in large amounts
USDA Hardiness Zone
Zone 3, Zone 4, Zone 5, Zone 6, Zone 7, Zone 8, Zone 9, Zone 10
Features
- Attracts butterflies and hummingbirds
- Long bloom time from mid-summer to frost
- Easy to grow and pest resistant
- Excellent for cut flowers
- Suitable for container planting
- Strong stems, often needs no staking
- Gorgeous salmon-orange blooms
- Blooms all summer long
What customers say
Customers consistently highlight the exceptional quality and reliability of the Karma Corona Dahlia tubers. Reviewers frequently report robust, healthy stock that sprouts dependably, minimizing the common frustration of gardening failures. The overwhelming positive feedback centers on the stunning design; the semi cactus blooms deliver dramatic texture and vibrant, unique color payoff. This reliable performance and visual impact solidify the product's high value, making it a worthwhile investment for gardeners seeking show stopping results.
Know before you buy
Generally, no. This variety features strong, upright stems that are sturdy enough to support the blooms without additional staking in most garden conditions.
Yes, the Karma Corona is well-suited for container gardening. Ensure your pot has adequate drainage and is large enough to accommodate the plant's 36-40 inch mature height.
In zones 3-7, you should dig up the tubers after the first frost, clean off the soil, and store them in a cool, dry, frost-free location over the winter. They can be replanted in the spring once the danger of frost has passed.
You can expect continuous blooms from mid-summer until the first frost of the season. Regular deadheading can help encourage this extended flowering period.
Absolutely. Their strong stems and long vase life make them an excellent choice for cut flower arrangements.
The Karma Corona thrives in full sun, which means it requires at least six to eight hours of direct sunlight per day for optimal growth and blooming.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$21