Spike Dahlia
Description
Spike delivers dramatic, spiky cactus-style blooms with long, finely pointed petals that create a bold, high-energy look in the garden and vase. The flowers sit on strong stems and bring lively texture and movement to mixed plantings and cut-flower arrangements, blooming generously from midsummer until frost.
Specifications
| Form | C |
|---|---|
| Color | W |
| Bloom size | 8.8" |
| Plant height | 3.3 ft |
| Hybridizer | Frasier |
| Year introduced | 1967 |
| Country of origin | USA |
How to grow Spike
Spike is a C with 3.3 ft tall with 8.8-inch blooms. Plant tubers 12–18 inches apart in full sun after the last frost. Pinch when plants reach 12 inches tall to encourage bushier growth and more blooms.
Harvest & vase life
C-form dahlias like Spike harvest dahlias when blooms are three-quarters to fully open. With clean cuts and fresh water, most varieties last 4–7 days in the vase.
Similar dahlia varieties
- Erpeler Ley — C, BR
- Sandia Barbie — C, DP
- AC Anna Lisa — C, LB
- AC Lucille — C, FL
- Devon Savannah — C, Y
- Hollyhill Cheerio — C, BI
Frequently asked questions
How tall does Spike grow?
Spike grows to about 3.3 ft.
What color is Spike?
W — ADS color classification for Spike.
Who hybridized Spike?
Frasier, introduced in 1967.
Is Spike good for cut flowers?
Yes. Dahlias are among the most popular cut flowers for home and market growers. Expect 4–7-day vase life with proper hydration.