Chimborazo
Crimson outer petals framing a buttery yellow heart that bees adore.

Photo by Admin
Collarette · 2–4"Red
Chimborazo pairs deep crimson-red petals with a contrasting buttery yellow center, creating one of the most recognizable open-faced blooms in the garden. The pollen-rich flowers pull in bees and hoverflies from first bud to frost, making it a favorite for pollinator borders and cottage plantings. Upright stems hold blooms well for cutting while continuing to produce through the season.
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Specifications
Physical
- Form
- Collarette
- Bloom class
- Munder 4"
- Bloom size
- 2–4"(5.1–10.1 cm)
- Plant height
- 39–59"
Color
- Color
- Red/Yellow
- Pattern
- Bicolor
- Tags
- redyellowcrimsonbicolor
Growing context
- Flowering season
- Mid season
- Cut flower
- ✓ Yes
Grower Profile
Difficulty
Ideal for
Growing Chimborazo
Plant tubers after the last frost in fertile, well-drained soil and full sun, spacing plants generously for airflow. Stems reach chest height, so a stake or corral of twine keeps the open flowers upright during summer storms. Pinch the central shoot at four leaf pairs to encourage branching, then deadhead regularly to keep the pollinator-friendly blooms coming from midsummer until first frost. In cold climates, lift tubers after frost blackens the foliage, dry briefly, and store in barely damp vermiculite until spring.
- Spacing
- Space roughly 2–3 ft apart
- Staking
- Stake early — stems carry heavy blooms and lean in wind
Frequently asked questions
How tall does Chimborazo dahlia grow?
Chimborazo reaches 39–59" at maturity, so plan to stake plants early to keep heavy blooms upright.
When does Chimborazo dahlia bloom?
Chimborazo is a midseason bloomer, in flower from midsummer through first frost.
Is Chimborazo dahlia good for cut flowers?
Yes — Chimborazo is well suited for cutting.
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