Dahlia Sincerity Rose Bicolour

2025 herbaceous plant of the year

Common Name:
Dahlia 'Sincerity' (Rose Bicolour)

Description:
Dahlia 'Sincerity' is a striking, eye-catching variety celebrated for its large, decorative blooms showcasing a soft rose-pink base elegantly tipped with creamy white edges. Each flower presents a layered, symmetrical form, adding a touch of elegance and drama to any garden or floral arrangement. These dahlias thrive in rich, well-draining soils and prefer a position that receives full sun for optimal blooming. In Melbourne, they perform best when planted after the last frost, with flowering typically beginning in mid to late summer and continuing into autumn. Regular deadheading encourages a longer blooming season. While not frost-tolerant, tubers can be lifted and stored over winter for replanting the following season. Ideal for both garden beds and large containers, Dahlia 'Sincerity' adds vibrant colour and structured beauty during the warmer months.

Form:
*Shrub - Small
*Shrub - Clumping / Grass-like / Mounding

Mature Size:
*Height: 80–100 cm
*Width: 50–70 cm

Aspect:
*Full Sun

Flowering:
*Flowers in Summer
*Flowers in Autumn

Flower Colour:
*Rose-pink
*Creamy white
*Bicolour

Key Attributes:
*Suitable for Pots
*Bee Attracting
*Herbaceous
*Perennial (treated as annual in cooler climates)
*Scented flowers (mild)
*Excellent as a cut flower

Toxicity:
Mildly toxic to pets (dogs and cats) if ingested; may cause gastrointestinal upset.

Companion Plants:
*Salvia
*Cosmos
*Zinnias
*Lamb's Ear
*Marigold
*Snapdragons