Annabelle Hydrangea vs Early Blue Violet - TreeTime.ca

Annabelle Hydrangea vs Early Blue Violet

Hydrangea arborescens Annabelle

Viola adunca

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Annabelle Hydrangea
Early Blue Violet

Annabelle Hydrangea is a cold hardy shrub that is well known for its large, compact clusters of white flowers. Unlike other flowering species, Hydrangeas do best in partial shade. However, they are capable of growing in full sun if the soil is kept consistently moist.

Blooms occur on new wood, so regular pruning is encouraged in late winter. Try Annabelle Hydrangea as a border or on its own.

Early Blue Violet is a low-growing native perennial wildflower valued for its striking early-spring blooms. The flowers range in color from vibrant blue to deep violet, often marked with pale highlights and fine white hairs. They provide an important early nectar source for pollinators and serve as a host plant for several fritillary butterfly species.

It spreads by both seed and rhizomes, gradually forming small colonies. Its dark green, heart-shaped leaves add ornamental appeal, and the plant shows some resistance to deer browsing. Early Blue Violet is well-suited to naturalization projects and pollinator-friendly gardens, and has also been used in coastal butterfly habitat restoration in the Pacific Northwest.

Annabelle Hydrangea Quick Facts

Early Blue Violet Quick Facts

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Zone: 3a
Zone: 2a
Height: 1.2 m (4 ft)
Height: 0.1 m (0.3 ft)
Spread: 1.5 m (5 ft)
Spread: 0.2 m (0.5 ft)
Light: partial shade
Light: partial shade, full sun
Moisture: normal
Moisture: dry, normal
Growth rate: fast
Growth rate: fast
Life span: medium
Life span: short
Growth form: low growing, clump-forming
Spreading: seeds - medium, rhizomes - medium
Suckering: medium
Maintenance: medium


Toxicity: rhizomes, fruit, seed poisonous to humans
Flowers: white, showy clusters
Flowers: purple to blue-violet
Bloom time: mid spring to early summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC, SK, MB, ON, QC, NS, NB, YT, NT
Other Names: dog violet, hookedspur violet, sand violet, western blue violet