Black-Eyed Susan vs Early Blue Violet - TreeTime.ca

Black-Eyed Susan vs Early Blue Violet

Viola adunca

Rudbeckia hirta

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NOT AVAILABLE THIS SEASON - MIGHT RETURN

Early Blue Violet
Black-Eyed Susan

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.

Black-Eyed Susan is a striking native wildflower known for its bright yellow, daisy-like flowers with dark center disks. With deadheading, the plant can bloom for an extended period, from mid-summer to early fall. These cheerful flowers attract a variety of pollinators, including bees and butterflies. Adding to its ecological value, the plant also acts as a host for the Wavy-Lined Emerald Moth (Synchlora aerata) and the Silvery Checkerspot (Chlosyne nycteis) butterfly.

While it is typically a short-lived perennial or biennial, the plant freely self-seeds. This allows it to persist in the landscape, particularly in natural areas where it can spread and establish itself. This plant is drought-tolerant, salt-tolerant, and deer and rabbit-resistant, making it ideal for challenging environments. The Black-Eyed Susan is well suited to wildflower gardens, pollinator gardens, as well as slopes, banks, and naturalized areas.

Early Blue Violet Quick Facts

Black-Eyed Susan Quick Facts

Zone: 2a
Zone: 3a
Height: 0.1 m (0.3 ft)
Height: 0.8 m (2.5 ft)
Spread: 0.2 m (0.5 ft)
Spread: 0.5 m (1.5 ft)
Light: partial shade, full sun
Light: full sun
Moisture: dry, normal
Moisture: dry, normal
Growth rate: fast
Growth rate: very fast
Life span: short
Life span: short
Growth form: low growing, clump-forming
Spreading: seeds - medium, rhizomes - medium
Suckering: none
Maintenance: medium
Maintenance: medium

Toxicity: rhizomes, fruit, seed poisonous to humans

Flowers: purple to blue-violet
Flowers: bright yellow; daisy-like
Bloom time: mid spring to early summer
Bloom time: early summer to fall
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


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