Annabelle Hydrangea vs Black-Eyed Susan - TreeTime.ca

Annabelle Hydrangea vs Black-Eyed Susan

Hydrangea arborescens Annabelle

Rudbeckia hirta

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Annabelle Hydrangea
Black-Eyed Susan

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.

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.

Annabelle Hydrangea Quick Facts

Black-Eyed Susan Quick Facts

Zone: 3a
Zone: 3a
Height: 1.2 m (4 ft)
Height: 0.8 m (2.5 ft)
Spread: 1.5 m (5 ft)
Spread: 0.5 m (1.5 ft)
Light: partial shade
Light: full sun
Moisture: normal
Moisture: dry, normal
Growth rate: fast
Growth rate: very fast
Life span: medium
Life span: short
Suckering: medium
Suckering: none
Maintenance: medium


Flowers: white, showy clusters
Flowers: bright yellow; daisy-like
Bloom time: early summer to fall
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: SK, MB, ON
Other Names: hairy coneflower