Annabelle Hydrangea vs Prairie Crocus - TreeTime.ca

Annabelle Hydrangea vs Prairie Crocus

Hydrangea arborescens Annabelle

Pulsatilla nuttalliana (Anemone patens)

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Annabelle Hydrangea
Prairie Crocus

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.

Prairie Crocus is a native perennial wildflower that is often considered one of the first signs of spring. The flowers can range from purple, pale blue, to white and often appear before the snow has fully melted. It can bloom a month earlier than other spring flowers, providing an early source of pollen for a variety of pollinators.

The plant is covered in woolly white hairs, including the finely divided leaves, giving them a silvery appearance. Prairie Crocus leaves do not fully emerge until after it has bloomed. The spent blooms transform into fluffy, feathery seed heads. During the hot summer months, the Prairie Crocus goes dormant and will repeat its life cycle the following spring.

The Prairie Crocus is Manitoba’s provincial flower.

As a perennial, it dies back to the crown each winter, it will regrow from the base in the spring. Avoid disturbing the crown during late winter to ensure healthy growth the following season.

Annabelle Hydrangea Quick Facts

Prairie Crocus Quick Facts

Zone: 3a
Zone: 1b
Height: 1.2 m (4 ft)
Height: 0.2 m (0.5 ft)
Spread: 1.5 m (5 ft)
Spread: 0.2 m (0.5 ft)
Light: partial shade
Light: 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 - low
Suckering: medium


Toxicity: all parts toxic if eaten, sap can irritate skin
Foliage: fuzzy, finely divided leaves
Flowers: white, showy clusters
Flowers: pale purple, cup-shaped
Bloom time: early spring
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Other Names: american pasqueflower, crocus anemone, pasqueflower, prairie pasqueflower, prairie smoke