Panicle Hydrangea vs Blue Flax - TreeTime.ca

Panicle Hydrangea vs Blue Flax

Hydrangea paniculata

Linum lewisii

CUSTOM GROW

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Panicle Hydrangea
Blue Flax

Panicle Hydrangea is a large, broad-leaf, deciduous shrub that is prized for its ornamental appeal. It is easy to care for, long-lived, and cold-hardy.

Depending on the variety, its flowers change color throughout the blooming period. Make sure you water Panicle Hydrangeas regularly to achieve the most notable color change.

Blue Flax is a native perennial wildflower known for its blue to violet flowers. Each flower lasts just a single day, but new blooms appear continuously, providing weeks of colour. This extended flowering period provides a reliable display from late spring into summer and attracts a variety of pollinators.

They can self-seed readily, so removing spent blooms helps manage their spread. Birds feed on the seeds, and when cooked, they are edible and are described as having a mild, nutty flavour. The plant grows in loose clumps with slender stems and fine foliage. Young plants are leafy, but as they mature, most leaves are shed.

Blue Flax grows well in a wide range of soils, including poor or sandy conditions, and is drought-tolerant once established. The deep root system helps to stabilize soil and prevent erosion. They are well-suited for pollinator gardens, restoration, naturalization, and xeriscaping projects.

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.

Panicle Hydrangea Quick Facts

Blue Flax Quick Facts

Zone: 3a
Zone: 3a
Height: 6 m (20 ft)
Height: 0.6 m (2.0 ft)
Spread: 3 m (10 ft)
Spread: 0.3 m (1.0 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: normal
Moisture: dry, normal
Growth rate: fast
Growth rate: fast
Life span: short
Life span: short
Growth form: upright, rounded, clump-forming
Spreading: seeds - high
Suckering: medium
Maintenance: medium


Toxicity: toxic to some animals, raw seed toxic
Flowers: white, strong scent, very showy
Flowers: pale to deep blue-violet
Bloom time: late spring to mid summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Other Names: white panicle hydrangea
Other Names: lewis flax, lewis wild blue flax, prairie flax, wild blue flax