Neon Flash Spiraea vs Blue Flax - TreeTime.ca

Neon Flash Spiraea vs Blue Flax

Linum lewisii

Spiraea japonica Neon Flash

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Blue Flax
Neon Flash Spiraea

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.

Neon Flash Spiraea is a colorful, low maintenance, and multi-purpose shrub.

Late spring to fall you'll be drawn to its vibrant neon red blooms that rest on a neat mound of green foliage. If deer and rabbit are an issue on your property, consider planting Neon Flash Spiraea for its deer/rabbit resistance. Its tolerance of a variety of well-drained soils makes it an ideal foundation, landscaping, or border plant.

Blue Flax Quick Facts

Neon Flash Spiraea Quick Facts

Zone: 3a
Zone: 3a
Height: 0.6 m (2.0 ft)
Height: 0.9 m (3 ft)
Spread: 0.3 m (1.0 ft)
Spread: 0.9 m (3 ft)
Light: partial shade, full sun
Light: full sun
Moisture: dry, normal
Moisture: normal
Growth rate: fast
Growth rate: medium
Life span: short
Life span: short
Growth form: upright, rounded, clump-forming
Spreading: seeds - high
Suckering: low
Maintenance: medium

Toxicity: toxic to some animals, raw seed toxic

Fall colour: burgundy bronze
Flowers: pale to deep blue-violet
Flowers: pale to bright pink
Bloom time: late spring to mid summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Other Names: lewis flax, lewis wild blue flax, prairie flax, wild blue flax