Singleflower knapweed (Centaurea nervosa)

Singleflower knapweed

more or less globose involvement of up to 1.5 cm in diameter; involved bracts with black or dark brown appendages, pectinated-fimbriated, with 14 or 16 fimbriae on each side; purple tubular corolla; present vilane. Compressed achene fruit about 3 mm long. It blooms since late spring and in the summer

Scientific classification

Species

Singleflower knapweed (Centaurea nervosa)

Asters bellflowers fanflowers and allies

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Perennial

Lifespan

Herb

Plant Type

Spring, Summer, Fall

Bloom Time

40 cm to 1 m

Plant Height

30 cm to 45 cm

Spread

Purple

Flower Color

Images of Singleflower knapweed

Care Guide for Singleflower knapweed

Every week

Water

Full sun

Sunlight

15 - 35 ℃

Ideal Temperature

Water: Singleflower knapweed requires weekly watering to replicate its native rainfall, preferring consistent moisture without oversaturation. During its active growth, increased watering supports optimal development, especially in warmer temperatures, making it well-suited for outdoor cultivation.

Fertilize: For optimal health, singleflower knapweed requires balanced nutrition fertilizers monthly during the growing season. Use sparingly to avoid nutrient burn, adjusting for size and soil fertility. Water post-fertilization and apply during cooler times to reduce stress. Less fertilizer is needed in fall and minimal in winter.

Pruning: Singleflower knapweed thrives with spring pruning to enhance blooms and prevent legginess. Key methods include deadheading spent flowers and trimming overgrown stems. This practice also aids in managing diseases and pests, with sterilized tools promoting optimal plant health.

Propagation: Singleflower knapweed propagates well through cuttings from healthy, non-flowering stems with several nodes. Sterilize tools to prevent disease, dip cut ends in rooting hormone, and plant in a well-draining medium. Consistent moisture is crucial for root development without waterlogging.

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