Agueweed (Gentianella quinquefolia)

Agueweed

Also known as: Western agueweed

Agueweed (Gentianella quinquefolia) is a wildflower notable for being tolerant of many different habitats, so you can see its attractive purple flowers growing in damp lowlands and also on exposed ridges. This adaptation to many habitats make this a popular and easy to grow garden flower.

Scientific classification

Species

Agueweed (Gentianella quinquefolia)

Gentians, dogbanes, madders, and allies

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Annual, Biennial, Perennial

Lifespan

Herb

Plant Type

Summer, Fall

Bloom Time

23 cm to 76 cm

Plant Height

Green, Yellow, Gold, Purple, Lavender

Leaf Color

2.5 cm

Flower Size

Purple, White, Lavender

Flower Color

Green, Red, Purple, Burgundy, Lavender

Stem Color

Images of Agueweed

Quickly Identify Agueweed

Whorled lanceolate leaves

Tubular flowers in deep azure to violet

Funnel-shaped flowers with bristly tips

Capsule fruit that splits into two halves

Distinct 4-angular, winged stems

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Care Guide for Agueweed

Every week

Water

Full sun

Sunlight

Water: Originating from moist meadows and clearings, agueweed prefers consistently damp soil. Weekly watering helps maintain moisture without saturation, especially during its active growing season, promoting healthy growth and vibrant blooms.

Fertilize: Agueweed requires balanced nutrition fertilizers during active growth in spring and summer. Use a high-nitrogen formula bimonthly at quarter strength, watering the soil first. Adjust fertilization during dormancy to prevent overload, promoting vigorous growth, vibrant blooms, and enhanced resilience.

Pruning: Agueweed features delicate, star-shaped flowers and requires pruning in early to late spring. Remove dead stems to promote growth and flower production, trimming above leaf nodes. This practice enhances airflow, light penetration, and overall health while minimizing disease risk.

Propagation: Agueweed flourishes in well-drained soil and requires ample sunlight. Propagation is best achieved by sowing fresh seeds directly in place, covering lightly for seed-to-soil contact. Maintain moisture during germination and minimize disturbance to seedlings for successful establishment and growth.

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