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narrowleaf ironweed | Plant Finder | Fill My Garden

Home/Plants/Perennials

Plants > Perennials

narrowleaf ironweed

Vernonia lettermannii

Genus: Vernonia
Family: Asteraceae

About this plant

A clump-forming perennial with upright, smooth, leafy stems to 80cm high. Leaves are narrow and threadlike, to 9cm long but only 1-3mm wide. In late summer, flattened clusters of 10-12 small violet flowers are produced on branched stems above the foliage. Flowers are followed by grey-brown seedheads

Growing Information

Height

0.5-1 Metres

Spread

0.5-1 Metres

Hardiness

Foliage

Deciduous

Growing Conditions

Sunlight

Full SunPartial Shade

Soil

ClayChalkLoamSandy

Acid

Not Currently Available

This plant is not currently stocked at any garden centres on our platform.

Alkaline

Neutral

Moisture

Poorly DrainedWell Drained

Aspect

South FacingWest FacingEast Facing

Exposure

ShelteredExposed

Care Guide

Cultivation

Grow in a light, moderately fertile, moist soil preferably in full sun but will tolerate partial shade

Pruning

Deadhead to prolong flowering and, if necessary, to prevent self-seeding

Propagation

Propagate by seed or by division; will self seed freely if not deadheaded

Pests

Generally pest-free

Diseases

Generally disease-free

Garden Uses

Uses

Ground CoverWildflower Meadow

Planting Places

GreenhouseOutdoor

Season of Interest

SpringSummerAutumn

Size & Characteristics

Height

0.5-1 Metres

Spread

0.5-1 Metres

Habit

Clump Forming

Time to Full Height

Two To Five Years