
Missouri ironweed
Vernonia missurica
Missouri ironweed is a tough, upright native perennial producing vivid purple flower clusters in late summer that are irresistible to butterflies and bees. It grows best in average to moist soils with full sun to partial shade and requires very little maintenance once established. Cut back in late winter to encourage vigorous new growth the following season.
Care Level
Low
Sun
Partial Shade
Water
Moderate
Growth Rate
Moderate
Mature Height
12″ – 48″
Soil
loam
Life Cycle
Perennial
Spacing
24″
Watering Schedule
Every 10-14 Days • Water Moderately; Soil Can Dry Out Partially Between Waterings Once Established
Soil pH
5 – 7
Temperature
-25° – 95°F
Mature Spread
up to 48″
Root Depth
Medium
Foliage
Coarse
Propagation: Seed, Division, Cutting
Native to
Attracts
Sources
Data: trefle
Image: trefle.io — Taken Aug 18, 2014 by EOL − caseyzill (cc-by-nc)
No nurseries currently have this species in stock.