Plant Finder
Plant Finder
perennial

Tall Ironweed

Vernonia gigantea

Add To My Wish List

 
Tall Ironweed (Vernonia gigantea) at Lindley's Nursery

Tall Ironweed flowers

Tall Ironweed flowers

(Photo courtesy of NetPS Plant Finder)

Plant Height:  6 feet

Flower Height:  8 feet

Spacing:  30 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  4b

Other Names:  Giant Ironweed

Description:

This variety is right at home in a meadow; long blooming masses of purple flowers sway in the breeze in early summer; great for borders or massed as an accent; very undemanding and drought tolerant.

Ornamental Features

Tall Ironweed has masses of beautiful ray-like plumes of purple flowers at the ends of the stems from late summer to mid fall, which emerge from distinctive dark red flower buds, and which are most effective when planted in groupings. Its serrated narrow leaves remain green in color throughout the season.

Landscape Attributes

Tall Ironweed is an herbaceous perennial with an upright spreading habit of growth. Its relatively fine texture sets it apart from other garden plants with less refined foliage.

This is a relatively low maintenance plant, and should be cut back in late fall in preparation for winter. It is a good choice for attracting bees and butterflies to your yard. It has no significant negative characteristics.

Tall Ironweed is recommended for the following landscape applications;

  • Accent
  • Mass Planting
  • General Garden Use
  • Container Planting

Planting & Growing

Tall Ironweed will grow to be about 6 feet tall at maturity extending to 8 feet tall with the flowers, with a spread of 3 feet. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 30 inches apart. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 10 years. As an herbaceous perennial, this plant will usually die back to the crown each winter, and will regrow from the base each spring. Be careful not to disturb the crown in late winter when it may not be readily seen!

This plant does best in full sun to partial shade. It is quite adaptable, prefering to grow in average to wet conditions, and will even tolerate some standing water. It may require supplemental watering during periods of drought or extended heat. It is not particular as to soil type or pH. It is highly tolerant of urban pollution and will even thrive in inner city environments. This species is native to parts of North America. It can be propagated by division.

Tall Ironweed is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. With its upright habit of growth, it is best suited for use as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. It is even sizeable enough that it can be grown alone in a suitable container. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.

Lindley’s Florida Native

This is a Florida native short lived perennial that will attract pollinators to your yard. Winter dormant, it would work best inter-planted with ever green plants.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Accent  Massing  Garden  Container 
Applications
Flowers  Attracts Wildlife 
Ornamental Features

Disclaimer: Lindley's Nursery & Plant Finder is an online resource representing many of the varieties that we carry over the course of the season, and is intended for informational purposes only. Inventory varies seasonally, so we cannot guarantee that every plant will be in stock at all times - please contact Lindley's Nursery & Garden Center 386-428-7298 directly for current availability.