Plant Care New York ironweed

New York ironweed

About New York ironweed

Ironweed is an herbaceous native perennial wildflower in the Aster family. It may grow 5 to 8 feet tall with deep purple flowers that appear in clusters from mid-summer to mid-fall on strong stems. It was selected as the 2004 NC Wildflower of the Year.


Vernonia noveboracensis

Also known as

New York ironweed and vein-leaf hawkweed

How to care for New York ironweed


How often to water your New York ironweed

Water needs for New York ironweed
0.5 cups
every 9

New York ironweed needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size


Check the growing potential in your area

A plant's growing potential is determined from its location, the time of year, and current local weather.

Select a city to check sunlight intensity

Finding light for New York ironweed in your home

Light needs and placement for plant New York ironweed: 1ft from a window
1ft or less from
a window

New York ironweed love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth.

New York ironweed does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of New York ironweed in your home 🏡.


How to fertilize New York ironweed

Nutrient, fertilizer, and repotting needs for New York ironweed: repot after 2X growth

Most potting soils come with ample nutrients which plants use to produce new growth.

By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.

To replenish this plant's nutrients, repot your New York ironweed after it doubles in size or once a year—whichever comes first.

Difficulty Level

New York ironweed is generally considered an easy-to-care-for plant and makes a great choice for beginners!

Water Needs
Sunlight Needs
Growth Pattern
Growing Outdoors

Care Summary for New York ironweed

New York ironweed

Greg recommends:


0.5 cups every 9 days


< 1ft from a window


Repot after 2x growth

Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.

Trending in your area

Similar to New York ironweed

Discover rare plants

This plant is popular in