Bitterweed, Sneezeweed
Helenium tenuifolium

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Helenium (hel-EE-nee-um) (Info)
Species: tenuifolium (ten-yoo-ih-FOH-lee-um) (Info)
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Category:

Annuals

Height:

12-18 in. (30-45 cm)

Spacing:

6-9 in. (15-22 cm)

Hardiness:

Not Applicable

Sun Exposure:

Full Sun

Danger:

N/A

Bloom Color:

Bright Yellow

Bloom Time:

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Foliage:

Chartreuse/Yellow

Aromatic

Smooth-Textured

Other details:

May be a noxious weed or invasive

This plant is attractive to bees, butterflies and/or birds

Average Water Needs; Water regularly; do not overwater

Self-sows freely; deadhead if you do not want volunteer seedlings next season

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:

Non-patented

Propagation Methods:

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

From seed; direct sow after last frost

Seed Collecting:

Bag seedheads to capture ripening seed

Collect seedhead/pod when flowers fade; allow to dry

Regional

This plant has been said to grow in the following regions:

Fayetteville, Arkansas

Benton, Kentucky

Amory, Mississippi

Arlington, Texas

Huntsville, Texas

Princeton, Texas

Waxahachie, Texas

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Gardeners' Notes:

1
positive
0
neutrals
2
negatives
RatingContent
Negative

On May 25, 2010, vicki1948 from Huntsville, TX wrote:

Not a friend to farmers/ranchers...can be toxic to livestock especially sheep...tough plant...can take over a field or pasture

Negative

On Jun 30, 2007, maggie63020 from De Soto, MO wrote:

This plant has taken over my horse pasture!

Positive

On Aug 18, 2004, melody from Benton, KY (Zone 7a) wrote:

A cherry little weed that isn't terribly invasive in these parts. It tends to greet you at stop signs and in vacant parking lots.

Called bitterweed for the way it makes milk taste when cows have eaten it, but for the most part , exists without doing any harm.