Helenium Species, Bitterweed, Fine Leaved Sneezeweed

Heleniumtenuifolium

Family
Asteraceae (ass-ter-AY-see-ee)
Genus
Helenium (hel-EE-nee-um)
Species
tenuifolium (ten-yoo-ih-FOH-lee-um)
Synonym
Sun Exposure
Full Sun
Foliage
Shiny/Glossy
Smooth
Height
12-18 in. (30-45 cm)
Spacing
6-9 in. (15-22 cm)
Hardiness
Not Applicable
Danger
N/A
Bloom Color
Bright Yellow
Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Other Details
Category
Annuals
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Chartreuse/Yellow
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
May be a noxious weed or invasive
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
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Bag seedheads to capture ripening seed
Collect seedhead/pod when flowers fade; allow to dry
Regional

This plant is said to grow outdoors in the following regions:

Fayetteville, Arkansas

Benton, Kentucky

Amory, Mississippi

Arlington, Texas

Huntsville, Texas

Princeton, Texas

Waxahachie, Texas

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Gardener's Notes:

1
positive
0
neutral
2
negatives
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V
Huntsville, TX | May 2010 | negative

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

M
De Soto, MO | June 2007 | negative

This plant has taken over my horse pasture!

M
M
Benton, KY (Zone 7a) | August 2004 | positive

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.
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