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Tickseed Sunflower, Bur Marigold, Swamp Beggarticks, Bearded Beggarticks
Bidens aristosa

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Bidens (BY-denz) (Info)
Species: aristosa (a-ris-TOE-suh) (Info)
Synonym:Bidens aristosa var. fritcheyi
Synonym:Bidens aristosa var. mutica
Synonym:Bidens aristosa var. retorsa
Synonym:Bidens involucrata

Category:

Annuals

Biennials

Perennials

Height:

36-48 in. (90-120 cm)

Spacing:

15-18 in. (38-45 cm)

Hardiness:

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:

Full Sun

Danger:

N/A

Bloom Color:

Bright Yellow

Bloom Time:

Mid Summer

Late Summer/Early Fall

Foliage:

Herbaceous

Other details:

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

Average Water Needs; Water regularly; do not overwater

Requires consistently moist soil; do not let dry out between waterings

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

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:

Unknown - Tell us

Propagation Methods:

From seed; direct sow outdoors in fall

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

From seed; stratify if sowing indoors

From seed; sow indoors before last frost

From seed; direct sow after last frost

Seed Collecting:

Allow seedheads to dry on plants; remove and collect seeds

Regional

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

Hinsdale, Illinois

Benton, Kentucky

Brookeville, Maryland

Valley Lee, Maryland

Marietta, Mississippi

Williamsburg, Ohio

show all

Gardeners' Notes:

1
positive
3
neutrals
0
negatives
RatingContent
Neutral

On Jan 5, 2007, frostweed from Josephine, Arlington, TX (Zone 8a) wrote:

Tickseed Sunflower, Bur Marigold, Swamp Beggarticks, Bearded Beggarticks Bidens aristosa is Native to Texas and other States.

Neutral

On Feb 4, 2006, raisedbedbob from Walkerton, VA (Zone 7a) wrote:

They are known around here as Beggar's Lice, and they are as commaon as pig tracks. My wife loves them as cut flowers. My Airedale Terrier loves to nibble me as I attempt to remove the "Lice" from her coat.

Positive

On Jan 3, 2005, melody from Benton, KY (Zone 7a) wrote:

One of the most attractive and cheerful sights along the roadways and fencerows each fall. These sunny yellow blooms clump in great waves wherever they are allowed to grow. Cattle won't graze them ,so they are a common pasture resident also.

The stickery little seeds attach themselves to animal fur and are transported to other locations with ease.

Neutral

On Jan 25, 2003, lupinelover from Grove City, OH (Zone 6a) wrote:

This may be a very appreciated wildflower to grow in a meadow. Thoreau said of it "It is a splendid yellow...Full of the sun." Birds and butterflies really go for it too.