Bidens Species, Butterfly Needles, Hairy Beggarticks, Spanish Needle
Bidenspilosa

Family: Asteraceae (ass-ter-AY-see-ee)
Genus: Bidens (BY-denz)
Species: pilosa (pil-OH-suh)

Category
Annuals

Water Requirements
Average Water Needs; Water regularly; do not overwater

Sun Exposure
Sun to Partial Shade

Foliage
Herbaceous
Shiny/Glossy
Succulent

Foliage Color

Height
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)

Spacing
18-24 in. (45-60 cm)

Hardiness
Not Applicable

Where to Grow

Danger

Bloom Color
Inconspicuous/none

Bloom Characteristics

Bloom Size

Bloom Time
Late Summer/Early Fall

Other details
May be a noxious weed or invasive

Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information
Non-patented

Propagation Methods
By dividing the rootball
From herbaceous stem cuttings
From woody stem cuttings
From semi-hardwood cuttings
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
Direct sow as soon as the ground can be worked
From seed; sow indoors before last frost
From seed; direct sow after last frost
From seed; germinate in a damp paper towel
From seed; germinate in vitro in gelatin, agar or other medium

Seed Collecting
Bag seedheads to capture ripening seed
Collect seedhead/pod when flowers fade; allow to dry
Allow seedheads to dry on plants; remove and collect seeds