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)
Synonym
Sun Exposure
Sun to Partial Shade
Foliage
Herbaceous
Shiny/Glossy
Succulent
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
Bloom Color
Inconspicuous/none
Bloom Time
Late Summer/Early Fall
Other Details
Category
Annuals
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
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
Regional

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

Alachua, Florida

Bartow, Florida

Gainesville, Florida

Lake Worth, Florida

Lakeland, Florida

Lecanto, Florida

Loxahatchee, Florida

Melbourne, Florida

Melrose, Florida

Miami, Florida(2 reports)

Pensacola, Florida

Pompano Beach, Florida

Punta Gorda, Florida

Saint Petersburg, Florida

Spring Hill, Florida

Tampa, Florida

Brunswick, Georgia

Jekyll Island, Georgia

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Gardener's Notes:

2
positives
2
neutrals
2
negatives
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J
Toronto, ON (Zone 6a) | September 2015 | neutral

The true Bidens pilosa does not have white flower petals at all. The ones with small or big white flower petals are either hybrid with ...Read More

S
Spring Hill, FL | October 2013 | negative

Spanish Needle nothing but a weed in my yard. Hate to have to pull it all the time. Gets on my clothes and in dog's hair. Pretty little b...Read More

L
Loxahatchee, FL | August 2008 | positive

Under control,is great add for dishes.You can use like any green.Good source of Iron.Even is a part of a big research again the Leukemia.

C
Alachua, FL (Zone 8b) | May 2007 | positive

This one grows all over the place in my neighborhood and when the little sticky seeds get into your socks it can be a pain. But the boi...Read More

F
Josephine, Arlington, TX (Zone 8a) | January 2007 | neutral

Spanish Needle, Hairy Beggar-ticks, Picão Preto Bidens pilosa is Native to Texas and other States.

M
Bartow, FL (Zone 9a) | January 2006 | negative

Extremely invasive, but it does have a few advantages along roadsides, but not in my yard.

It provides nectar for butterfl...Read More

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