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Mock bishopsweed, Herbwilliam
Ptilimnium capillaceum
Apiaceae


General Landscape Uses:

Primarily recommended for natural landscapes and habitat restorations. Also wet wildflower and butterfly gardens.
Availability:
Grown by enthusiasts.
Description:
Small to medium annual herb.
Dimensions:
About 6-18 inches in height. Usually taller than broad.
Growth Rate:
Fast.
Range:
Eastern and central United States west to Texas and south to Miami-Dade and Collier counties; West Indies.
Habitats:
Swamps and wet disturbed sites.
Soils:
Wet to moist, well-drained to poorly-drained sandy or organic soils, with humusy top layer.
Nutritional Requirements:
Moderate; can grow in nutrient poor soils, but needs some organic content to thrive.
Salt Water Tolerance:
Low; does not tolerate flooding by salt or brackish water.
Salt Wind Tolerance:
Low; salt wind may burn the leaves.
Drought Tolerance:
Low; requires moist to wet soils and is intolerant of long periods of drought.
Light Requirements:
Full sun.
Flower Color:
White.
Flower Characteristics:
Semi-showy.
Flowering Season:
All year.
Fruit:
A pair of inconspicuous carpels pendent from a supporting axis.
Wildlife and Ecology:
Larval host plant for black swallowtail (Papilio polyxenes) butterflies.
Comments:
Somewhat weedy.


 


Roger L. Hammer
Shirley Denton
Shirley Denton
Shirley Denton
Shirley Denton
Keith A. Bradley
Keith A. Bradley
Keith A. Bradley