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Additional Sponsors:

Broward Chapter of the
Florida Native Plant Society

Green Isle Gardens

Indian Trails Native Nursery

Meadow Beauty Nursery

Plant Creations, Inc.

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Smarty Plants Nursery

Sustainscape

Sweet Bay Nursery, LLC

Veber's Jungle Garden, Inc.



Whorled milkweed
Asclepias verticillata
Apocynaceae


General Landscape Uses:

Primarily recommended for natural landscapes and habitat restorations. Also wildflower and butterfly gardens.

Ecological Restoration Notes:

A rare understory herb in pinelands.
Availability:
Grown by enthusiasts and occasionally by native plant nurseries. Available at Indian Trails Native Nursery in Lake Worth (561-641-9488).
Description:
Medium wildflower with erect slender stems; barely noticeable when not in flower.
Dimensions:
Typically 2-3 feet in height. Taller than broad.
Growth Rate:
Moderate.
Range:
Widespread in North America south to Miami-Dade and Collier counties.
Habitats:
Pinelands.
Soils:
Moist, well-drained sandy soils, without humus.
Nutritional Requirements:
Low; it grows in nutrient poor soils.
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:
High; does not require any supplemental water once established.
Light Requirements:
Full sun.
Flower Color:
Greenish-white or white.
Flower Characteristics:
Semi-showy.
Flowering Season:
Spring-summer.
Fruit:
Slender pod (follicle) with wind dispersed seeds.
Wildlife and Ecology:
Larval host for queen (Danaus gilippus) and possibly soldier (Danaus eresimus) butterflies. Nectar plant for monarch (Danaus plexippus) and other butterflies.
Horticultural Notes:
Can be grown from seed.


 


Keith A. Bradley
Keith A. Bradley