The opposite leaves of this tall prairie plant form a cup that holds water.
Pronunciation
(SIL-phee-um)
Plant Type
All Plants, Wild Flowers
Hardiness Zone
cold hardy to at least #5
Sunlight
full
Moisture
prefers moist
Soil & Site
prefers moist and can be found along streams and moist areas, native to mesic soils
Flowers
yellow daisy-like flowers are found on tall single scapes (flower stalks)
Fruit
achene
Leaves
opposite leaves, coarsely toothed, form a water reservoir where they join at the stem, two leaves join together around the stem (perfoliate) visited by birds and Hummingbirds.
Stems
square stem
Dimensions
up to 8 feet, can form thick patches
Propagation
moist stratified seed
Native Site
North American Prairies
Misc Facts
Prairie Nursery ranks this plant high for wildlife food.
Notes & Reference
#09-The Prairie Garden (J. Robert Smith with Beatrice Smith), #56-Tall Grass Prairie Wildflowers (Doug Ladd), #224-Prairie Nursery web site (www.prairienursery.com)