Swamp Milkweed
Asclepias incarnata
Pollen-rich and bee-friendly — feeds native bees and butterflies, rose pink flowers and flowering in Jul and Aug.
- Full–part sun
- Average–wet
- 3–4 ft
- Blooms Jul–Aug
The native flowers that feed honey bees, bumblebees, and the hundreds of solitary native bees most gardeners never notice. Montana sits in a landscape of Northern Rockies & Great Plains steppe, and the natives that thrive here are the ones built for its cold, semi-arid character. The list below — led by Swamp Milkweed and Wild Bergamot — is filtered to species genuinely native to Montana and the wider flora of the Mountain West and hardy through zones 3–5. Most of our native bees are solitary and unfussy, but they depend on a steady supply of pollen-rich, single (not double) flowers. Open daisy and umbel shapes are easiest for short-tongued bees, while tubular flowers reward the long-tongued bumblebees. Skip pesticides entirely and leave some bare, undisturbed ground and pithy stems where ground- and stem-nesting bees raise their young.
Each one native to your region and hardy in zones 3–5 · see this collection in other states.
Asclepias incarnata
Pollen-rich and bee-friendly — feeds native bees and butterflies, rose pink flowers and flowering in Jul and Aug.
Monarda fistulosa
One the bees find first — feeds the specialist bees that depend on it, along with hummingbirds and butterflies; good through zone 9, it blooms Jun through Aug.
Amelanchier canadensis
A bee plant first and foremost — feeds native bees and butterflies, reaching 15–25 ft and flowering in Apr and May.
Solidago speciosa
Pollen-rich and bee-friendly — feeds the specialist bees that depend on it, along with butterflies and native bees — spreading 1.5–2 ft, blooming in Sep and Oct.
Agastache foeniculum
Pollen-rich and bee-friendly — feeds native bees, hummingbirds, and butterflies, happy in sand, rocky, and loam soil and flowering from Jun to Sep.
Zizia aurea
One the bees find first — feeds the specialist bees that depend on it, along with butterflies and native bees; reaching 1.5–2.5 ft, it blooms Apr through Jun.
Penstemon strictus
Pollen-rich and bee-friendly — feeds the specialist bees that depend on it, along with hummingbirds and native bees; deep blue-purple flowers, it blooms May through Jul.
Penstemon digitalis
Bee fuel — pollen-rich, single flowers — feeds the specialist bees that depend on it, along with hummingbirds and native bees, for clay, rocky, and loam ground and flowering in May and Jun.
Fallugia paradoxa
Bee fuel — pollen-rich, single flowers — feeds native bees; spreading 3–6 ft, it blooms Apr through Sep.
Geum triflorum
Bee fuel — pollen-rich, single flowers — feeds the specialist bees that depend on it, 6–16 in tall and flowering in Apr and May.
Eutrochium maculatum
Bee fuel — pollen-rich, single flowers — feeds the specialist bees that depend on it, along with butterflies and native bees, 2–4 ft wide and flowering from Jul to Sep.
Veronicastrum virginicum
Pollen-rich and bee-friendly — feeds the specialist bees that depend on it, along with butterflies and native bees, 1.5–2 ft wide and flowering from Jun to Aug.
Rudbeckia hirta
One the bees find first — feeds native bees and butterflies, hardy in zones 3–9 and flowering from Jun to Sep.
Gaillardia aristata
Bee fuel — pollen-rich, single flowers — feeds native bees and butterflies — good through zone 10, blooming from Jun to Sep.
Liatris pycnostachya
Pollen-rich and bee-friendly — feeds the specialist bees that depend on it, along with butterflies and native bees, for clay, rocky, and loam ground and flowering in Jul and Aug.
Ribes sanguineum
Bee fuel — pollen-rich, single flowers — feeds native bees and hummingbirds, 4–8 ft wide and flowering in Mar and Apr.
Lobelia siphilitica
A bee plant first and foremost — feeds native bees, hummingbirds, and butterflies — deep blue flowers, blooming in Aug and Sep.
Aquilegia canadensis
Pollen-rich and bee-friendly — feeds the specialist bees that depend on it, along with hummingbirds and native bees; hardy in zones 3–8, it blooms Apr through Jun.
Echinacea purpurea
One the bees find first — feeds native bees and butterflies; rosy purple flowers, it blooms Jun through Sep.
Pulsatilla patens
A bee plant first and foremost — feeds the specialist bees that depend on it, good through zone 7 and flowering in Mar and Apr.
Cephalanthus occidentalis
One the bees find first — feeds native bees, hummingbirds, and butterflies — hardy in zones 5–9, blooming from Jun to Aug.
Aquilegia formosa
Pollen-rich and bee-friendly — feeds native bees and hummingbirds — 12–18 in wide, blooming from Apr to Jul.
Silphium perfoliatum
Bee fuel — pollen-rich, single flowers — feeds native bees and butterflies — 2–4 ft wide, blooming from Jul to Sep.
Penstemon eatonii
One the bees find first — feeds native bees and hummingbirds; 12–18 in wide, it blooms Mar through May.
26 more also qualify: Douglas Aster, Common Yarrow, Butterfly Weed, Lanceleaf Coreopsis, Dense Blazing Star, Chocolate Flower, Eastern Redbud, Aromatic Aster, New England Aster, Obedient Plant, Maximilian Sunflower, Stiff Goldenrod, Common Boneset, Ninebark, Red-Twig Dogwood, Oregon Grape, Showy Milkweed, American Elderberry, Purple Prairie Clover, Rattlesnake Master, Common Milkweed, Blue Vervain, Compass Plant, Bearberry, Fragrant Sumac, New Jersey Tea.
Seed packets, plugs, and starter plants for many of these species ship to your door.
Browse on AmazonSome links here are affiliate links — we may earn a small commission at no extra cost to you. The surest source of locally-adapted stock is a native-plant nursery or a native plant society sale in your area.