Bloom calendar

Plants for Zone 4 That Bloom in September

331 plants in the BloomsEye library that are hardy in USDA hardiness zone 4 and typically flower in September, such as Switchgrass, Toad Lily and Aster. Each entry lists its bloom times, hardiness zones, and sun needs.

Showing 181 to 240 of 331 plants

How this list is made

Derived from each plant's bloom months and USDA hardiness zones, as stored in the BloomsEye library, which was written with AI assistance. Of these 331 plants, 300 have been checked against outside sources (16 fully verified); the rest have not been checked yet, and each plant's own page says which. The cards are AI-generated illustrations. Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.

Chrysanthemum 'Mary Stoker'

Full sunZones 3–92.5 ftModerate

Listed as toxic to dogs and cats

Hylotelephium 'Matrona'

Full sunZones 3–92 ftLow

Maximilian Sunflower

Helianthus maximiliani

Full sunZones 4–96 ftModerate

Potentilla fruticosa 'McKay's White'

Full sunZones 2–72.5 ftLow

Meadow Blazing Star

Liatris ligulistylis

Full sunZones 3–82 ftLow

Gaillardia × grandiflora 'Mesa Yellow'

Full sunZones 3–101.5 ftLow

Ratibida columnifera

Full sunZones 4–92.5 ftLow

Part sunZones 3–74 ftModerate

Listed as toxic to dogs and cats

Coreopsis verticillata 'Moonbeam'

Full sunZones 3–91.5 ftLow

Mountain Fleece

Bistorta amplexicaulis

Full sunZones 4–73.5 ftModerate

Hylotelephium 'Mr. Goodbud'

Full sunZones 3–91.5 ftLow

Narrowleaf Mountain Mint

Pycnanthemum tenuifolium

Full sunZones 4–82.5 ftModerate

Clematis 'Nelly Moser'

Part shadeZones 4–910 ftModerate

Listed as toxic to dogs and cats

Hylotelephium spectabile 'Neon'

Full sunZones 3–91.5 ftLow

New England Aster

Symphyotrichum novae-angliae

Full sunZones 3–84 ftModerate

New England Aster 'Barr's Pink'

Symphyotrichum novae-angliae 'Barr's Pink'

Full sunZones 3–83.5 ftModerate

New England Aster 'Harrington's Pink'

Symphyotrichum novae-angliae 'Harrington's Pink'

Full sunZones 3–84 ftModerate

New England Blazing Star

Liatris scariosa var. novae-angliae

Full sunZones 3–82.5 ftLow

Symphyotrichum novi-belgii

Full sunZones 4–83.5 ftModerate

Phlox paniculata 'Nicky'

Full sunZones 4–83.5 ftModerate

Clematis 'Niobe'

Full sunZones 4–98 ftModerate

Listed as toxic to dogs and cats

Northern Sea Oats

Chasmanthium latifolium

Part shadeZones 3–83.5 ftModerate

Panicum virgatum 'Northwind'

Full sunZones 4–96 ftLow

Full sunZones 3–93.5 ftModerate

Obovate Beakgrain

Diarrhena obovata

Part shadeZones 4–82.5 ftModerate

Symphyotrichum oblongifolium 'October Skies'

Full sunZones 3–81.5 ftLow

Orange Coneflower

Echinacea 'Harvest Moon'

Full sunZones 3–82.5 ftModerate

Orange Perfection

Phlox paniculata 'Orange Perfection'

Full sunZones 4–83 ftModerate

Potentilla fruticosa 'Orange Whisper'

Full sunZones 2–72.5 ftLow

Oranges and Lemons

Gaillardia × grandiflora 'Oranges and Lemons'

Full sunZones 3–91.5 ftLow

Panicle Hydrangea

Hydrangea paniculata

Full sunZones 3–86.5 ftModerate

Listed as toxic to dogs and cats

Hemerocallis 'Pardon Me'

Full sunZones 3–91.5 ftModerate

Listed as toxic to dogs and cats

Pardon My Cerise

Monarda didyma 'Pardon My Cerise'

Full sunZones 3–912 inModerate

Pardon My Purple

Monarda didyma 'Pardon My Purple'

Full sunZones 3–912 inModerate

Full sunZones 2–91.5 ftModerate

Patricia Ballard

Symphyotrichum novi-belgii 'Patricia Ballard'

Full sunZones 4–83 ftModerate

Peach Annual Phlox

Phlox drummondii

Full sunZones 2–1112 inModerate

PeeGee Hydrangea

Hydrangea paniculata 'Grandiflora'

Full sunZones 3–811 ftModerate

Listed as toxic to dogs and cats

Perennial Black-Eyed Susan

Rudbeckia fulgida

Full sunZones 3–92.5 ftModerate

Perennial Sunflower

Full sunZones 4–95 ftModerate

Phantom Hydrangea

Hydrangea paniculata 'Phantom'

Full sunZones 3–86.5 ftModerate

Listed as toxic to dogs and cats

Pincushion Flower

Full sunZones 3–71.5 ftModerate

Potentilla fruticosa 'Pink Beauty'

Full sunZones 2–72.5 ftLow

Nepeta 'Pink Cat'

Full sunZones 3–81.5 ftLow

Pink Double Delight

Echinacea 'Pink Double Delight'

Full sunZones 4–91.5 ftLow

Salvia nemorosa 'Pink Profusion'

Full sunZones 4–81.5 ftLow

Pink Turtlehead

Part shadeZones 3–83 ftHigh

Potentilla fruticosa 'Pink Whisper'

Full sunZones 2–72.5 ftLow

Pinky Winky Hydrangea

Hydrangea paniculata 'DVP Pinky'

Full sunZones 3–97 ftModerate

Listed as toxic to dogs and cats

Potentilla fruticosa

Full sunZones 2–73 ftLow

PowWow Wild Berry

Echinacea 'PowWow Wild Berry'

Full sunZones 3–82 ftLow

Silphium terebinthinaceum

Full sunZones 4–89 ftModerate

Prairie Dropseed Grass

Sporobolus heterolepis

Full sunZones 3–92.5 ftLow

Prairie Ironweed

Vernonia fasciculata

Full sunZones 4–94 ftModerate

Allium stellatum

Full sunZones 3–81.5 ftLow

Listed as toxic to dogs and cats

Rudbeckia hirta 'Prairie Sun'

Full sunZones 3–82.5 ftModerate

Professor Kippenberg

Symphyotrichum novi-belgii 'Professor Anton Kippenberg'

Full sunZones 4–81.5 ftModerate

Purple Annual Phlox

Phlox drummondii

Full sunZones 2–1112 inModerate

Purple Coneflower

Echinacea purpurea

Full sunZones 3–83 ftLow

Hemerocallis 'Purple de Oro'

Full sunZones 3–91.5 ftModerate

Listed as toxic to dogs and cats

Keep exploring

All zone 4 plants All plants blooming in September Zone 4 in August Zone 4 in October Zone 3 in September Zone 5 in September Bloom Calendar

Design your garden

Drop plants onto a 3D plan, see how they fill in, and watch the whole garden bloom across the year.

Open BloomsEye Studio →