Bloom calendar

Plants for Zone 4 That Bloom in September

307 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 121 to 180 of 307 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 307 plants, 266 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.

Fireworks Goldenrod

Solidago rugosa 'Fireworks'

Full sunZones 4–83.5 ftModerate

Veronica spicata 'First Love'

Full sunZones 3–81.5 ftModerate

Miscanthus sinensis var. purpurascens

Full sunZones 4–94.5 ftLow

Flava (Yellow Trumpet)

Campsis radicans f. flava

Full sunZones 4–926 ftModerate

Hylotelephium 'Frosty Morn'

Full sunZones 3–91.5 ftLow

Phlox paniculata

Full sunZones 4–83.5 ftModerate

Giant Sunflower

Helianthus annuus 'Mammoth Russian'

Full sunZones 2–118 ftModerate

Clematis 'Gipsy Queen'

Full sunZones 4–911 ftModerate

Listed as toxic to dogs and cats

Gaillardia × grandiflora 'Goblin'

Full sunZones 3–912 inLow

Full sunZones 3–93 ftLow

Potentilla fruticosa 'Goldfinger'

Full sunZones 2–73 ftLow

Rudbeckia fulgida 'Goldsturm'

Full sunZones 3–92.5 ftLow

Great Blue Lobelia

Lobelia siphilitica

Part shadeZones 4–92.5 ftHigh

Listed as toxic to dogs and cats

Sanguisorba officinalis

Full sunZones 4–83 ftModerate

Echinacea purpurea 'Green Jewel'

Full sunZones 4–92 ftLow

Clematis 'Hagley Hybrid'

Part shadeZones 4–98 ftModerate

Listed as toxic to dogs and cats

Happy Face Yellow

Potentilla fruticosa 'Happy Face Yellow'

Full sunZones 2–73 ftLow

Hemerocallis 'Happy Returns'

Full sunZones 3–91.5 ftModerate

Listed as toxic to dogs and cats

Panicum virgatum 'Heavy Metal'

Full sunZones 4–95 ftLow

Clematis 'Henryi'

Full sunZones 4–910 ftModerate

Listed as toxic to dogs and cats

Hollow Joe Pye Weed

Eutrochium fistulosum

Full sunZones 4–86 ftModerate

Hollyhock 'Blacknight'

Alcea rosea 'Blacknight'

Full sunZones 2–115 ftModerate

Hollyhock 'Chater's Double'

Alcea rosea 'Chater's Double'

Full sunZones 3–96 ftModerate

Hollyhock 'Peach'

Alcea rosea 'Peach'

Full sunZones 2–115 ftModerate

Hibiscus 'Holy Grail'

Full sunZones 4–94 ftHigh

Echinacea 'Hot Papaya'

Full sunZones 4–92.5 ftLow

Rudbeckia hirta 'Indian Summer'

Full sunZones 3–73 ftLow

Sorghastrum nutans

Full sunZones 4–96 ftModerate

Invincibelle Spirit II Hydrangea

Hydrangea arborescens 'NCHA2'

Part sunZones 3–83.5 ftModerate

Listed as toxic to dogs and cats

Full sunZones 4–95 ftModerate

Clematis 'Jackmanii'

Full sunZones 4–911 ftModerate

Listed as toxic to dogs and cats

Monarda didyma 'Jacob Cline'

Full sunZones 3–94 ftModerate

Japanese Anemone

Anemone hupehensis

Part shadeZones 4–83 ftModerate

Phlox paniculata 'Jeana'

Full sunZones 4–84 ftModerate

Full sunZones 4–96 ftHigh

Kickin' Carmine Red

Symphyotrichum 'Kickin Carmine Red'

Full sunZones 4–81.5 ftModerate

Dicentra 'King of Hearts'

Part shadeZones 3–910 inModerate

Listed as toxic to dogs and cats

Kismet Raspberry

Echinacea 'Kismet Raspberry'

Full sunZones 4–91.5 ftLow

Rosa 'Knock Out'

Full sunZones 4–103.5 ftModerate

Phlox paniculata 'Laura'

Full sunZones 4–83 ftModerate

Lavender Annual Phlox

Phlox drummondii

Full sunZones 2–1112 inModerate

Colchicum 'Lilac Wonder'

Full sunZones 4–88 inModerate

Listed as toxic to dogs and cats

Limelight Hydrangea

Hydrangea paniculata 'Limelight'

Full sunZones 3–87 ftModerate

Listed as toxic to dogs and cats

Little Bluestem

Schizachyrium scoparium

Full sunZones 3–93.5 ftLow

Little Lime Hydrangea

Hydrangea paniculata 'Jane'

Full sunZones 3–84 ftModerate

Listed as toxic to dogs and cats

Echinacea purpurea 'Magnus'

Full sunZones 3–93 ftLow

Potentilla fruticosa 'Mango Tango'

Full sunZones 2–72 ftLow

Marie Boisselot

Clematis 'Marie Boisselot'

Full sunZones 4–910 ftModerate

Listed as toxic to dogs and cats

Echinacea 'Marmalade'

Full sunZones 4–92.5 ftLow

Marshall's Delight

Monarda 'Marshall's Delight'

Full sunZones 3–93 ftModerate

Chrysanthemum 'Mary Stoker'

Full sunZones 3–92.5 ftModerate

Listed as toxic to dogs and cats

Hylotelephium 'Matrona'

Full sunZones 3–92 ftLow

Salvia nemorosa 'Mainacht'

Full sunZones 4–82 ftLow

Potentilla fruticosa 'McKay's White'

Full sunZones 2–72.5 ftLow

Gaillardia × grandiflora 'Mesa Yellow'

Full sunZones 3–91.5 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

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

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