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 241 to 300 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.

Clematis 'Rouge Cardinal'

Full sunZones 4–88 ftModerate

Listed as toxic to dogs and cats

Rubber Rabbitbrush

Ericameria nauseosa

Full sunZones 4–95 ftLow

Hemerocallis 'Ruby Stella'

Full sunZones 3–91.5 ftModerate

Listed as toxic to dogs and cats

Full sunZones 4–94 ftLow

Salvia nemorosa 'Sensation Rose'

Full sunZones 4–81 ftLow

Panicum virgatum 'Shenandoah'

Full sunZones 4–94 ftLow

Colchicum speciosum

Full sunZones 4–98 inModerate

Listed as toxic to dogs and cats

Full sunZones 4–94 ftModerate

Six Hills Giant

Nepeta 'Six Hills Giant'

Full sunZones 3–82.5 ftLow

Smooth Blue Aster

Symphyotrichum laeve

Full sunZones 4–83 ftModerate

Smooth Hydrangea

Hydrangea arborescens

Part shadeZones 3–94 ftModerate

Listed as toxic to dogs and cats

Full sunZones 3–83.5 ftModerate

Symphyotrichum ericoides 'Snow Flurry'

Full sunZones 3–88 inLow

Monarda 'Schneewittchen'

Full sunZones 3–93 ftModerate

Sombrero Adobe Orange

Echinacea 'Sombrero Adobe Orange'

Full sunZones 4–92 ftLow

Sombrero Hot Coral

Echinacea 'Sombrero Hot Coral'

Full sunZones 4–92 ftLow

Sombrero Lemon Yellow

Echinacea 'Sombrero Lemon Yellow'

Full sunZones 4–92 ftLow

Sombrero Salsa Red

Echinacea 'Sombrero Salsa Red'

Full sunZones 4–92 ftLow

Sonic Bloom Pink

Weigela 'Sonic Bloom Pink'

Full sunZones 4–85 ftModerate

Sonic Bloom Red

Weigela 'Sonic Bloom Red'

Full sunZones 4–85 ftModerate

Spotted Joe Pye Weed

Eutrochium maculatum

Full sunZones 4–85.5 ftModerate

Stanwell Perpetual

Rosa 'Stanwell Perpetual'

Full sunZones 4–104 ftModerate

Phlox paniculata 'Starfire'

Full sunZones 4–83 ftModerate

Hemerocallis 'Stella de Oro'

Full sunZones 3–912 inModerate

Listed as toxic to dogs and cats

Stiff Goldenrod

Solidago rigida

Full sunZones 3–93.5 ftModerate

Strawberry Hill

Rosa 'Ausrimini'

Full sunZones 4–1010 ftModerate

Strawberry Sundae Hydrangea

Hydrangea paniculata 'Rensun'

Full sunZones 3–84.5 ftModerate

Listed as toxic to dogs and cats

Hibiscus 'Summer Storm'

Full sunZones 4–94 ftHigh

Sunny Border Blue

Veronica 'Sunny Border Blue'

Full sunZones 3–81.5 ftModerate

SunSparkler Firecracker

Hylotelephium 'Firecracker'

Full sunZones 4–98 inLow

Susan Williams-Ellis

Rosa 'Ausquirk'

Full sunZones 4–93.5 ftModerate

Sweet Autumn Clematis

Clematis terniflora

Full sunZones 4–913 ftModerate

Listed as toxic to dogs and cats

Sweet Joe Pye Weed

Eutrochium purpureum

Full sunZones 4–96 ftModerate

Panicum virgatum

Full sunZones 4–95 ftLow

Potentilla fruticosa 'Tangerine'

Full sunZones 2–72.5 ftLow

The Alnwick Rose

Full sunZones 4–114 ftModerate

Rosa 'The Fairy'

Full sunZones 4–92.5 ftModerate

The Generous Gardener

Rosa 'Ausdrawn'

Full sunZones 4–1011 ftModerate

Colchicum 'The Giant'

Full sunZones 4–911 inModerate

Listed as toxic to dogs and cats

Clematis 'The President'

Full sunZones 4–910 ftModerate

Listed as toxic to dogs and cats

Hylotelephium 'Thunderhead'

Full sunZones 3–92 ftLow

Part shadeZones 4–82.5 ftModerate

Echinacea 'Tomato Soup'

Full sunZones 4–92.5 ftLow

Tranquilite Clematis

Clematis 'Evipo111'

Part shadeZones 4–94.5 ftModerate

Listed as toxic to dogs and cats

Campsis radicans

Full sunZones 4–926 ftModerate

Phlomis russeliana

Full sunZones 4–93 ftLow

Part sunZones 3–83 ftHigh

Schizachyrium scoparium 'Twilight Zone'

Full sunZones 3–93.5 ftLow

Vanilla Strawberry Hydrangea

Hydrangea paniculata 'Renhy'

Full sunZones 4–87 ftModerate

Listed as toxic to dogs and cats

Clematis 'Evipo114'

Part shadeZones 4–93.5 ftModerate

Listed as toxic to dogs and cats

Clematis 'Ville de Lyon'

Full sunZones 4–910 ftModerate

Listed as toxic to dogs and cats

Salvia nemorosa 'Violet Riot'

Full sunZones 4–82 ftLow

Nepeta 'Walker's Low'

Full sunZones 3–82 ftLow

Colchicum 'Waterlily'

Full sunZones 4–98 inModerate

Listed as toxic to dogs and cats

White Annual Phlox

Phlox drummondii

Full sunZones 2–1112 inModerate

Phlox paniculata 'White Flame'

Full sunZones 4–81.5 ftModerate

Echinacea purpurea 'White Swan'

Full sunZones 3–92.5 ftLow

White Turtlehead

Part shadeZones 3–83 ftHigh

White Wood Aster

Eurybia divaricata

Part shadeZones 3–82 ftModerate

Whorled Milkweed

Asclepias verticillata

Full sunZones 4–91.5 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

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