Abelia
Abelia 'Edward Goucher'
- USDA zones
- 6–9
- Light
- Full sun to part shade
- Water
- Medium
Bloom time
What blooms in September?
Cooler nights and shorter days start a second bloom season. Asters, sedums, and dahlias take over from the fading summer flowers.
1317 plants in the Rita's Garden Path library are recorded as blooming in September.
September bloomers at a glance
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Abelia
Abelia 'Rose Creek'
- USDA zones
- 6–9
- Light
- Full sun to part shade
- Water
- Medium
African marigold
Tagetes erecta
- USDA zones
- 2–11
- Light
- Full sun
- Water
- Medium
Allegheny monkey flower
Mimulus ringens
- USDA zones
- 3–8
- Light
- Full sun to part shade
- Water
- Medium to wet
American blue vervain
Verbena hastata
- USDA zones
- 3–8
- Light
- Full sun
- Water
- Medium to wet
American boneset
Eupatorium perfoliatum
- USDA zones
- 3–8
- Light
- Full sun to part shade
- Water
- Medium to wet
American feverfew
Parthenium hispidum
- USDA zones
- 5–8
- Light
- Full sun to part shade
- Water
- Dry to medium
American germander
Teucrium canadense
- USDA zones
- 4–9
- Light
- Full sun to part shade
- Water
- Medium
American mountain mint
Pycnanthemum virginianum
- USDA zones
- 3–7
- Light
- Full sun
- Water
- Medium
American mountain mint
Pycnanthemum pilosum
- USDA zones
- 4–8
- Light
- Full sun to part shade
- Water
- Dry to medium
Amur silvergrass
Miscanthus sacchariflorus
- USDA zones
- 4–9
- Light
- Full sun to part shade
- Water
- Medium to wet
Angelonia
Angelonia angustifolia
- USDA zones
- 9–11
- Light
- Full sun
- Water
- Medium
Anise hyssop
Agastache foeniculum
- USDA zones
- 4–8
- Light
- Full sun to part shade
- Water
- Dry to medium
Anise-scented sage
Salvia guaranitica 'Black and Blue'
- USDA zones
- 8–10
- Light
- Full sun to part shade
- Water
- Medium
Appalachian black-eyed Susan
Rudbeckia fulgida var. Umbrosa
- USDA zones
- 3–9
- Light
- Full sun
- Water
- Dry to medium
Aromatic aster
Symphyotrichum oblongifolium
- USDA zones
- 3–8
- Light
- Full sun
- Water
- Dry to medium
Arrowhead
Sagittaria australis 'Benni' SILK STOCKINGS
- USDA zones
- 5–10
- Light
- Full sun to part shade
- Water
- Wet
Ashy sunflower
Helianthus mollis
- USDA zones
- 4–9
- Light
- Full sun
- Water
- Dry to medium
Asian mint
Persicaria odorata
- USDA zones
- 9–11
- Light
- Full sun to part shade
- Water
- Medium to wet
Aster
Aster × frikartii 'Monch'
- USDA zones
- 5–10
- Light
- Full sun to part shade
- Water
- Medium
Aster
Aster × frikartii 'Wunder von Stafa'
- USDA zones
- 5–8
- Light
- Full sun to part shade
- Water
- Medium
Aster
Aster 'Little Carlow'
- USDA zones
- 4–8
- Light
- Full sun
- Water
- Medium
Aster
Aster sedifolius 'Nanus'
- USDA zones
- 4–7
- Light
- Full sun
- Water
- Medium
Aster
Aster 'Wood's Purple'
- USDA zones
- 4–8
- Light
- Full sun
- Water
- Medium
Aster
Kalimeris mongolica
- USDA zones
- 6–8
- Light
- Full sun to part shade
- Water
- Medium
Aster
Symphyotrichum anomalum
- USDA zones
- 5–7
- Light
- Full sun
- Water
- Dry to medium
Astilbe
Astilbe × arendsii 'Cattleya'
- USDA zones
- 4–8
- Light
- Part shade to full shade
- Water
- Medium
Autumn crocus
Colchicum 'Violet Queen'
- USDA zones
- 4–8
- Light
- Full sun to part shade
- Water
- Dry
Autumn crocus
Colchicum 'Waterlily'
- USDA zones
- 4–7
- Light
- Full sun to part shade
- Water
- Medium
Autumn crocus
Colchicum byzantinum
- USDA zones
- 4–8
- Light
- Full sun to part shade
- Water
- Medium
Autumn crocus
Colchicum cilicicum
- USDA zones
- 4–8
- Light
- Full sun to part shade
- Water
- Medium
Autumn crocus
Colchicum tenorei
- USDA zones
- 4–7
- Light
- Full sun to part shade
- Water
- Medium
Autumn crocus
Colchicum byzantinum 'Album'
- USDA zones
- 4–8
- Light
- Full sun to part shade
- Water
- Medium
Autumn crocus
Colchicum 'Disraeli'
- USDA zones
- 4–7
- Light
- Full sun to part shade
- Water
- Medium
Autumn crocus
Colchicum autumnale 'Pleniflorum'
- USDA zones
- 4–8
- Light
- Full sun to part shade
- Water
- Medium
Autumn crocus
Colchicum (group)
- USDA zones
- 4–7
- Light
- Full sun to part shade
- Water
- Medium
Autumn crocus
Colchicum autumnale
- USDA zones
- 4–8
- Light
- Full sun to part shade
- Water
- Medium
Autumn crocus
Colchicum laetum
- USDA zones
- 4–7
- Light
- Full sun to part shade
- Water
- Medium
Autumn daffodil
Sternbergia lutea
- USDA zones
- 6–9
- Light
- Full sun
- Water
- Dry to medium
Autumn moor grass
Sesleria autumnalis
- USDA zones
- 5–8
- Light
- Full sun to part shade
- Water
- Dry to medium
Avens
Geum 'Totally Tangerine'
- USDA zones
- 5–7
- Light
- Full sun to part shade
- Water
- Medium
Axilflower
Mecardonia 'USMECA67' GOLDFLAKE
- USDA zones
- 9–11
- Light
- Full sun
- Water
- Medium
Axilflower
Mecardonia 'Gold Dust'
- USDA zones
- 10–11
- Light
- Full sun
- Water
- Medium
Azure monkshood
Aconitum carmichaelii 'Arendsii'
- USDA zones
- 3–7
- Light
- Full sun to part shade
- Water
- Medium
Azure monkshood
Aconitum carmichaelii var. Angustius
- USDA zones
- 3–7
- Light
- Full sun to part shade
- Water
- Medium
Bachelor's button
Centratherum punctatum 'Button Beauty'
- USDA zones
- 10–12
- Light
- Full sun
- Water
- Medium
Banana
Musella lasiocarpa
- USDA zones
- 7–10
- Light
- Full sun to part shade
- Water
- Medium
Barberry
Berberis 'Soft Caress'
- USDA zones
- 7–10
- Light
- Part shade
- Water
- Dry to medium
Showing 48 of 1317 plants. Filter the full library to see every September bloomer, or browse the complete bloom-time guide.