Maximilian Sunflower
Helianthus maximiliani
Found in moist roadsides and disturbed areas. Weakley, Flora of the Southeastern United States (2025), South Central edition What its natural habitat tells you
Not native to Alabama. How scores work Is it native here?
Profile 71%
- Height
- 2–10 feet
- Spread
- 2–4 feet
- Light
- Full sun
- Soil moisture
- Somewhat dry to moist

At a glance
- Life cycle
- Perennial
- Leaves
- Deciduous
- Bloom
- August to October
Recorded in 3 Alabama counties.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.
Roadsides, fields and disturbed ground
Ground opened by people: roadsides, old fields, pastures, fencerows and lots.
Who uses this plant?
68CaterpillarsGenus host records with ranges including AL
Genus host records with ranges including AL · Helianthus
- Chlosyne nycteisSilvery Checkerspot
- Acharia stimuleaSaddleback Caterpillar Moth
- Achyra rantalisGarden Webworm Moth
- Adaina ambrosiaeAmbrosia Plume Moth, Ragweed Plume Moth
- Agrotis ipsilonIpsilon Dart, Black Cutworm, Greasy Cutworm
- Amyna strictaEight-Spot Moth
- Autographa precationisCommon Looper Moth
- Chloridea virescensTobacco Budworm Moth
- Chlorochlamys chloroleucariaBlackberry Looper Moth
- Choristoneura rosaceanaOblique-Banded Leafroller Moth, Rosaceous Leaf Roller
Show all 68
- Chrysodeixis includensSoybean Looper Moth
- Cochylichroa hospesBanded Sunflower Moth
- Condica sutorThe Cobbler, Cobbler Groundling
- Dichomeris flavocostellaCream-Edged Dichomeris
- Dichomeris inserrataIndented Dichomeris
- Dichomeris juncidellaOrange-Dotted Dichomeris
- Elophila obliteralisWaterlily Leafcutter Moth
- Estigmene acreaSalt Marsh Moth, Acrea Moth
- Eupithecia miserulataCommon Eupithacia, Common Pug
- Euplexia benesimilisAmerican Angle Shades
- Feltia jaculiferaDingy Cutworm
- Feltia subgothicaSubgothic Dart
- Helicoverpa zeaCorn Earworm Moth
- Herpetogramma pertextalisBold-Feathered Grass Moth
- Homoeosoma electellaSunflower Moth
- Hypercompe scriboniaGiant Leopard Moth, Great Leopard Moth
- Hyphantria cuneaFall Webworm
- Manduca rusticaRustic Sphinx
- Megalographa bilobaBilobed Looper Moth
- Mythimna unipunctaArmyworm Moth, White Speck
- Nomophila nearcticaLucerne Moth, American Celery Webworm
- Oedemasia leptinoidesBlack-Blotched Schizura
- Ogdoconta cinereolaCommon Pinkband Groundling
- Orgyia leucostigmaWhite-Marked Tussock Moth
- Papaipema cataphractaBurdock Border, Potato-Stalk Borer
- Papaipema nebrisStalk Borer
- Pelochrista scintillanaSpangled Pelochrista
- Phyciodes tharosPearl Crescent, Crescentspot
- Plagiomimicus spumosumFrothy Moth
- Platynota flavedanaBlack-Shaded Platynota
- Pleuroprucha insulsariaCommon Tan Wave
- Ponometia semiflavaHalf-Yellow Bird-Dropping Moth, Half-Yellow Moth
- Pyrrharctia isabellaIsabella Tiger Moth, Banded Woolybear
- Rachiplusia ouGray Looper
- Sparganothis sulfureanaSparganothis Fruitworm Moth, Sulfur Leafroller, False Yellow-Head
- Spilosoma virginicaVirginian Tiger Moth, Yellow Woolybear Moth, Yellow Bear
- Spodoptera eridaniaSouthern Armyworm Moth
- Spodoptera frugiperdaFall Armyworm Moth
- Spodoptera latifasciaOrange-Striped Armyworm, Velvet Armyworm Moth
- Spodoptera ornithogalliYellow-Striped Armyworm Moth, Cotton Cutworm
- Spoladea recurvalisHawaiian Beet Webworm
- Stiria rugifronsSunflower Seedcropper, Yellow Sunflower Moth
- Suleima helianthanaSunflower Bud Moth
- Synchlora frondariaSouthern Emerald
- Thyridopteryx ephemeraeformisEvergreen Bagworm Moth
- Trichoplusia niNi Moth, Cabbage Looper Moth
- Vanessa carduiPainted Lady, Cosmopolite
- Vanessa virginiensisAmerican Lady, American Painted Lady
- Xestia dolosaGreater Black-Letter Dart, Greater Spotted Cutworm
- Bucculatrix fusicola
- Bucculatrix magnella
- Bucculatrix needhami
- Carmenta ithacae
- Eucosma sombreana
- Isophrictis rudbeckiella
- Isophrictis similiella
- Pelochrista womonana
- Sitochroa dasconalis
44Specialist beesPollen specialists
Pollen specialists · Helianthus
- Andrena aliciae
- Andrena asteris
- Andrena braccata
- Andrena chromotricha
- Andrena haynesi
- Andrena simplex
- Colletes birkmanni
- Colletes compactus
- Colletes rufocinctus
- Colletes simulans
Show all 44
- Diadasia enavata
- Dianthidium curvatum
- Dieunomia heteropoda
- Dieunomia triangulifera
- Dufourea marginata
- Hesperapis carinata
- Megachile fortis
- Megachile inimica
- Megachile parallela
- Megachile pugnata
- Megachile xylocopoides
- Melissodes bidentis
- Melissodes coloradensis
- Melissodes coreopsis
- Melissodes denticulatus
- Melissodes dentiventris
- Melissodes desponsus
- Melissodes illatus
- Melissodes manipularis
- Melissodes subillatus
- Melissodes trinodis
- Melissodes wheeleri
- Paranthidium jugatorium
- Perdita albipennis
- Perdita bruneri
- Perdita heliophila
- Perdita laticincta
- Perdita pratti
- Perdita swenki
- Perdita tridentata
- Protandrena andrenoides
- Protandrena piercei
- Protandrena simulans
- Trachusa zebrata
36BirdsRecorded genus food-resource interactions; not a state feeding claim
Recorded genus food-resource interactions; not a state feeding claim · Helianthus
- Agelaius phoeniceusRed-winged Blackbird
- Alectoris chukarChukar
- Anthus rubescensAmerican Pipit
- Branta canadensisCanada Goose
- Calcarius lapponicusLapland Longspur
- Calcarius ornatusChestnut-collared Longspur
- Callipepla californicaCalifornia Quail
- Callipepla gambeliiGambel's Quail
- Colinus virginianusNorthern Bobwhite
- Columbina passerinaCommon Ground Dove
Show all 36
- Corvus brachyrhynchosAmerican Crow
- Corvus cryptoleucusChihuahuan Raven
- Dryobates pubescensDowny Woodpecker
- Euphagus cyanocephalusBrewer's Blackbird
- Haemorhous mexicanusHouse Finch
- Loxia leucopteraWhite-winged Crossbill
- Melanerpes erythrocephalusRed-headed Woodpecker
- Meleagris gallopavoWild Turkey
- Melospiza melodiaSong Sparrow
- Melozone crissalisCalifornia Towhee
- Molothrus aterBrown-headed Cowbird
- Oreortyx pictusMountain Quail
- Ortalis vetulaPlain Chachalaca
- Passer domesticusHouse Sparrow
- Perdix perdixGray Partridge
- Quiscalus quisculaCommon Grackle
- Rhynchophanes mccowniiMcCown's Longspur
- Sitta carolinensisWhite-breasted Nuthatch
- Spinus psaltriaLesser Goldfinch
- Spinus tristisAmerican Goldfinch
- Turdus migratoriusAmerican Robin
- Tympanuchus pallidicinctusLesser Prairie-Chicken
- Xanthocephalus xanthocephalusYellow-headed Blackbird
- Zenaida asiaticaWhite-winged Dove
- Zenaida macrouraMourning Dove
- Zonotrichia leucophrysWhite-crowned Sparrow
Direct food only: birds recorded eating this genus across North America. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening
Plant details
- Family
- Asteraceae
- Hardiness
- Zones 4a–9b
- Soil pH
- Neutral
- Flower color
- Yellow
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Bloom · “August to October” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Flower color · “Yellow” · NC Extension Plant Toolbox
- Hardiness · “Zones 4a–9b” · NC Extension Plant Toolbox
- Height · “2–10 feet” · Minnesota Wildflowers
- Leaves · “Deciduous” · NC Extension Plant Toolbox
- Life cycle · “Perennial” · Minnesota Wildflowers
- Light · “Full sun (6 or more hours of direct sunlight a day)” · NC Extension Plant Toolbox
- primary_flower_color · “yellow” · NC Extension Plant Toolbox
- Soil · “Moist; Occasionally dry” · NC Extension Plant Toolbox
- Soil pH · “Neutral” · NC Extension Plant Toolbox
- Spread · “2–4 feet” · NC Extension Plant Toolbox
Also known as
Helianthus maximiliani
Conservation status
| Alabama rank | SNA |
|---|---|
| Global rank | G5 |
| AL status | Not verified |
| Federal status | Not verified |
Native alternatives
Find natives for your gardenSources
- Alabama Plant Atlas
- Weakley, Flora of the Southeastern United States (2025)
- NatureServe Explorer
- Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
- Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
- Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
- Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)
- Narango, Tallamy & Shropshire 2020, Few keystone plant genera support the majority of Lepidoptera species, Nature Communications

