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Dune Sunflower Dune sunflower foliage looking fresh. This plant will also Its leaves are also regenerate from the rootstock if winters unusual — large, are mild. round, thick and 1–2 ft; 6 ft relatively flat on the Site conditions ground. You can use Nectar this plant in well- Plant dune sunflower in full sun for best drained moist soils flowering. Plants will tolerate light shade from Lake Okeechobee northward. Mix in for part of the day. a few with ornamental grasses and other Dune sunflower is salt and wind tolerant. wildflowers for visual contrast. It likes exceedingly well-drained sandy Lakeside sunflower blooms from late soils. Avoid persistently moist or heavily spring to fall with showy 3-inch yellow Photo by Bob Peterson irrigated situations. flowers with greenish-yellow centers. The Dune sunflower Hardiness zones 1- to 3-foot stems rise from an evergreen basal rosette. Central and North Florida Of Florida’s 17 native sunflower species, Dune sunflower does best when used in gardeners can use it in moist-to-wet soils. gardeners will most often find Dune or zones 8A–11. Beach sunflower Helianthus( debilis). Use Rayless and Lakeside sunflowers in Dune sunflower naturally occurs along the zones 8A–9B. coast, but adapts well for inland use. Butterflies and bees All of Florida’s native sunflowers Description are excellent nectar plants for Dune sunflower, a perennial with bright butterflies and pollinators. yellow flowers, blooms throughout the year. It will die back in North Florida in winter. Depending on the variety (see Other species Caution), this plant may be spreading or Narrowleaf sunflower H.( angustifolius) upright. As a groundcover, it may sprawl also may be available at nurseries several feet, but generally is no more than specializing in native plants. It naturally 1 or 2 feet high. The upright variety can grows throughout the Panhandle, be taller. North and Central Florida south to Lake Okeechobee and is suitable for zones Planting 8A–10A. It prefers moist acidic soils. Photo by Eleanor Dietrich Rayless sunflower Give Dune sunflower room to roam, Narrowleaf sunflower’s showy golden as it spreads readily. Plant in masses flowers are 3 inches across with reddish- brown centers. It can reach 4 to 6 feet in 3 to 4 feet apart. Do not irrigate after There are three distinct height. It has long narrow, rough leaves establishment. Plants can reseed subspecies of Dune and blooms in the fall. It may die back in prolifically. Seedlings may be carefully sunflower: East Coast winter, particularly in North Florida. It’s CAUTION dug up and relocated. Be sure to water dune sunflower, West a great choice for a large, sunny, moist transplanted seedlings well until they are Coast dune sunflower meadow; a lake edge or retention pond; established. (Helianthus debilis a ditch; or the back of a bog garden. It subsp. vestitus) and Cucumberleaf spreads aggressively by its roots and may Seeds dune sunflower H.( debilis subsp. outcompete other wildflowers in a small cucumerifolius). Most native nurseries Seeds are available commercially. To garden. collect your own, allow flower heads to dry should know the difference; other on the plants, then break them open to Space plants 2 to 3 feet apart. Consider nurseries may not. Environmentally collect seeds. using them where you won’t mind seeing conscientious gardeners living along spent stems and flowers after a bloom. the coast should ask their nursery Plants Stems can be pinched back in late spring supplier for the subspecies native to or early summer to encourage shorter, their locale. This will help preserve the Dune sunflower is readily available in bushier growth and more blooms. Divide distinct identities and ecological roles containers from native nurseries. It also plants for using elsewhere. of these plants. is often available at commercial garden centers. (See Caution.) Gardeners may encounter two other Narrowleaf sunflower naturally ranges species: Rayless sunflower H.( radula) as far west as Texas and as far north and Lakeside sunflower H.( carnosus). Care as New York. Large retail outlets and Rayless sunflower has no sunny yellow ray national seed suppliers sell varieties Dune sunflower will get leggy and messy- flowers — just dark, purplish flowerheads originating from out of state. Their looking over time. Remove old stems and on 2- to 3-foot stems in the fall. Despite performance in your landscape can let new plants sprout from seeds. Light the lack of ray flowers, Rayless sunflower be different than Florida ecotypes. trims every three months will help keep attracts many small bees and butterflies. .
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