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Family: AsteraceaeMain Season: AutumnFlower Colour: YellowLeaf Colour: GreenFoliage: DeciduousPosition: SunSoil Type: Ordinary, medium loamHeight: 1.8m to 2.4m (6' to 8')Peat Free? YesHardiness Guide: RHS H7 minimum at least -20CPot Size: 1L
Bright yellow sunflowers are produced in late summer and autumn on this tall north American prairie plant. Spreads but not uncontrollable. Average soil in sun. 2.4m.
This is one of the widespread flowers from the taller prairie often found with familiar garden plants like Eupatorium, Panicum, Aster (now Symphyotrichum) and Solidago. Obviously for garden use it would be ideal in prairie plantings but it also suits traditional herbaceous borders well. If grown in an open sunny position with surrounding tall plants it should be self-supporting but in less favourable places it can flop, a Chelsea-chop will be effective in reducing height and the tendancy to flop.
Distinctive with it's pointed rays on the golden sunflowers, which get to 10cm diameter, and a slightly grey cast to the plant caused by dense but very fine hairs.
Native to much of north America.
Syn. Coreopsis maximiliani