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Fort Bend County Master Gardeners, Inc. Texas AgriLife Extension

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Cosmos sulphureus

Photo from Fort Bend County Master Gardeners,
Texas Native Demonstration Garden
Daiy-like flowers composed of tooed ray flowers and yellow disk flowers; foliage is opposite and pinnately divided. Do not over fertilize or foliage grows at the expense of the flowers. Tolerant of porous soils. Some problems with bacterial wilt.

Common NameYellow Cosmos
Scientific NameCosmos sulphureus
Plant Form or HabitUpright
Annual or PerennialAnnual
Plant useBeds and borders cutflowers
Flower ColorYellow
Blooming PeriodSummer, fall
Height18-36 inches
Width18 inches
Heat toleranceHigh
Water requirementsmedium


Above information from aggie-horticulture.tamu.edu.