High Plains Gardening
The gardening website of the Texas High Plains Region
Rudbeckia is advertised as heat and drought tolerant, but I have not found it so. I’ve found it to require at least weekly watering during the heat of the summer. A shortlived, southern native perennial, it likes the humidity and rain from southern climes. These very large and stunning composites may be worth your effort, just place within the correct hydrozone.
Sun to part shade in a medium or medium high water-use garden. Southern garden. Prairie and native garden.
Deadhead blooms, keep the last flowers on for winter interest. Topdress with 1 inch of compost spring and fall.