Choose from this list:
Aspen, aster, bee balm, bladder campion,  buttercup, chiric sanaga, chamomile, cardinal, daisy, dill, chestnut, comfrey, Elderflower, fireweed, ghost pipe, hornbeam hypericum, jasmine, jasmine tobacco,  mullein, mustard, mimosa, mandevilla,  monkey flower, peony, rose of Sharon, white rose,  sunflower, snowdrop, sacred tobacco, tulsi, trumpet flower, valarian.