How to Plant and Grow Verbena
Plant Annual Verbena Seeds: Soak seed in water 24 hours prior to sowing (no longer). Then sow in cell packs or flats, using a sterilized, soil-less packaged mix (available at most larger garden centers). Press into soil and lightly cover. Darkness will aid germination. Cover flat with newspaper and keep out of direct sun. Kept at 75° F., germination is in 21-30 days. Transplant into the garden 12-18 in. apart.
Grow Annual Verbena: As an alternative to soaking the seeds, wrap them in a moist paper towel, place the towel in a zip-lock bag, then keep in the refrigerator for 7 days prior to sowing. Soil moisture is important when germinating verbena seeds. Soil should be slightly moist to almost dry. Plants like full sun, moderate water, good drainage. Shearing plants back once or twice per season keeps them looking tidy, and stimulates new bloom. Butterflies love verbena. Plants are deer and rabbit resistant.