Sow seeds in moist potting mix six to eight weeks before the last frost date. Do not cover seeds, as light aids ageratum seed germination. Water from the bottom or use a mister to prevent splashing soil that would cover seeds. Keep soil moist but not wet.
Press seeds gently into the soil mix and don't cover, as seeds need light to germinate. Keep moist until leaves emerge (5 to 14 days), and transplant outdoors after all danger of frost is past. For nursery starts, remove plant from the container and gently tease out the roots if potbound.
Easy to grow, Ageratum houstonianum performs best in full sun in rich soils with good drainage and consistent moisture during the growing season. Don't let it dry out! Avoid overhead watering and provide good air circulation to prevent the plant from powdery mildew. Light shade is tolerated in hot summer areas.
An annual and sometimes perennial flower, the ageratum flower blooms from spring until fall when receiving proper care. Caring for ageratums includes regular watering until the plant is established.. . . . .364011235824!]0000000000000009783314146947!]
