Propagate by seed, cuttings, division or separation - Sow seeds indoors in very early spring. Take basal cuttings or offshoot stem cuttings during the growing season, or divide the tubers before spring planting.

Plant the tubers "eyes up" indoors in early spring in flats of peat moss and sand. Place the trays in a dark location at 65 F until 1" tall shoots appear. Cover the shoots with additional mix and move the trays to a lighted location at the same temperature. Transfer the plants to pots when they are begun to grow well. Plant them outdoors after all frost danger has passed.

Water without wetting leaves to prevent foliar disease.

In early fall, before frost danger, gently remove the tubers from their beds, cut off the foliage, and place the plants, their roots still covered with soil, in a cool, well-ventilated location until spring.

More growing information: How to Grow Annuals

More growing information: How to Grow Bulbs

Mites
Thrips
Mealybugs
Whiteflies

Nematodes
Powdery mildew
Stem rot
Root rot

‘Allen Langdon’: large, double, deep red blooms.

‘Anniversary’: 2’ tall plants with oval leaves and toothed gold blooms.

‘Apricot Delight’: large peach blooms with toothed margins.

‘Bernat Klein’: large, double white blooms.

‘Billie Langdon’: 2’ tall plants with oval leaves and white blooms.

‘Bridesmaid’: large white blooms with rosy red margins.

‘Buttermilk’: large, double blooms in cream with peach tinting.

‘Can-Can’: 3’ tall plants with oval leaves and red-rimmed golden yellow blooms.

‘City of Ballarat’: 2’ tall plants with large bright orange blooms.

‘Fairylight’: pink-rimmed white blooms.

‘Harlequin’: pink-rimmed white blooms.

‘Memory Series’: 1’ tall plants with large double blooms in yellow, pink, red, white or orange.

‘Mr. Steve’: white blooms with dark pink margins.

‘Non Stop Series’: 1’ tall plants with large double blooms in peach, red , pink, yellow, orange or white and heart shaped leaves.

‘Ornament Series’: 1’ tall burgundy-leaved plants with red or pink double blooms.

‘Panorama Series’: small but prolific peach, red, yellow or rose blooms on heat-resistant plants.

‘Pin-up’: 1’ tall plants with deep green leaves and yellow-centered, deep rose-rimmed white blooms.

‘Sea Coral: full, coral pink blooms.