Propagation
Sow fresh seeds in situ in pairs 25 mm (1 in) deep in a prepared raise garden bed, then thin out after germination.  

The seeds germinate at temperatures of  70 to 90°F and take 2-weeks to emerge then should be hardened off for one week  then planted out after the last frost in a well-drained prepared bed with a soil temperature between 20º to 30º C. (68º to 86º F).

Botanic information
Leaf: The variable dark green broad-ovate to reniform leaves are up to 300 mm (1 ft) or more long by 250 mm (9¾ in) wide and have an obtuse apex. The margins may be lobed, undulating or serrated and the cordate base has a thick pubescent petiole is up to 70 mm (2⅔ in) long. The upper surface is dull green with a quilted-like appearance and the pale green pubescent underside has prominent venation. They are arranged alternately along the fleshy pubescent green stems.

Flower: The plant is monoecious with male and female flowers. The bright yellow rotate to funnelform flowers are up to 25 mm (1 in) or more wide with 5-broad-ovate deeply veined petals. The male flowers have 3-seperate stamens and the female flowers have an inferior ovary. They appear solitary or in a small cluster on spurs in the leaf axils during summer.

Note:
The male flowers are rarely solitary and normally appear in a small cluster and that the female flowers are normally solitary.

Fruit: The very variable globose to oblong fleshy fruit varies in colour and texture. They have a thin or thick outer layer and the inside is fleshy and contains numerous horizontal seeds. The Rockmelon / Cantaloupe fruit is up to 150 mm (6 in) or more in diameter and has a musky aroma.