Seed should be stored in a cool dry place removed from direct light. To improve germination, the shiny black seeds are treated before sowing. Soak seeds in boiled water for 2-3 minutes, gently stirring the seed for the duration. Pour off the hot water, replace with cool water and soak for 12 hours. Germination occurs in 7-14 days.
Flemingia seedlings grow slow and are sensitive to competition.
As with rensonii, flemingia is usually established by direct sowing. Spacing and management for hedgerow systems or seed orchards are similar for the two species. With flemingia a larger volume of seed is needed to establish an equal length of hedgerow. A pinch of seed between the thumb and two fingers is needed to establish one meter of hedgerow with an inrow spacing of 2.5 cm. Flemingia produces flowers and seed within 6-7 months.