Very few lomandras are in general cultivation and L.multiflora is in this category. Limited experience indicates that it is a hardy plant which would be an ideal feature in a rockery or as a foreground plant in a bush garden. Plants should succeed in moist, well drained soils in a range of climates. However, given the wide distribution of the species it would be wise to select propagating material from plants growing in a similar climate to that where it is to be cultivated. Plants should be grown in full sun or partial shade.
Propagation is reported to be reasonably easy from seed.
Established plants could probably also be propagated by division. You may have reached this description from one of several different sources. Thanks to John Wrigley from information on the distribution and nomenclature of this species.