Metalasia aurea is easy to grow from cuttings and seed. Take 20–30 mm long heel or stem cuttings from semi-hard wood, from healthy plants. Remove the leaves from the lower third of the cutting, dip into a rooting hormone and place into a tray filled with 50% peat, or milled pine bark, and 50% perlite. Place the trays in a propagation unit with overhead mist and bottom heating of between 22–24°C. Once the cuttings are rooted, pot them up into small plugs in multi-trays or 1litre plastic bags. Young cuttings must be watered well and kept under shade for about three to four weeks until hardened off, after which, they should be grown in full sunlight.

Seed is collected about eight to ten weeks after flowering, depending on how warm and dry the weather has been. The flower heads begin to fluff out, expelling hundreds of small seeds with a silvery, tufted parachute attached.

The growing medium should be well drained, consisting of a combination of river sand and well-decomposed pine bark or equivalent peat product, in roughly equal proportions. The potting medium should be acidic, roughly between pH5 and 7. Metalasia germinate well if subjected to smoke treatment. It is recommended that seed is sown in late summer or autumn, but will probably germinate during other months. Seed usually germinates within six weeks and emerge as very small plantlets that should be fed with a dilute organic liquid fertilizer. The young plantlets should be pricked out into multi-trays when they are about 5 mm tall, and grown on undercover, to protect them from hard rain and direct sun. They grows quite quickly and should be planted into bigger containers when the root ball has filled the plug. Regular feeding with liquid fertilizers is recommended, but slow release fertilizers may also be used.

Metalasia aurea should be planted out in full sunlight. It appears to be good tempered and able to tolerate a range of growing conditions and soils, as long as they are well drained. This species may be planted in large groups to give a dramatic effect when in flower or in small groups, or as a single specimen in a rockery. Pruning is recommended to keep the plant compact, and to increase branching and flower production.