Lampranthus hoerleinianus seeds germinate very easily. Seed matures three months after flowering. Seeds are manually extracted from the seed capsule.

Sow the seeds in a seed pan during the cool autumn months of the year. In the southern hemisphere these are March to May. Ensure that the seed pans are adequately drained. Sow the seeds in a mixture of sand and loam. On top of this mixture, sprinkle a thin layer of sand, 5 mm deep. It is into this sand that the seeds are sown no deeper than about 2 mm below the soil surface. If sown too deep the seeds will be smothered and will probably not germinate. Keep the area free of weeds, and water with a fine mist spray every second day. Ensure that the pans are in a sunny position. Plant the seedlings out in November of the same year when they are approximately 5 cm high.

The plant is very easily propagated from cuttings. Cut young material from a healthy bush. Cuttings should be young and soft; hardwood cuttings rarely grow into healthy well formed plants. Strike cuttings in a mixture of 50% perlite and 50% sharp river sand. Ensure that the cutting medium is kept moist. Strike cuttings when the plant is actively growing; April, May or June are the preferred months for striking cuttings. The strike rate is high (about 95%). The ideal length of a cutting is approximately 10 cm.

Lampranthus hoerleinianus grows well in relatively rich, well drained, loam soils. Plants can be cultivated in pots or planted in groups in the garden. Remember to plant them in a sunny locality, otherwise they will not flower well. Lampranthus hoerleinianus can also be used in rockeries, on steep slopes or on embankments as mass plantings.

A word of warning - this species must not be planted in clayey soils and must not be overwatered, especially during the resting period in mid summer, as they could then rot.