Sow seeds in autumn. The medium should be light and have good drainage. Mixtures of equal parts of sand and compost, or just plain coarse river sand, will do. Cover the seeds with a thin layer of bark or sand and then water. Place the seed trays in a covered area that provides sufficient good light and ventilation. The medium must never be allowed to either dry out completely or be overwatered. Germination can take from 4-9 weeks. The appearance of the first four true leaves normally indicates the readiness of the seedlings for pricking out. Handle the fine roots with care.

The potted plants can then be placed in a shady area for 3-4 weeks to harden off before placing them in full sun. This will also be a good time to pinch out the growing tips of the seedlings to promotes a more bushy growth habit. Feed the young seedlings regularly with some balanced nutrient products. Plants will be ready for transplanting into the garden after 8 to 9 months.

This buchu can also be propagated vegetatively by taking heel, tip or semi-hardwood cuttings during late autumn / early winter, or late spring / early summer. Take fresh material from the current year's growth. Prepare cuttings of 25-55 mm, remove about a third of the foliage and cut them below the node. Dip the cuttings in a rooting hormone and place them in trays with medium consisting of equal parts of bark and polystyrene. Place the trays in a mist unit with heated benches. It takes 9-11 weeks for roots to develop. Pot the rooted cuttings in a well-drained mix and place in a shady area for 2-4 weeks to harden off. After this, they can be moved into full sun. After the next 7-8 months plants can be planted into the garden.

Agathosma thymifolia will thrive in full sun and well-drained soil where it is planted amongst other fynbos species. The ideal time for planting is in the rainy season between autumn and winter. Plants should then have a better chance of establishing in the garden before they have to cope with less water or the heat during summer.

Plant the kalk boegoe with: Coleonema album , Metalasia muricata , Delosperma litorale , Helichrysum dasyanthum , Lampranthus aureus , L. amabilis , L. amoenus , Protea obtusifolia , P. compacta , P. scolymocephala , Salvia africana-lutea , Pelargonium betulinum , Lobelia valida , Chrysocoma coma-aurea , Crassula dejecta , Senecio elegans , Agathosma imbricata , A. serpyllacea , Searsia crenata , Chrysanthemoides monilifera and Cotyledon orbiculata.

Space plants about 200-300 mm apart. This should provide ample space to encourage growth. This relatively dense planting is preferred by buchus as it helps to retain soil moisture. Provide a good thorough watering during winter. Moderate watering is required in summer.