Price per 2 seeds. Phyllobolus tenuiflorus (Mesembryanthemaceae) The plant produce a caudex which can grow up to 3cm in diametre. Sowing : Sow in trays, pots, etc of good seed compost in a propagator or warm place to maintain an optimum temperature of 20-25C.? Cover with peat or sand. Locality : Ex Hort. Date of harvest : December 2014.