How to grow australian rock orchids?

Australian rock orchids (Dendrobium speciosum) are spectacular native plants that are surprisingly adaptable to cultivation! I've grown these for 15+ years:

They're epiphytes in nature - growing on rocks and trees. Recreate this with very free-draining mix: large bark chips, perlite, and charcoal. Terracotta pots work well. Bright, filtered light is ideal - similar to cattleya conditions.

Water thoroughly when mix approaches dryness, less in winter during dormancy. They appreciate good air movement. Fertilize with balanced orchid food during active growth, reducing in winter.

These orchids form massive clumps over time - don't divide too often as they bloom better when crowded. Winter cooling and reduced water encourage spring flowering spikes with hundreds of fragrant blooms!

Australian Native Orchids Society has species-specific advice from experts!