South Australian Terrestrial Orchid Culture Notes Part Three of Four Parts

Maintenance throughout the year

Summer

  • During summer, very lightly water surface of pots weekly to prevent tuber desiccation especially if dormant seedlings are in the pot.
  • Divide overcrowded pots in summer. Tip out and break into slices like cutting a cake. Stand a slice in a new pot & fill spaces with fresh mix. Take care to keep the surface layer at the surface of the new pot.
  • Add fresh leaf litter to surface layer in January to February to March.
  • If surface moss gets too thick, peel it off and discard in summer.

Autumn

  • Start heavier watering of pots weekly from mid March.
  • Mix seed with fine dry sand and sprinkle on mother pots in April.
  • Water as required in autumn, winter & spring so that pots never dry out during the growing season yet are not soggy wet.
  • Leaves appear from Anzac Day to June.

Winter

  • Look for flower buds down inside the largest leaves from mid July onwards.
  • Look for new seedling leaves from August to October.

Spring

  • Enjoy and photograph flowers September to November.
  • Hand-pollinate flowers in September – October. Flowers collapse within days of fertilisation.
  • Collect seed pods as they turn brown just before they split open in November – December.
  • Dry & store seed over summer in paper envelopes kept indoors.
  • Allow pots to slowly dry out in mid – late November to induce dormancy and ripen tubers. Plants die down completely in summer to underground tubers.

For further information on growing fungus – dependent orchids refer to:

  • Orchids Australia’ February 2006, P58, or ‘The Orchadian’ Vol 15, Number 3, March 2006, P100.

Pot of Caladenia latifolia cultivated by Les Nesbitt

Caladenia latifolia cultivated by LN (Fast Multipler)

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One thought on “South Australian Terrestrial Orchid Culture Notes Part Three of Four Parts

  1. Pingback: A Timely Reminder | NOSSA

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