21:28

How To Fertilize Catasetums - with Fred Clarke

19:23

Advanced Catasetinae Growing Techniques

28:11

The Orchid Den Josh. A lecture about orchid media, potting, fertilizer and insecticide.

19:10

Ask a scientist - orchid fertilizers.

33:20

NWOS Meeting Guest speech12-2021: David Edgley “Novelty Phalaenopsis”

37:41

STOP Fertilizing Your Orchids the Wrong Way

12:19

Fertilizing Orchids

21:11

Bifoliate Cattleya care