Greenhouse Chat October 2015

Orchid-related questions, answered by AOS experts. Note the specific times below if you wish to to watch or listen to those topics.

01:10 Grammatophyllum multiflorum var. multiflorum (scriptum var. citrinum) leaf drop

06:16 Temperature difference – what plants blooms that do not need a big day/night temperature difference

09:35 Cattlleya care in a home environment

12:56 Cattleya – do they need cool temperatures at night to bloom

17:16 Cattlleya – what causes sheaths to dry, or be empty, blind sheath

21:53 Why do some cattleya leaves, bend, twist

26:07 Phalaenopsis keiki care, can you, should you divide

31:11 Blooming and light, proper light levels for Phalaenopsis in home not blooming

36:29 To repot or not, when to repot, use of clear pot, media

40:22 Potting – use of Styrofoam peanuts and other methods of drainage

43:09 Fertilizing – why do we have to fertilize, can we grow without it

44:44 Aerangis growing well, never bloomed

47:48 Orchids roots tipped in black, won’t grow past an inch or so

53:01 Fungus, root rot, over watering, watering too late in the day

58:19 Big headed ants in Florida

59:50 Do cool humidifiers grow mold, bad for orchids

1:00:46 Miltoniopisis culture, root rot, do they like to stay dry

1:02:40 Slow release or water soluble fertilizer, why urea free

1:04:37 What is the best potting medium for Epidendrum

1:06:36 vanda has never bloomed, proper light level for vandas

1:09:01 Tips for blooming Grammatophyllum

1:10:27 Greenhouse floor recommendations

1:11:45 Orchid rooted to tree, can it be moved, or remounted, use of cake knife

1:15:38 Gas exchange in roots, how long can you submerge a plant in water