Greenhouse Chat April 2025

Ron McHatton
Thursday, April 3rd, 2025
8:30 PM – 9:30 PM EST EST
Join Dr. Ron McHatton as he answers your questions about all things orchids. Please send your question and pictures to Sandra Svoboda at greenhousechat@aos.org by March 31, 2025.

Summary

Greenhouse Chat Index April 2025

05:38 Repotting Catasetum and Cattleya and others

10:46 Vanda watering

13:12 Paphiopedilum first blooming as a seedling

17:04 Paphiopedilum leaf damage

19:49 Rhynchostele ehrenbergii mounting issues

22:56 Repotting/dividing orchids with a lot of air roots

25:00 Sphagnum moss with mold

27:43 Phalaenopsis white spots on the inflorescences

29:05 Root trimming when repotting

31:07 Cattleya loddigesii possible virus

32:38 Lighting for a mixed collection

35:37 Water and pH levels

39:45 Cattleya white coating on the leaves

46:38 Phalaenopsis inflorescence coming out of the potting mix

48:20 Phalaenopsis freeze damage

56:48 Reusing pots

59:18 Micronized sulfur products

1:01:36 Homemade plant hormones

1:03:47 Slow-release fertilizer

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