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I have grown Cyp's in very hot summer temperatures in Connecticut - every year a few days over 100 F. The albaflora Cyp reginae clump at the top of the Cypripedium sales page at gardensatposthill.net was next to a stone wall facing due West and its oak tree shading was lost when the oak fell over. It grew many years with full, blazing sun from 1 or 2 pm to as late as 7 pm in July and with lots of heat radiating from the stone wall. Not something I would recommend but when we moved to WA it had 14 growth buds for the next year and is now doing well in the Seattle area. Another that I have here in WA that does well with too much sun is Cyp formosanum. I have a nice, expanding clump that gets full sun about 5 hours each day. The caveat for coastal NC though is that while temps get to 90 or so, it is only for 3 or 4 days in August most years. But many other summer days are low 70s and sometimes 60s (we are on the Sound) and even when it is 90 during the day it is 55-60 at night. This year was beastly, we had 3 days with sequential 101, 105 and finally 110 and 12 total days above 90. Those temps killed or maimed many trees in the area and we lost several prize Rhododendrons. However, the clump of formosanum and a neighboring clump of Sabine came though without even leaves browning. Sabine is highly surprising here in its sun tolerance. But WA is a magical place for Sabine. All of mine grow so fast that I am astonished each year. That was NOT the case in CT and some of the plants were the same ones. You might want to take a look at Clark Riley's website cyps.us Clark lives in Baltimore. I lived there for several years and it is hot, hot, hot and humid, humid, humid. During the summer it is easily as hot and humid as Charleston SC where I grew up. Clark talks about plants with which he has had success.It was mentioned to look into Plant Delights. They keep Cyps and a couple of years ago Tony wrote an article in Slipper Orchids describing the hybrids and species which grow well for him. If you join the Slipper Orchid Alliance you can download the past issues from their website. It is a worthwhile organization for anyone who is a member of this forum. Good luck!
I have grown Cyp's in very hot summer temperatures in Connecticut - every year a few days over 100 F. The albaflora Cyp reginae clump at the top of the Cypripedium sales page at gardensatposthill.net was next to a stone wall facing due West and its oak tree shading was lost when the oak fell over. It grew many years with full, blazing sun from 1 or 2 pm to as late as 7 pm in July and with lots of heat radiating from the stone wall. Not something I would recommend but when we moved to WA it had 14 growth buds for the next year and is now doing well in the Seattle area. Another that I have here in WA that does well with too much sun is Cyp formosanum. I have a nice, expanding clump that gets full sun about 5 hours each day. The caveat for coastal NC though is that while temps get to 90 or so, it is only for 3 or 4 days in August most years. But many other summer days are low 70s and sometimes 60s (we are on the Sound) and even when it is 90 during the day it is 55-60 at night. This year was beastly, we had 3 days with sequential 101, 105 and finally 110 and 12 total days above 90. Those temps killed or maimed many trees in the area and we lost several prize Rhododendrons. However, the clump of formosanum and a neighboring clump of Sabine came though without even leaves browning. Sabine is highly surprising here in its sun tolerance. But WA is a magical place for Sabine. All of mine grow so fast that I am astonished each year. That was NOT the case in CT and some of the plants were the same ones.
You might want to take a look at Clark Riley's website cyps.us Clark lives in Baltimore. I lived there for several years and it is hot, hot, hot and humid, humid, humid. During the summer it is easily as hot and humid as Charleston SC where I grew up. Clark talks about plants with which he has had success.
It was mentioned to look into Plant Delights. They keep Cyps and a couple of years ago Tony wrote an article in Slipper Orchids describing the hybrids and species which grow well for him. If you join the Slipper Orchid Alliance you can download the past issues from their website. It is a worthwhile organization for anyone who is a member of this forum.
Good luck!
