I have been using shade cloth from the local BORG (Big Orange Retail Giant). And I think it may be too dark. What do you use? 50%-60%.....?

no shade cloth for me.

Ted, I have apiece of 60% attached to dowels that I use for temporary afternoon shade while we're in June gloom mode. It requires climbing the ladder twice a day. Once the real summer gets here, I have 40% Aluminet that stays up because it helps reflect the hot sun.

Yes, I have a 30% Aluminet piece about 6ft. X 8ft. for the hottest sun times here, but to be honest, haven't deployed it yet. Last year I had it right on the top of the pool cage (which also gives my orchids about 20% shade anyway) to shade through the middle of the day. This year I have a big oak branch on the east side, and leaning bamboo on the west side, so actually am finding myself a bit short of sunlight.

The 30% has worked well for what I need, and if I need more shade, I just fold it in half to double the shade factor for things like seedlings. Aluminet really does keep it cooler, too.

I use 50% shade cloth to protect newly planted palms from getting sunburned. My orchids are protected by Aluminet which is much better than shade cloth.

Jim

Jim, Your roof is twin wall poly, correct? Do you remember which grade of Aluminet you are using?

Yes, I used 50% shade Aluminet.

Jim

Then it's time for 40% Aluminet. I really think that is why I am not seeing many of the plants bloom. Need protection, but the shadecloth is just too sun blocking