I have a Blc. "Wanda's Fire" and Iwan. Apple Blossom "Fantastic" which I plan to keep in a south window. I was told to make sure it is filtered light. Are new windows with a "Low E" rating and screens considered filtered? I understand that direct sun can burn the leaves of these hybrids. What are the signs of burnt leaves? I live in western NY region 5a.

Thanks

Gregg C.