Hello greenlady...
I'm sorry about your plant. I'm praying for you and for it. I looked up some info and this is what I found. Hope this helps
The Bird of Paradise (Strelitzia reginae) do best with at least four hours of direct sunlight a day, but should have bright light all day, with day temperatures of 68-72° and night temperatures of 50° to 55°. Generally they are hardy to about 20°. They
flower more readily when they are somewhat rootbound, which is why they are more often grown in large pots or tubs. It should be potted in a mixture of sterile potting soil, peat moss, and sand with a liberal amount of bone meal added. Excellent drainage is essential. Keep the soil evenly moist except from November-February when the plant should be kept on the dry side. Feed every two weeks from March through September with a balanced (10-10-10) fertilizer. Plants are propagated by divisions and
seed, neither of which is difficult. Divisions may take two years to reach blooming size, when grown from
seed it will take from seven to ten years before you see your first
flower.
Tana aka khorysmom