Strelitzia

Question

One of our Strelitzia’s foliage is turning yellow and the leaves are developing small black spots. We live in southern Spain and have had an unusually cold and wet winter. Do you think this is the problem?

Answer 1

Wait until spring is fully here and cut back the plant. Remove the yellow foliage, as they will not come back. Do not remove any greens. These articles will help you as well:
https://www.gardeningknowhow.com/plant-problems/environmental/tips-for-saving-cold-damaged-plants.htm
https://www.gardeningknowhow.com/ornamental/flowers/bop/bird-of-paradise-pruning.htm