How To Care For Iron Cross Begonia. This begonia requires high humidity during the growing period. Check hanging baskets of begonias frequently as they can dry out in one day.
Watering fertilizing care and pests or diseases of iron-cross begonia. Let the soil dry between waterings and avoid overwatering as it may cause fungal diseases or rot. Begonia masoniana Iron cross begonia will reach a height of 05m and a spread of 05m after 5-10 years.
This begonia requires high humidity during the growing period.
Cover the plant with plastic or a glass cloche and keep the plant around 60F16C for 6-8 weeks. Cover the plant with plastic or a glass cloche and keep the plant around 60F16C for 6-8 weeks. So water heavily when you do water but do not water often. If the soil does not have good drainage amend it with sand or plant the begonias in a raised bed.