My aunt has several varieties of store-bought Phalaenopsis orchids which were blooming when she bought them last spring. However, after the blooms fell off, they did not bloom again.
Throughout the summer she continued to water them using the ice cube method. She kept them on a screened porch in an area where they only received morning sunlight.
The tags don't explain anything except how to water them. She has some small ones (about 4-5 inches tall when they had a flowering stalk) and some large ones (12-15 inches tall when they had a flowering stalk). They were mixed variety which she bought at the local Kroger store.
The roots still appear to be healthy and several of the plants have grown new leaves but still there have been no further blooms.
She has even tried using the "orchid food" fertilizers. Any ideas on how to help the orchids flower again?