I am growing nerine bowdenii for last 2 years in a 2 liter plastic pots. They grow well with new foliage but did not flower last year although the bulbs were large and fat. They multiplied a lot though They are supposed to go dormant in monsoon and then they should flower in September/October with no leaves. I am not giving them much fertilizer, last year i gave them mild potash fertilizer for blooming but no success. The temperatures are into 40C here right now and will remain in 40's until the monsoon hits in July and August when temp. will be around 35C. They get 5 hour morning sun from 6-11am.
Nerine lily not flowering