Tropicals & Tender Perennials: please help my brugs, 1 by TexasLizzy

TexasLizzy wrote:
I fell in love with these beauties many years ago while leafing through a white flower farm catalog. Imagine my exalted good fortune to find a rooted cutting at a local garden club plant sale for $1 of Ecuador Pink. I have never had real flush,but do get occaisonal blooms. I have yet created many cuttings to trade or give away. I now have four different varieties grown in pots. After wintering over in the house, and appropriately hardeing off to outisde,I was very excited to see numerous buds on all plants. Then all buds dropped off, and the leaves turned a mottled yellow and green. Please see posted pic.

I have since moved to a place where they get full sun until 3 PM and have been faithful to water and fertilize. I still see a few of these weird leaf patterns, but overall they are happier.

Please advise what I can do to stop this.

Thanks.