My 2 cents
You already have all the pieces to make Kerria work good whens she's ready.
Adding new bloom Epi Swimsuit would make her even better when you can. Epi will do more for Kerria than Cattleya would against the big nasties
Think about getting Dogwood on a deal. Whens she's bloomed you already have lots of solar girls to go with her and you are going to want her.
Shouldn't Fritters be in the last position to get her bonus?