Originally Posted by Drip

For Leucocoryne, it doesn't matter if solar blasts are made during the battle of another squad. So if you put her on team 1, and you fire a solar blast during a team 2 battle, she still gets her +10% ATK, which persists until the map is finished.

On the other hand, Strawberry Candles' Shine Crystal drop bonus only affects the team she's in, so the Solar Blast team would benefit from her, and on longer boss fights for that team, you might even be able to squeeze a second solar blast within the same fight. In which case you'd get 2 powerful solar blasts, and Leucocoryne still gets +20% ATK, even if she's on another team.

Chocolate Cosmos and Strawberry candle sadly bite eachother though. On some maps with very few empty nodes, they end up overwriting eachothers' node, so you could end up with 2 chocolate nodes and only 1 solar node, or the other way round, even though the description says they'll spawn 2-3 nodes each.
I noticed this on the 80 stamina SG, which has 4 empty nodes, but sometimes only 3 are used when you have both girls, which implies that one or more nodes of one type got overwritten by nodes of the other type.

oh ty, that's really good to know =)