1. All of my Pokemon fusions have the *As One* ability, combining the two current abilities into one. Usually I’d give the player a choice, however considering this gimmick would need both pokemon holding items in order to do anything, *Sticky Hold* and *Symbiosis* are useless for Applorges specifically, since they can’t pass off their held item, nor lose it. However since Florges is now a Grass-type now, *Flower Veil* actually does something. Hydrapple’s other two abilities are also useful, Supersweet Syrup especially.   
2. I took the BST of the stronger Pokemon (Florges’s 552 in this case) and added 100 stat points as if it was a mega evolution. Then for the individual stats, I took whichever Pokemon has the higher one, besides speed, which I took Hydrapple’s low speed for **Trick Room** sweeps, and to take as little damage from **Gyro Ball.** Then I took Florges’s 154 Special Defense and Hydrapple’s… everything else. However there were still 38 points left which I just added to Physical Attack.  
3. You may be worried about that awful typing, and I thought about that. All of these Ultra-Fusions reduce all compound weakness (all 4x and potential 8x weaknesses) to simple 2x weaknesses. This leaves Applorges with five weaknesses, an immunity, and side resistances. With Rollout, Gyro Ball, and Earth Power however, those can mostly be manageable, and they’ve got some pretty solid bulk to boot.  
4. Finally, if that wasn’t powerful enough, Ultra-Fusion have all eight of their participants’ moves. However they still only get one move per turn, and if they share a move, they’ll simply have one move. For example if both Hydrapple and Florges have Synthesis, they’ll have one Synthesis.

I just made this because I thought Florges was overdue for something good, and that Florges and Hydrapple should have been Psuedo-Legendaries.

Here’s a Hydrapple/Florges fusion I made, because I like Hydrapple and Florges.