please i had a month of progress with 300 leaves and 30K petals and i have screenshots of my previous place 
dang, so sorry to hear you lost your save. that's the worst. it might be related to the Cactus Lamp bug? Can you email me the details at the support email (help.ovrfull@gmail.com) and I'll try to figure it out? worst case scenario i'll find a way to get you a bunch of extra blossoms so you can rebuild quick.
You might want to look into having a way for the players to download their save file periodically (I think cookie clicker does this but I think they are using Javascript). Not sure if it would work with your set up, but it might be worth checking into since I'm assuming a lot of updates will be happening with the popularity of this game. That way if someone loses their save data, they can import their last save file and not lose everything!