"Well, you have a flower garden here, and I have one in the church. I've got a little flower delivery business going, but I'm worried about exhausting the supply in the church if they aren't growing back, after all. Would you consider putting some of what you have here toward the business? Only whatever amount you're comfortable with, of course!"

Maybe they'll all grow back fine, or maybe they'll realize soon that they're a bit limited in their stock. In any event, it's worth seeing if he wants to be involved in any way.