Home Depot on Charles Street has some Bonnie Plants in stock, as well as soil amendments. We should be past our last frost (Farmer’s Almanac says it was May 15th or thereabouts) but be attentive in this cool weather. I would work some Black Kow brand (or similar)manure into the beds, myself, and although it is late Spring I’d consider a soil test (UConn) before the add (but not necessarily before you get the result).

Good luck!