We don't have a HD here; wouldn't shop it if we did...just TOO ORANGE! We do have a Lowe's, but I don't buy plants there; way too expensive. I do raid their trash sometimes when I need plastic trays, tho.
I buy my seedlings from the local Sunflower grocery store. They get about 3 shipments per year from an independent grower over around Tuscaloosa, AL (Roll Tide!). The 1st shipment is due in next week. A 3-pack of tomato or pepper plants is $1.19+tax. A single tomato plant at Lowe's starts at about $3.78... Crazy, right?