Why wait to run out of Founders Fish Fertilizer to order more? A 12-pack box of Founders Fish Fertilizer will keep all of your roses blooming happily through the whole season. This stinky fertilizer is the key to making your roses bloom more profusely, and will help build healthy bacteria in your soil so your roses will thrive for years to come. Purchase this box prior to spring and start fertilizing after the last frost. This fertilizer is shelf stable and will not expire if stored properly. *Product packaging may vary.