 Go ahead and fill in. Get a few extra plants. It'll be a game changer, and you will be delighted that you did it because you'll be looking back on, God, that goofy guy on the radio. I like what he said. God, I feel so much better about my gardens. And you will have more butterflies and hummingbirds and all that other stuff that comes with flowers. I would say the same thing with your herb gardens. Your herbs should be full and glorious. If you're having trouble with some animals, herbs help repel other plants