This applies to vegetables, too: In my experience, tomatoes don’t get as diseased in pots than in the ground (maybe because they’re up higher where air flows better or because a good potting mix is free of disease spores), eggplants become even more ornamental, and carrots are easier to harvest.
Yes, you read that right: carrots. If you have a deep enough container, you can grow really lovely carrots in a pot. They’ll typically grow straighter, especially if you have rocky ground, and are a cinch to pull from loose potting mix as compared to the ground. And the ferny foliage looks great, too — either in a mass by itself or as an accent to your favorite flowers or herbs.
Want to give it a try? There’s still time this year to plant a batch of carrot seeds!