Basil

Basil earns its spot as the essential companion for tomatoes, fast-growing in warm weather and producing ample leaves for pesto, caprese, and Thai curries all summer. A single plant yields over 50 leaves per season — 30% more than the average herb variety — and the more you pinch, the bushier it gets. Genovese works best for Italian dishes, while Thai basil elevates stir-fries; Purple basil adds visual drama. At just $4 a starter plant, basil costs 30% less than typical patio herbs and boosts tomato yields by 25% when planted nearby.