Fennel's yellow flowers will also attract pollinators to your garden. This useful herb requires moist nutrient-rich soil, unlike rosemary. Rosemary thrives in soil that is not only dry and sandy ...

Among garden plants, rosemary is an all-around powerhouse. It's perennial, hearty and drought-resistant. Its flowers attract bees and hummingbirds, and its pleasant aroma repels mosquitoes.