Whether you're growing them outside or in your indoor herb garden, herbs are fantastic plants, but who says they have to be just plain green?
1. Meadowsweet (Filipendula ulmaria)
Also known as Queen of the Meadow, this graceful perennial herb produces frothy clusters of creamy white flowers in mid to late summer. The large, dark green leaves grow in creeping clumps, dividing plants every 2 to 3 years to control their spread. Plants can reach up to 4 feet (1.2 m) tall in bloom, although they may be shorter if the soil is dry and in USDA hardiness zones 3 through 9.
2. Sweet Joe Pye Weed (Eupatorium purpureum)
Tall Sweet Joe Pye Weed is the glory of the late summer garden. Its domed clusters of rosy pink to light purple flowers tower over shorter herbs, with sturdy stalks in multistemmed clumps. This is one of the flowers that promise to bring Monarch Butterflies to your yard, as well as lots of attention from other garden visitors. Stems reach up to 8 feet (2.4 m) tall and bloom in USDA hardiness zones 3 through 8.
3. Anise Hyssop (Agastache foeniculum)
This perennial herb grows in bushy clumps, with upright branching stems topped with spikes of lavender-blue flowers and blooms in mid to late summer. The flowers attract pollinating bees and other beneficial insects to your garden. Both the leaves and the flowers are fragrant when fresh or dried, so they're a great addition to potpourri. It will self-sow or grow in new places from the seed it drops, so pinch off most flowerheads before the small, black seeds mature and drop. Plants grow up to 3 feet (90 cm) tall and are best in USDA hardiness zones 4 through 9.
4. Feverfew (Tanacetum parthenium)
Feverfew may look delicate, but it is a sturdy, easy-to-grow herb that blooms from early summer to early fall. The white-petaled, yellow-centered flowers look like tiny Daisies. Pinching off the spent flowers can extend the bloom season, reducing the number of self-sown seedlings. You can also cut the whole plant to the ground after blooming for a flush of new growth. Plants grow up to 2 feet (60 cm) tall and in USDA hardiness zones 4 through 9.
5. Yarrow (Achillea millefolium)
Common Yarrow produces flattened clusters of white, red, or pink flowers on slender stems clad in feathery green foliage. These summer flowers are great for fresh or dried arrangements. If you prefer yellow flowers, you could substitute another species or hybrid. Plants are usually up to 2 feet (60 cm) tall and grow in USDA hardiness zones 3 through 8.
6. Purple Coneflower (Echinacea purpurea)
Purple Coneflower produces clumps of sturdy stems topped with large, rosy pink, daisy-like flowers that have raised, orange-brown centers. The blooms of Echinacea purpurea 'Springbrook's Crimson Star' are particularly deep rose-pink, and you may also find cultivars with white flowers, such as Echinacea purpurea 'White Swan'. Plants grow up to 4 feet (1.2 m) tall in USDA hardiness zones 3 through 9.
7. English Lavender (Lavandula angustifolia)
English Lavender is as pretty to look at as it is heavenly to smell, and it keeps its distinctive fragrance when dried. It produces spikes of purple-blue flowers on slender stalks over shrubby clumps of narrow, silvery leaves in midsummer. Lavandula angustifolia 'Munstead' and Lavandula angustifolia 'Hidcote' are more compact, growing only 18 inches (45 cm) tall, with dark purple flowers. Lavender is a good choice for the front of the border or a container garden, but it must have good drainage to stay healthy. It grows best in USDA hardiness zones 5 through 8.
8. Scarlet Bee Balm (Monarda didyma)
The summer flowers of this spreading herb are usually red, but you can also find cultivars with pink, purple, or white blooms. Monarda 'Marshall's Delight' is a good pink variety that resists powdery mildew, a fungal disease that causes gray patches on the leaves. In mid to late spring, pinch out up to half of the stems at ground level to thin out crowded clumps. Plants grow up to 3 feet (90 cm) tall and are best in USDA hardiness zones 4 through 9.
9. Rue (Ruta graveolens)
Even if it didn't bloom, Rue would be worth growing for its foliage alone. The bright blue-green leaves are deeply divided, giving the whole plant a delicate, lacy look. In midsummer, the clumps are accented with clusters of bright yellow-green flowers. Good drainage is essential for healthy growth. Plants grow up to 2 feet (60 cm) tall and are best in USDA hardiness zones 5 through 9.
10 Marsh Mallow (Althaea officinalis)
Marsh Mallow is a beautiful herb that produces attractive pink or white hollyhock-like flowers for most of the summer. The broad, oval to heart-shaped, gray-green leaves are velvety soft. Plants grow up to 4 feet (1.2 m) tall and in USDA hardiness zones 3 through 8.
- Plantopedia: Browse flowering plants by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, or Origin
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