#11 Elecampane
Image Credits: Wsimag
Elecampanes are great for cottage gardens, herb gardens, and wildflower gardens. They grow up to 6 feet (150 cm) tall in moist locations, preferring USDA hardiness zones 3 through 7.
#12 Globe Thistle
Image Credits: Gardenloversclub
Here is an exceptional flower with a bundle of thistle petals that come together in whimsical shape. This plant grows 2 to 4 feet (50 to 100 cm) tall when grown in USDA hardiness zones 3 through 8.
#13 Hibiscus
Image Credits: HomeopathyCart
Hibiscus as a hedge to protect other plants from wind. The flowers (the part of the plant you can dry and use for tea) are up 6 inches (15 cm) wide and come in red, pink, white, and purple.
#14 Hollyhock
Image Credits: Twitter
Hollyhocks grow 5 to 8 feet (125 to 200 cm) tall with delicate, heart-shaped blooms that come in reds, pinks, whites, and pale yellow. Grow hollyhocks in USDA hardiness zones 2 through 10.
#15 Joe-Pye Weed
Image Credits: My Garden Flowers
Each of its many flowers contains 5-7 florets of purplish-pink blossoms that release an appealing scent something like vanilla. This is a low-maintenance plant that attracts butterflies and hummingbirds.
#16 Meadow Rue
Image Credits: Home Stratosphere
Most meadow rues sport purple or lavender blossoms that afford a spectacular focal point with they are grown in a cluster. Meadow rue grows to 4 to 6 feet (100 to 150 cm) tall in USDA hardiness zones 4 through 7.
#17 Monkshood
Image Credits: Home Stratosphere
This hooded, purplish, showy flower grows 2 to 4 feet (50 to 100 cm) tall. Every part of the plant is poisonous, although in proper doses it can be used in herbal medicines prepared by experts. Grow this plant in rich soil in a semi-shaded location.
#18 Native Goldenrod
Image Credits: Home Stratosphere
Allergy potential aside, native goldenrod is a wonderful background plant for fall gardens. Native goldenrod is blissfully easy to grow in full sun and on well-drained soil.
#19 Nicotiana
Image Credits: Bijoux To Cara
Flowering tobacco is an annual plant that emits a jasmine-like scent in the evening. It grows up to 6 feet tall if it is given partial shade and moist but not waterlogged soil.
#20 Perennial Sunflower
Image Credits: Home Stratosphere
Grow perennial sunflower, which can also reach 6 to 8 feet (150 to 200 cm) in well-watered loamy soil for late-summer and fall bloom.
