Perennial Geraniums make beautiful garden plants as they come in a wide range of sizes, colors, and shapes. There are more than 300 varieties and species of perennial Geranium, so you can easily find one that's ideal for you. The flowers come in various colors, including white, blue, purple, and pink, and have 5 petals that are sometimes beautifully patterned or veined in contrasting colors.
Hazelnut (Corylus avellana), commonly referred to as cobnut or European filbert, is a deciduous, multi-stem, brush-like sucker shrub that usually reaches a height of 12 to 20 feet. The pale gray-yellow, somewhat conspicuous male flowers appear on hanging, stalk-less catkins (2 to 3 cm long). The inconspicuous female blooms with red stigmas flower above the male catkins.
Heathers are easily over 500 varieties available. Most blooms in summer and their flower colors range from white to pink to dark purple, and their leaves are green to bright orange. Also, the leaves are scaly and small.
Hedysarum coronarium, commonly known as sulla clover, sulla, or French honeysuckle, is a perennial or biennial herbaceous plant that generally grows up to 3 feet tall is equal in width. The bright red, extremely fragrant, pea-like flowers bloom from the end of spring to the beginning of summer in dense axillary clusters on upright flower stalks.
Give your landscape a glorious late-season color with Helenium, a light-demanding perennial that offers long-lasting blooms from mid to late summer to fall every year. It features daisy-like flower clusters (2-inches in diameter) with distinctive pale yellow wedge-shaped rays and dome-shaped, dull yellow central discs.
Sunflower is the common name of one of the plants in the Helianthus genus in the flowering Asteraceae family (known as the asters, daisies, or sunflower family). The inflorescence is a large disc with a 10 to 30 cm diameter and consists of 16 to 30 golden yellow florets.
Also known as Monkey Tail and cherry pie plant, Heliotrope has been a well-known flower in the cottage garden since Victorian times. Heliotrope blooms in fall or summer. The buds turn a deep purple color and then become lighter as they age.
Hellebore is so pretty and straightforward that it has a place in almost any landscape. Its exquisite cup- or saucer-shaped blooms in white (sometimes speckled), maroon, yellow, or pink remain on the plant for many months, even after the petals have dropped.
Hepatica is a genus of the Ranunculaceae family indigenous to regions in the Northern Hemisphere. This genus comprises around 7 species of herbaceous plants. This spring-flowering perennial is also known as liverwort or liverleaf. The ½-1-inch-wide flowers have numerous elongated blue, purple, lavender, pink, or white sepals (no petals) surrounding many central stamens with yellowish anther tips.
Hibiscus (Hibiscus rosa-sinensis), also called rose mallow, is a perennial plant that belongs to the Malvaceae family. The Hibiscus produces flowers that vary in white, pink, and red shades at the end of summer and the beginning of autumn.
Hogbean (Hyoscyamus niger), also known as stinking nightshade, henbane, or black henbane, is a highly poisonous plant from the Solanaceae (nightshade) family. The conspicuous funnel-shaped flowers have 5 cream to dark yellow petals with dark centers and purple veins.
The hollowroot plant enchants with delicate carpets of leaves, on which fragrant blooms in white and deep purple-pink open. The plant belongs to the Fumarioideae (fumitory) family. Hollowroot opens its slightly fragrant white to purple or dark pink blooms from March to April.
Holly (Ilex aquifolium) has established itself as a staple in holiday décor for several reasons. This evergreen tree is easy to incorporate into any aspect of your décor. Holly is dioecious, which means that female and male flowers are found on different trees. The flowers are white with 4 petals.
An epitome of cottage gardens, Hollyhocks (Alcea rosea) are towering flowers that bloom in a wide range of colors for an extended period in summer. Hollyhocks are available in various colors, including yellow, white, red, purple, pink, blue, and even black.
Honesty is a large, hairy biennial plant native to western Asia and southeastern Europe. Honesty's purple flower clusters make their spring debut and add color as soon as the spring bulbs fade. Honesty is a biennial herb in the Brassicaceae (mustard) family.
Honeyflower (Melianthus major) is a strikingly large subshrub in the Melianthaceae family. Its leaves are alternately arranged and are made up of several leaflets with strongly serrated edges. Its flowers have a claw-like appearance with 4 dark brown to rust-red petals of various sizes.
The Hoodia cactus is a flowering plant of the family Apocynaceae. It has been called one of the 21st century’s wonder plants. Hoodia gordonii shares many similarities with the cactus but does not belong to the cactus family. Instead, the Hoodia cactus belongs to the milkweed family.
Carpinus caroliniana, commonly known as Hornbeam, is a slow-growing, trimmed medium-sized deciduous tree with an eye-catching spherical shape. The flowers (catkins) are yellow and droopy and appear as separate female and male catkins in spring.
Known for its lush foliage and beautiful flowers, Hortensia is the epitome of the summer months. With the common name hydrangea, Hortensia is a genus of more than 75 species of flowering plants native to the Americas and Asia. The flower color ranges from blue to pink, through all shades of lavender, purple to violet, as well as white and green.
Hypericum Berries are very variable and occur as shrubs, trees, perennials, and annuals. Hypericum is a genus of plants in the Hypericaceae family. Hypericum berries are available in various colors, including red, pink, green, and white. It has bright yellow five-petalled flowers with prominent stamens that bloom in midsummer.
Japanese Honeysuckle (Lonicera japonica) is sinuous and fragrant forest anesthesia. Flowering occurs from late spring to early summer, when conspicuous, tubular, fragrant, whitish-pink blooms develop in the leaf axils. As they age, the flowers turn creamy yellow.