Guides: Perennials
Hardiness
Create a Garden with Great Winter Interest
Winters may be long and cold, but your garden can allay that dreariness and be transformed into a place of natural beauty with visually arresting textures, colors, fragrance and flowers. To create such a beautiful winter scene, you need to make sure you select the right plants.
Great Daffodils that Come Back Every Year
Naturalizing bulbs is a terrific way to brighten up lawns, prairies or meadows in spring. They also make gardening easy. Once planted, there is nothing left to do: these bulbs can stay right where they are and produce flowers year after year. What could be better?
Pretty Tulips that Come Back Every Year
Many tulips are not strongly perennial and their floral display tends to decline from season to season. They bloom well the first year, but then peter out after a couple of years. But if you select the right tulip varieties, plant them in the right spot and provide the proper care, you can be rewarded with a magnificent spring display year after year.
Helleborus (Hellebores)
There are 17 Hellebore species. Most are native to the mountainous regions of Europe, especially the Balkan region of the former Yugoslavia, south along the eastern Adriatic to Greece and Turkey. Many of the species have been interbred, producing countless hybrid Hellebores in a rich array of colors and forms.
Scilla Varieties
Treasured for their flowers, most Scillas bloom in spring but a few species produce their pretty blooms in late summer or fall. Which one is for you?
Cypripedium (Lady Slipper Orchids)
Lady’s slipper orchids are among the most desired of all hardy orchids. Often colorful and striking, these rhizomatous perennials have a distinctive inflated pouch or modified lip (labellum) that resembles a slipper or shoe. The slipper can be as large as a chicken egg or quite small depending on the species. Cypripedium is a genus of terrestrial orchids in the Orchidaceae family. It includes about 50 species, most of them quite hardy, which can be found in America, Europe, and Asia.
Dactylorhiza (Marsh Orchids)
Dactylorhiza (Marsh Orchids) are deciduous terrestrial orchids boasting lance-shaped leaves, sometimes spotted with burgundy, and showy terminal spikes crowded with purple, pink or white flowers in spring and summer. Because of their spectacular colorful inflorescences and their relative ease of cultivation, Marsh Orchids are the most widely grown European orchids. Marsh Orchids are very cold-hardy and do not require any special protection in winter. They can be grown outside in zones 5 through 8, depending on species.
Asclepias (Milkweed)
Mostly native to the U.S. and Canada, Asclepias include over 100 species of evergreen or deciduous perennials adorned with clusters of small, interestingly shaped blooms that are irresistible to butterflies. Attractive and easy to grow, they shine in many perennial gardens and are a key component of butterfly gardens, cottage gardens, or prairies and meadows.
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Eryngium (Sea Holly)
Attractive, Sea Holly plants (Eryngium) are striking ornamental perennials grown for their arresting, thistle-like, silvery or blue tinted flower heads adorned with a ruff of showy bracts. Blooming in summer and sometimes into fall, they are useful in rock gardens, coastal gardens and in borders where their steel blue flowers and foliage complement the vibrantly colored summer flowers.
Irises for the Water Garden
Blooming from late spring to mid summer, depending upon cultivar and geographic location, water irises make an attractive backdrop for any pond thanks to their architectural foliage and colorful flowers in shade of white, blue, purple, lavender, red or yellow.
Bog Garden Plants: Colorful Perennials
There are many beautiful perennial plants that will thrive in the moist environment provided by bog gardens. Here are excellent choices that will turn a slow-draining, waterlogged spot into a beautiful attraction.
Naturalizing Bulbs In The Lawn
Naturalizing bulbs is a terrific way to brighten up lawns. A surprisingly large number of perennial bulbs do well in grass, such as snowdrops (Galanthus), crocuses (Crocus), squills (Scilla), checkered lilies (Fritillaria meleagris) and plenty others charming bulbs. Left undisturbed in the ground, they will emerge again every spring, but will also gently multiply as long as they receive the right light conditions and are planted in soil with the proper drainage.
Erythronium (Dog Tooth Violets)
A member of the Lily family, Erythronium (Dog Tooth Violet) are charming bulbous perennials grown for their nodding, lily-shaped flowers adorned with gracefully reflexed petals in spring. Equally attractive is their foliage of elliptic leaves, often copiously marbled with purple-bronze.
Reliable Hardy Fuchsias For Your Garden
Fuchsias are not so fragile beauties. Some are quite hardy and can withstand temperatures down to -10ºF (-23ºC) and grow in USDA Hardiness Zones 6. They are useful in permanent plantings, adding vibrant pockets of summer color and showing up particularly well against dark evergreen shrubs. They are perfect to light up a dull, shady border.
Gladiolus (Sword-Lilies)
Real eye-catchers in the garden, Gladiolus, also known as sword lilies, are cormous perennials boasting incredibly spectacular spikes of funnel-shaped flowers in summer in a surprisingly wide range of colors. Borne atop attractive fans of sword-shaped or linear leaves, they always provide a dramatic effect with their rich and cheerful colors and their breathtaking vertical lines.
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