Guides: Hardiness Zone 3
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.
Tulips, daffodils, hyacinths and crocus: these are the spring bloomers everyone knows. But there are hundreds of other, lesser-known beauties to plant in fall. Some are small and delicate, others tall and ungainly. All are fabulous. Wait till you see them!
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.
Lifting our spirits with their bright colors in the first months of the year, Primulas, also known as Primroses, belong to a huge genus of more than 430 species. Hardy, these cheerful perennials provide a wide range of sizes, shapes and come in almost every color imaginable. They range from tiny rock garden plants to statuesque candelabras.
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.
Blueberries (Vaccinium) make excellent ornamental edibles. Evergreen or deciduous shrubs, they are worthy of inclusion in the garden where they offer multiple seasons of interest. They can be successfully grown in any size garden or planted in containers provided they are grown in acidic soil.
The Large Flowering Amaryllis group is the most popular group with single flowers up to 8-10 in (20-25 cm). Their cultivars belong to the Galaxy group. Each bulb usually produces 2-3 stems and 4-6 flowers per stem. These exquisite Amaryllis tend to grow up to 18-24 in. tall (45-60 cm). Depending on temperature, they bloom 6-10 weeks after planting.
More and more popular, the Cybister Amaryllis are truly spectacular with their exotic, orchid-like flowers. They feature long, ribbon-like, spidery petals and splashes of bright color such as deep reds, soft green, copper, dark pink, creamy white and burgundy. They are unlike any other Amaryllis group and their cultivars belong to the Spider group.
Prized for its delightful fragrance, Syringa vulgaris (Common Lilac) is a mainstay of the spring landscape in northern and colder climates. Easy to grow, tough as nails, deer resistant and relatively free from major pests, Common Lilacs are one of the most effective flowering shrubs. Tailored to meet the needs of all gardens, this species counts 2000 cultivars.
Appealing to most gardeners, Dicentra (Bleeding Heart) are rhizomatous or tuberous perennials with heart-shaped flowers dangling in arching panicles or racemes above attractively divided leaves. Shade tolerant, they bloom over a long season, extending from late spring to early fall, in cooler climates. In hotter climates, flowering will usually stop in the heat of the summer, but may start again when the weather cools in late summer or early fall. Beautiful in leaf as soon as they sprout, they quickly add their charming blooms and make elegant additions to the garden when combined with other shade-loving perennials.
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?
There are 20 different Snowdrop species and several hundreds of hybrids. Yes, several hundreds (!). The craze known as Galanthophilia has swept through the ranks of gardening enthusiasts in the past few years. While all snowdrops look the same to the uninitiated - dainty, nodding white flowers, with a dab of green, held on a thin arching stalk at the end of a thicker stem - they reveal their differences when you take a closer look.
Native to North America, Camassias (Camas) are bulbous perennials with long racemes of up to 100 star-shaped flowers, adorned with six slender loose petals, a green center and bright yellow stamens. The flowers vary in color from pale lilac or white to deep purple or blue-violet. Borne on stout, willowy stems, they open sequentially from bottom to top for a long lasting display.
Tall and graceful, Siberian Irises (Iris sibirica) are among the most trouble-free and low maintenance perennials in the garden. The choice of available Siberian Iris cultivars varies from country to country, but a few of these beauties have won the prestigious Morgan Award, the highest award reserved exclusively for Siberian Irises within the American Iris Society.
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