Spring bulbs are so colorful and joyful after a long winter that I want to extend the season and make them last as long as possible. It's easy to have a sequence of spring bulbs in bloom throughout the season. Start with late winter to early spring bloomers like snowdrops, winter aconites, crocuses and glory-of-the-snow. Then add the main season stars--the daffodils, tulips, hyacinths and fritillarias--and segue into summer with alliums and lilies. Among the narcissus and tulips there are many different species and types to plant that allow us to enjoy these beautiful flowers from February to June.
These are the glamorous diva cousins of our common culinary onions, leeks, chives, garlic, and shallots though even the commonest alliums can be decorative in the vegetable garden if allowed to bloom. But the ornamentals have that special something be it color, height or size that make them standouts in the spring garden.
Allium 'Ambassador,' hybrid ornamental onion, Zones 5-8. Lovely deep purple globes of tightly packed florets up to 7" across with strong stems up to 4' tall. It makes a striking accent rising above other perennials as shown here with 'Moonshine' yarrow at the Sarah Duke Botanical Gardens in Durham, NC. Other varieties with large globes include A. giganteum, 'Gladiator,' 'Globemaster,' and 'Purple Sensation.'
Allium christophii, giant allium or star of Persia, Zones 4-8. Star of Persia is an ornamental onion with large (up to 10"), loose airy globes of star-like flowers atop a stem seemingly too short to support the huge head. The leaves emerge in early spring and begin to disappear about the same time as the flowers are blooming so you want to plant something in front of them to hide the decaying leaves though the flower head will remain interesting as it dries.
Allium shubertii, tumbleweed onion, Zones 5-9. This one is astonishing! It looks for all the world like a fireworks display with large, airy heads up to 16" in the right conditions. Some of the flowers form a ball close to the center like a typical ornamental onion, but the rest zoom out on long stems to create the "explosion." The dried seed heads remain interesting in the garden and can be used for decorations.
Allium stipitatum, ornamental garlic or Persian shallot, Zones 4-8. This is a stunning allium to grow in a mixed herbaceous border among perennials. Like most of the alliums, the foliage will begin to die back before the flowers are finished, so it is a good idea to plant them among perennials to hide the dying foliage. The foliage, however, must not be removed until it has completely died away so it can make food for next year’s bloom. The tall, slender stalks can reach 3-4’, but the dense flowerhead are not as large, as say, ‘Ambassador’ above, or some of the other hybrids. Leaving the dried flowerheads on the plants continues to provide interest in the garden even after the color fades. ‘Mount Everest’ is a beautiful white variety.
Allium uniflorum, ornamental onion, single-leaf onion, Zones 5-8. This California native is a smaller ornamental onion, growing to about 16,” and in spite of the common name, does have more than one leaf. The lavender-pink flowers appear in late spring to early summer. Preferring well-drained soil and full sun, these bulbs will go dormant in the summer and prefer conditions on the dry side.
Anemone apennina, Apennine or Italian windflower, Zones 6-9. These charming spring bulbs are very effective planted in large drifts to carpet the ground in a woodland garden. They are long-lasting, whitish, daisy-like flowers rise above the foliage about 6-9". They like a dry dormancy in the summer, so no supplemental watering is needed.
Anemone blanda, Grecian windflower, Zones 4-7. Grecian anemones are similar to the Apennine, but are blue, white or pink, and a little shorter at 3-6". Treat them the same way--plant them in drifts in open woodland areas or under flowering trees in humusy, well-drained soil.
Anemone coronaria, poppy anemone, Zones 6-9. Poppy anemones are have larger flowers (3") and are taller (12-18") than A. apennina or A. blanda, and come in clear, bright colors of red, blue, purple, white and magenta with black centers. Unlike the other two species which only bloom in spring, you can plant tubers of A. coronaria in fall for spring blooms, in spring for summer blooms, and again in summer for fall blooms. The two main strains are De Caen with single flowers (shown below), and St. Brigid which has double flowers.
Arisaema sikokianum, gaudy Jack, Zones 5-7. Related to our woodland wildflower, Jack-in-the-Pulpit, this Jack is larger and showier--hence the nickname "gaudy Jack." The contrast of striped hood and pure white center is striking.
Bellevalia paradoxa, bellevalia, Zones 7-9. Often mistaken for grape hyacinths, which they resemble, bellevalias bloom at the same time from tightly clustered racemes of buds that open from the bottom over a goodly period of time.
Bletilla striata, Chinese ground orchid or hardy orchid, Zones 5-9. You wouldn't think that such a charming, apparently fragile little orchid could survive out-of-doors, but it does. Growing from underground tubers called pseudobulbs, these spring bulbs prefer moist humusy soil and a partially shady location making them good companions for hostas, Iris cristata, epimediums and heucheras. The narrow, pleated leaves are a good textural accent throughout the summer, and the elongated seedpods (also pleated-looking) are also interesting. The purple color is the most common, but there is a white form called 'Alba,' and a variegated form 'Albostriata.'
Camassia leichtlinii, Leichtlin camass, Zones 5-9. This North American spring bulb is becoming more and more popular in residential gardens. This is a large plant that can grow 3-4' tall. Plant it in groups in the border in full sun and provide ample moisture during the blooming season. Flowers can be blue, purple, white or cream.
Chionodoxa forbesii, glory-of-the-snow, Zones 4-8. These small blue flowers are so eager to put on their display that they will often bloom through patches of snow in late winter or early spring. They are charming planted under trees or shrubs or through grass where they can bloom before the emerging leaves of the trees block the sun. Where happy, they will self-seed and carpet the ground in blue increasing the show every year. And they are deer resistant. Commonly blue with white hearts, there are also white and pink forms.
Convallaria majalis, lily-of-the-valley, Zones 3-8. Lily-of-the-valley is treasured for its sweetly-scented dainty nodding white bells that bloom in spring. It grows best in a partly shady to shady area where its rhizomes, called pips, can spread. It makes a lovely ground cover for a woodland area, and as all parts are quite poisonous, is avoided by deer and other woodland creatures. In addition to the typical white, there is also a pink form, C. majalis var. rosea. Added interest comes from bright orange-to-red berries in the fall.
Crocus vernus, Dutch hybrid crocus, Zones 3-8. Many of our favorite spring flowering crocuses are hybrids of C. vernus and other species. They emerge in late winter to spring, sometimes through patches of snow, cheerily announcing the new season. The corms can be planted close together and about 4" deep--so do plant them in substantial groups for the most impact. They look lovely planted en masse in lawns or under trees, but if you are going to plant them in grass remember that you cannot mow that area until the crocus foliage has completely withered so it can store food for next year's bloom. Crocuses come in white, yellow, blue and purple and some favorite cultivars are 'Golden Yellow,' yellow; 'Jeanne d'Arc,' white; 'King of the Striped,' violet with darker striping; 'Remembrance,' dark blue; 'Twilight,' deep violet-blue; and 'Vanguard', purple inside with lighter grayish-mauve outside.
Fritillaria imperialis, crown imperial, Zones 5-9. Imperial indeed, these majestic blooms rise on 2'-3' stalks seeming to gaze on their subjects below. Nodding bells of yellow or orange encircle the top of the stem and are crowned with a pineapple-like tuft of leaves. Plant these large bulbs about 12" deep in rich, well-drained soil in full sun. 'Maxima Lutea,' yellow, or 'Rubra Maxima,' red, are the best-known forms.
Fritillaria meleagris, snake's head fritillary or guinea hen flower, Zones 3-8. The checkerboard pattern of the nodding purple and white blooms is one of the most distinctive in nature. Growing about a foot tall on slender stalks with grassy foliage, this European native is found naturally in damp meadows in full sun and prefers the same conditions in the garden. Plant as soon as available in the fall and do not allow the fragile bulbs to dry out. Plant together in clumps where they can stay undisturbed and they will self seed if happy.
Gladiolus communis ssp. byzantinus ‘Cruentus,’ sword lily, Zones 5-10. I fell in love with this hardy glad on a trip to England, and of course I had to have some. Such an outstanding color in the spring garden! Well, I ordered them from a reputable source and eagerly anticipated the color—only to have them bloom a pallid, washed-out, non-descript pink, not this rich magenta verging on purple. I learned that inferior bulbs are common and it is hard to find the real thing. www.oldhousegardens.com is a good source. Plant the bulbs in the fall for late spring, early summer bloom (depending on location), and make note of where they are since they go dormant in the summer.
Hyacinthoides hispanica, Spanish bluebell or wood hyacinth, Zones 4-7. A lovely choice for a woodland garden, these spring bulbs bear 12-to-15 blue, pink or white bell-shaped flowers encircling the stem (unlike H. non-scripta below which flowers on one side of the stem). Also, their petals do not recurve as much as the English bluebells nor are they as fragrant. Good cultivars are 'Excelsior,' blue; 'Queen of Pinks,' pink; and 'White City,' white.
Hyacinthoides non-scripta, English bluebell, Zones 5-7. This is the flower that carpets the famed "bluebell woods" of England in spring to enchanting effect. The slender stalk has flowers on one side of the stem only and gently curves seeming to bow under the weight of the blooms. Each violet-blue bell-shaped flower has petals that scroll up at the tips. Very charming, and fragrant as well. You can start your own bluebell wood by planting under trees in partial shade where they can naturalize undisturbed. In addition to the blue, there are white 'Alba,' and pink 'Rosea,' forms.
Hyacinthus orientalis, hyacinth, Zones 3-7. Intensely fragrant, the compact flower spikes are rather formal in appearance, but make a great color impact in the garden. They are also great for forcing indoors for fragrance and the promise of spring in the winter. Plant them outdoors in good, well-drained soil in a few groups or clumps, or in pots where they can be enjoyed for their fragrance. These spring bulb prefer cooler climates, so in the South they are best treated as annuals. There is a wide range of colors and cultivars to choose from such as 'White Pearl,' white; 'City of Haarlem,' pale yellow; 'Fondant,' pale pink; 'Pink Pearl,' pink; 'Jan Bos,' deep pink; 'Delft Blue,' blue, and 'Crystal Palace,' purple.
Ipheion uniflorum, spring starflower, Zones 5-9. These little spring bulbs are great for naturalizing in woodlands as they multiply quickly. The star-shaped blooms have six pointed petals and a deep center cup from which the yellow stamens peek. The species is variable in color from bluish-white to soft violet, but there are selected cultivars for more uniform color such as 'Wisley Blue' with larger flowers of mid-blue; 'White Star, white; and 'Rolf Fiedler,' a deeper violet blue with rounder petals.
Iris X hollandica, Dutch hybrids, Zones 5-9. Dutch irises were created in the early 20th c. in Holland from crosses between several species of irises mainly for the cut flower market. True bulbous irises, Dutch irises are easy to grow and extend the iris season as they bloom after the tall bearded irises. The tall, slender leaves appear in winter and bloom in mid to late spring; after flowering the leaves die back until the next winter. Varieties include 'Apollo,' white and yellow; 'Eye of the Tiger,' purple standards and bronze falls with yellow blotch ; 'Gipsy Beauty,' purple standard with lighter veined falls and a yellow blotch; 'Oriental Beauty,' blue standards with yellow falls; 'Professor Blauw,' violet blue w/yellow blotch on falls; 'Rosario,' pink-violet; White Wedgwood,' white.
Leucojum aestivum, summer snowflake, Zones 4-8. Pure white bells with a green splotch at the tip of each petal, the so-called "summer snowflake" is actually more of a mid-to-late spring bloomer (depending where you live) and flowering after its L. vernum (spring snowflake) cousin. Taller also than L. vernum, summer snowflake at about 20", is effective planted in generous clumps and in combination with narcissus and tulips. 'Gravetye Giant' (shown) is a particularly good cultivar with larger flowers than the species.
The pure blues of grape hyacinths pair beautifully with the whites, yellows and pinks of daffodils and tulips. Plant these little spring bulbs in drifts for a carpet of color. The foliage can appear as early as late autumn and remains evergreen throughout the winter. In addition to the common blue types, lovely as they are, there is a surprising diversity of species and hybrids to choose from.
Muscari armeniacum, Armenian grape hyacinth, Zones 4-8. A deep cobalt blue, the Armenian grape hyacinth grows about 6" h. Relatively inexpensive, plant these in drifts to naturalize in woodland areas as they multiply easily.
Muscari aucheri 'Mount Hood' a two-tone with blue below capped with white
Muscari aucheri 'Dark Eyes' dark blue with white edge
Muscari aucheri 'Ocean Magic,' has a three-tone effect with dark blue changing to paler blue and finally capped with white
Muscari aucheri 'White Magic,' green buds open to white from the bottom up
Muscari azureum, azure grape hyacinth, Zones 5-8. Pale blue with flowers that open wider than most other grape hyacinths
Muscari botryoides, common grape hyacinth, Zones 2-8. I love these little charmers of pure blue with their tight grape-like clusters of buds that open from the bottom. They are perfect to plant in masses as a blue carpet for taller daffodils to rise above. 'Album' is the white variety.
Muscari comosum 'Plumosum,' the feather or tassel hyacinth, Zones 4-8. Very different is this muscari with its airy plumes of reddish-violet.
Muscari latifolium, two-tone with darker blue below and lighter blue above
Muscari macrocarpum, 'Golden Fragrance' Zones7-9, yellow capped with violet
Muscari 'Pink Sunrise,' a gorgeous pink
Muscari 'Valerie Finnis,' beautiful pale blue
Dispel the gloom of late winter and welcome spring with the brightness and charm of daffodils in shades of pure yellow, white, and soft pinks. There are many varieties and types to choose from to span almost the entire spring season from the earliest eager-to-bloom jonquils to the trumpet hybrids of the main season. Easy to grow and deer-resistant, daffodils are great for naturalizing or adding to beds and borders. Plant these large spring bulbs in the fall in drifts under trees, in a swath in a lawn, in groups in a border, or in containers on the patio. They are classified into 13 divisions depending on their characteristics. Click here for classifications and more examples of gorgeous daffodils! 'Apricot Whirl,' below, is representative of the split-cupped collar type.
Nectarscordum siculum, Sicilian honey garlic or
honey bells, Zones 5-10. This is a
charming spring bulb that sends up tall stalks of about 2-3’ before splitting a
papery sheath to release an umbrella of little purple, green and cream pendant
bells. The foliage is strappy and smells
of garlic when crushed. An allium
relative, they bloom for me at the same time as my ‘Ambassadors’ and A. christophii. Plant in the fall about 3” deep in groups
about 9-12” apart, and they will self-seed where happy.
Ornithogalum umbellatum, Star-of-Bethlehem, Zones 4-9. Star-of-Bethlehem is a mid-to-late spring bloomer that is very easy to establish--so easy in fact that you may find yourself removing unwanted plants that may pop up all over the garden. But as charming as they are with the greenish-white star-shaped flowers rising above their mound of grass-like foliage, you may not mind at all, and simply dig up unwanted clumps to share with friends.
Oxalis regnellii ‘Atropurpurea’, purple oxalis, false shamrock, or wood sorrel, Zones 6-11. The leaves on this clover look-alike are amazing—each triangular leaf is so dark green on the edges as to look almost black and with butterfly-shaped purple blotches in the center. Great as a ground cover in a woodland garden. Worth growing these spring bulbs (actually tubers) for the leaves alone, but the white-to-pinkish flowers are a bonus blooming in spring and sporadically in summer The plants go dormant in winter and excellent drainage is imperative for survival.
Puschkinia scilloides var. libanotica, striped squill, Zones 4-8. This is a delightful late-winter-to-early-spring flowering bulb in the palest icy bluish-white with a darker blue stripe down the center of each petal. Hailing from the Caucasus and Middle East, they resemble squills, hence the name, but are different enough to rate their own genus. At only 4-6" tall, these small bulbs should be planted in clumps to give them more presence. A dark background would show them off well. Try planting them in clumps where you can appreciate them or at the edge of a woodland or in short turf along with Fritillaria meleagris, Iphieon uniflorum, Scilla sibirica, Chionodoxa forbesii, and Muscari botryoides. They like moist conditions during their growing season, and drier undisturbed conditions during their dormant period. Plant them in sun or partial shade about 2-4" deep and 4" apart. They are very hardy and will naturalize freely where happy.
Scilla peruviana, Peruvian squill, Zones 7-10. Peruvian squills are delightful spring bulbs that deserve to be used more widely. Blooming in late spring to early summer, a short stalk rises from a rosette of flattened leaves to about 6-12″ from which a ball of tightly-packed violet-blue flowers opens from the bottom up in a cone to spherical shape. The center looks darker with the unopened buds. This is one spring bulb that can tolerate some shade. Unusual and interestng.
Scilla sibirica, Siberian squill, Zones 2-7. These charming little spring bulbs in a beautiful shade of blue are marvelous to naturalize under spring blooming trees or woodlands where they will multiply and carpet the ground along with clumps of other small bulbs like puschkinias, crocuses, ipheions and glory-of-the-snow, as well as perennials like Virginia bluebells, trilliums, epimediums and bleeding hearts.
Tulips are the classic spring bulbs. There elegant form, beautiful colors, and blooming times make them essentials. Like daffodils, tulips are arranged in divisions based on their characteristics. Please click this link for the tulip classifications and examples. 'Happy Family' (below) is an example of the Single Late class.
Zephyranthes atamasco, Atamasco lily or rain lily, Zones 7-10. Unlike most other zephyr lilies, this one blooms in the spring. Leaves emerge in winter, followed by flowers in spring, especially after a good rain. Pinkish buds unfurl to pure white with a green throat. Native to the southeastern U.S.
Plant of the Month
Stewartia koreana bark