Category Archives: In The Greenhouse

Bulbs: Go Formal or Natural In the Garden

Early spring crocuses, delicately scented hyacinths, nodding daffodils and vibrant tulips are favorite flower bulbs for coloring your garden from very early to late spring. But how should you plant them for a great impact and to match the theme of your garden or landscape?

Formal vs. Natural

Clumps of color in a formal planting of hardy spring flowering bulbs is, by far, the most spectacular way to display these beauties. Planting several dozen bulbs in a mass heightens the impact when using one variety and color. Coordinating colors or varieties can be arranged in planned beds for a uniform, luxury look.

The opposite approach is a naturalizing technique where you replicate the look of bulbs growing wild. These bulbs create colorful surprises throughout the yard, often popping up in unexpected places, but they are no less delightful.

Whichever overall design look you choose, planning the garden for a formal, massed look or for a natural appearance will yield spring flowers with minimum care.

Planning Your Bulbs

This fall, before you purchase hardy bulbs, look at areas in your garden that could benefit from color. Note when the bulbs will bloom, and whether they prefer sun or shade. Check the height of the bulb plants and their bloom times. Knowing the facts about the bulbs will help you plant them where they will perform and look best.

Formal Bulb Planting

Because flowering bulbs bloom early in the spring, their clumps of color in a massed planting can fill those gaps in the yard when trees and shrubs are still leaf-barren. By the time the bulbs have brightened these areas, the deciduous trees will begin to leaf. Growing on a bank or at the nearby base of a tree, daffodils in massed planting will give your garden a showy drift of color before summer’s flowers bloom.

Mix hardy spring bulbs with annuals, perennials and biennials for ongoing landscape beauty. Your only maintenance over the seasons is to prune, replant to replace old bulbs and divide occasionally where there is overcrowding. Keep in mind that the smaller the blooms, the greater the number of bulbs you will need to plant. A couple dozen tulips may be fine for a border, but several dozen small snowdrops might be needed in the same border.

When planting a border, place the bulb flowers with long leaves behind perennials. The leaves and flowers of the perennials will grow up and cover the spent yellow foliage of daffodils, tulips, alliums and crown-imperial fritillarias. In border planting, perennials such as phlox, periwinkle and candytuft can be a ground cover for May flowering tulips. Perennial plant leaves from plants like shade-loving hostas can be used as foreground foil in a border planting of tulips that prefer shade (`Triumph’). With a little planning, a border can be an easy care focal point by mixing flowering spring bulbs with other garden flowers.

Formal planting of hardy spring bulbs produces an impressive show of color. Hyacinths and tulips can be a dazzling display in a single-colored massed planting; purple hyacinths and scarlet tulips can be showstoppers too. Parrot tulips, frilled and bold in color, can be carefully paired with the generous blooms of bright cottage tulips. A winning combination is the duo of yellow daffodils or tulips with grape hyacinths.

Keep scale and color in mind when doing formal planting with spring bulbs. Planting similar colors and varieties rather than mixing them is the best approach, though careful experimenting can result in pleasing effects, too.

Planning Naturalized Bulb Landscaping

Naturalizing is a good method of planting hardy spring bulbs like crocus, grape hyacinths and daffodils where drainage is good and where the foliage will not be mowed. To achieve a natural growing look with bulbs, space them by taking a handful and tossing them gently. Simply plant them wherever they land for a ‘growing wild’ effect, avoiding any regular rows or predictable spacing.

Another look in naturalizing with small flowering bulbs is to plant them in a rock garden. Where the soil is unsuitable for larger bulbs, smaller bulbs are ideal. Hardy small bulbs of anemone blanda, snowdrop, kaufmanniana and tarda tulips, Siberian squill, crocus and Iris reticulata are perfect for massed planting in a rock garden.

Your preparations for a colorful spring begin in the fall. Imagine what joy you will realize when your spring garden comes alive with color from those drab brown bulbs.

The Fall Vegetable Garden

Fall is a great time to plant an autumn garden to extend the growing season. Many vegetables such as broccoli or cauliflower are of a higher quality when grown in the fall, while others, like kale, develop better flavor after a frost. Spinach, chard, kale, collards, mustard, and rape all grow rapidly and flourish at the end of the season. Loose-leaf lettuces do well, too. It works best to plant greens in blocks or wide rows, because they’re easier to harvest and you have fewer weeds.

Fresh vegetables don’t have to end as the days grow shorter – fall is a great time to plant an autumn garden to extend the growing season. Many vegetables such as broccoli or cauliflower are of a higher quality when grown in the fall, while others, like kale, develop better flavor after a frost. Spinach, chard, kale, collards, mustard and rapeseed all grow rapidly and flourish at the end of the season, ideal for autumn gardening. Loose-leaf lettuces do well, too.

To prepare your bed, immediately pull out whatever plants have finished producing. Spade or till the soil to a depth of 6-8 inches, rake the area lightly and work in a light application of composted manure or 5-10-5 fertilizer to provide adequate nutrition for rapid-growing fall veggies.

Broadcast a mixture of seeds like mustard, kale and rapeseed, or combine seeds of several types of lettuce like curly leaf, red leaf and oak leaf to allow you to harvest your salad already mixed. It works best to plant greens in blocks or wide rows, because they’re easier to harvest and you’ll have fewer weeds. If you plant blocks each time a new space opens up, you’ll have staggered plantings that can produce over a long time.

Some autumn vegetable varieties will tolerate cold better than others. Read seed packets before you purchase them to determine what will be best in your area, but don’t be put off by such notations as chard’s taking 60 days to mature. The greens are good when they’re younger, too.

Water seeds after sowing and keep the ground evenly moist until the seedlings are up and growing. Seedlings may also need to be sheltered from extreme heat. Protect them by shading them from the sun with Reemay fabric until they are established.

Although insects tend to be less bothersome in late fall, some vegetables in the cabbage family, including mustard, kale and collards, may attract cabbageworms. Apply Bt (Bacillus thuringiensis) sprays for an organic method of control. As the plants begin to fill out, thin them enough to allow air to circulate and dry off moisture. This helps prevent insect problems too.

Harvest your fall vegetables as soon as the plants reach edible size. Even after the first frosts, you’ll be able to keep harvesting to enjoy the yield of your extended-season garden.

Top Fall Vegetables

  • Broccoli
  • Brussels Sprouts
  • Cabbage
  • Cauliflower
  • Swiss Chard
  • Collards
  • Kale
  • Lettuce, Head
  • Lettuce, Leaf
  • Mustard
  • Rape
  • Spinach

Audition Some Autumn Bloomers

Extend the beauty of your garden with vivid autumn-blooming perennials. When you think of fall-blooming plants, don’t stop at mums – there are many perennials that can add color to your yard at this time of year.

Top Autumn Bloomers

While there are different autumn-blooming perennials for different growing zones and climate conditions, some of the most popular and widespread options include…

  • Fall Daisies
    For fall daisies (besides daisy mums!) grow Boltonia or Nippon Daisy. Boltonia is a tall (3-4′) grower, suitable as a background plant. White or pink daisies are borne in profusion atop fine grey-green foliage. The Nippon Daisy (Chrysanthemum nipponicum) is covered with large crisp white daisies in October. Both love lots of sun and make excellent cut flowers.
  • Autumn Sedums
    Bold-foliaged sedums provide texture as well as color in a sunny place. Sedum ‘Autumn Joy’ is the most well known. It has coppery-pink flower heads. Sedums ‘Brilliant’ and ‘Stardust’, with soft pink and white flowers respectively, are also attractive. For a totally different color combination plant sedum ‘Vera Jameson’. It has gray-purple foliage with rose pink blooms and looks stunning when planted with Blue Fescue, Artemesia Silver Mound and other silver-foliaged plants. As an added bonus, all the sedums are attractive to butterflies.
  • Autumn Asters
    Asters are another fall bloomer that butterflies love. These perennials like sun and moist, well-drained soil. There are many colorful aster varieties in shades of pink, purple, blue and white. Some favorites include tall-growing aster ‘Alma Potschke’ with bright pink flowers, blue-flowered aster ‘Professor Kippenburg’ and low-growing aster ‘Purple Dome’ with its deep purple blooms.
  • Autumn Goldenrod
    Sunny yellow goldenrod (Solidago) is another bright addition to the fall garden. Wrongly blamed as the cause of fall allergy problems, goldenrod has rightly taken its place in the fall garden. It looks particularly effective combined with blue flowering plumbago, purple asters and ornamental grasses.

Fall Bloomers for Shade Gardens

Even shade gardeners can enjoy late blooming perennials. Tall growing Japanese Anemones are a stately addition to the perennial garden. Bloom colors range from pure white to various shades of pink, and flowers can be single, semi-double or double blooms. Anemones grow well in light to moderate shade and spread quickly to form large clumps, filling in space vacated by spent summer plants. Turtlehead (Chelone) is another fast spreader for shade. Rose pink flowers cover the tops of the plant from early September to October. For a deeply shaded location, try Toad Lily (Tricyrtis), which has clusters of beautiful cream flowers, spotted with maroon along its upright stems. For light shade, plant Blue Cardinal Flower (Lobelia siphilitica), whose intense blue spikes can be admired from mid-August until frost.

No matter what type of garden you have, the end of summer does not need to mean the end of colorful blooms. Instead, just opt for amazing fall bloomers and enjoy brilliant color even longer!