Mix different crimsons to accentuate the color's many moods, from sultry to fiery hot. The blooms shown here include 'Wanted,' far left, and 'Ignace,' top.

Put pales with saturated hues to make the brights pop; creamy 'Sweetness,' bottom center, provides contrast to 'Mamy Blue,' far right.

Group pastels to show off their contrasting forms, which we've done here with the dense yellow 'Latina,' far left, looser pale-pink 'Secret Garden,' bottom center, and crimped 'Juliet,' bottom right.

To add spark to a yellow cluster, throw in a stem of orange, such as 'Dark Milva' among a handful of 'Carpriccio.'

Enhance the drama of a mixed bouquet with intense colors and blooms in all stages, from budded to full-blown. Vivid oranges and pinks assert themselves, even from a bicolor's dipped edges. This arrangement includes 'Baby Romantica' and dark-pink 'Yves Piaget,' far left, the fully open vivid 'Lolita Lempicka' and pink-and-cream 'Carousel,' center, and orangey 'Circus' and pink-touched white 'Sweetness,' top center.

Orange infuses a spirited collection ranging in color from rusty gold to the shade of a sunset sky. Copper-red Aralia leaves echo the colors of the roses, which include 'Coffee Break,' bottom, 'Farfalla,' center, 'Orangina,' top, and 'Dark Milva,' far right.

A pair of roses can speak volumes about each other. With tightly folded petals evocative of ruffled fabric, the heavenly scented 'Juliet,' left, emphasizes the more delicate appearance of her equally fragrant partner, 'Sweet Perfumella.' The white-edged ivy and the viburnum berries lend a still-life quality to the composition.

The colored foliage draws out the pale pinks and purples and smoky greens in the roses. The group includes 'Ocean Song,' bottom left, 'Marie Romantics,' top right, and 'Amnesia,' center.

When it comes to displaying lush, dome-shaped blooms -- dahlias, garden roses, gardenias, camellias, or the peonies shown here -- less is often more. Float a few big blossoms in a generous-size bowl or single ones in smaller vessels. Cut the stems at a slant, about an inch below the bloom, just before floating in tepid water.

Actually an assemblage of several smaller and more manageable arrangements, this setup offers an easy way to tame a fresh-from-the-garden mix of roses, hydrangeas, delphiniums, lady's mantle, scented geraniums, and potato vine. A pitcher in the center gives height, while kitchen crocks (sugar bowls, eggcups) allow the inclusion of short-stemmed beauties.

Arranging roses is a glorious task, especially when they are homegrown and scented. David Austin roses, left, make a beautiful display combined with ‘Limelight’ licorice plant, tiny lady’s mantle, puffy canary grass, and fuzzy, fragrant geranium leaves.

Even grocery store roses look gorgeous when you snip off the stems and float them in glass votive candleholders, the perfect vessels for solitary blossoms.

In this arrangement, our in-house crafter and stylist Aaron Caramanis used sweet peas, amnesia roses, hyacinths, and ruskas, the perfect combination for a Valentine's Day arrangement any woman would love.

This arrangement from Florisity is composed of pink roses, blush peonies, tulips, paperwhites, gloriosas, lilac, hyacinth, and ranunculus.

We gathered an armful of garden roses in a tight range of soft colors to form this arching dome, set in a 19th-century blown-glass compote. The stems were inserted one by one, steadied by a floral frog at the vase's base.

'Charles de Mills,' 'The Reeve,' and 'Pearlie Mae' roses from Martha's garden were cut close to the bloom, the stems woven together for support in a mercury-glass cup.

This luminous centerpiece is composed of three silver julep cups filled with paperwhites, roses, and star-of-Bethlehem, set atop a cake stand. After the centerpiece has served its purpose, the three elements can be separated and distributed throughout the house; try placing them on nightstands and bathroom shelves.

This arrangement of calla lilies and roses is held in place thanks to a coiled grapevine. The orange of the flowers and the grapevine flower frog makes this the perfect arrangement for autumn.

This oversize urn arrangement includes Kousa dogwood, mock orange, viburnum, mountain laurel, and garden roses.

This low centerpiece features hydrangeas, dusty miller, sea thistle, roses, echinops, astrantia, mountain laurel, clematis, lady's mantle, and blueberries.

Stiff long-stemmed roses can seem as generic as a drugstore valentine. But a few flourishes transform the cliche into a caress. The impromptu charm of a variegated rose (here, white-and-pink 'Henri Matisse') highlights the intensity of its crimson companions. For an informal profusion of blooms, cut the stems short and at staggered lengths. Another good trick (for this and many other arrangements): Let flowers and foliage gently hang over the edge of the container. This eliminates the dividing line between vase and arrangement, resulting in a softer look.

A mixed bouquet is artfully rearranged among a dozen slender vases, freeing each bloom to flaunt its beauty. Much is made of long stems, but trimming them to staggered heights lets individual roses stand out.

We love the mix of fall colors used with the pomegranates, tulips, roses, and leaves in this centerpiece, but this arrangement would be perfect any time of year and can be made with different-colored flowers for spring, summer, or winter.

This seasonal arrangement features crimson roses and dahlias to create a frightening look when covered in creepy cobwebs.