Catharanthus roseus

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Related to Madagascar periwinkle: Madagascan periwinkle

Catharanthus roseus

[‚kath·ə‚ran·thəs ′rō·zē·əs]
(botany)
The Madagascar periwinkle plant from which the anticancer compounds vinblastine and vincristine are derived.
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Flowers: Cosmos, dahlia, Madagascar periwinkle, million bells, nicotiana, petunia, summer phlox, zinnia.
For sunny spots, choose from cosmos, garden verbena, globe amaranth, Madagascar periwinkle (Catharanthus), marigolds, portulaca, gentian sage, 'Victoria' mealycup sage, scarlet sage, sunflower, and zinnias.
When they start looking ragged, pull them out and replant beds and containers with heat-loving annuals such as gazania, globe amaranth, gloriosa daisy, Madagascar periwinkle, marigold, petunia, portulaca, sunflower, and zinnia.
Zones 7-9, 14-17: Set out sixpacks or 4-inch plants of ageratum, coreopsis, dahlia, gaillardia, globe amaranth, impatiens, lobelia, Madagascar periwinkle (vinca), marigold, nicotiana, penstemon, perennial statice, petunia, phlox, portulaca, salvia, sanvitalia, sunflower, sweet alyssum, torenia, verbena, and zinnia.
For annuals, try garden verbena, globe amaranth, Madagascar periwinkle (vinca), portulaca, scarlet sage, sunflower, and zinnias.
Try ageratum, dwarf dahlia, globe amaranth, impatiens, lobelia, Madagascar periwinkle (vinca), marigold, statice, petunia, phlox, portulaca, salvia, sanvitalia, sunflower, sweet alyssum, verbena, and zinnia.