Known for its ease of growth, vinca flowers need only a few vinca plant care  to flourish in garden beds and containers. Proper pruning techniques, as well as regular deadheading, help to keep vinca looking tidy and able to bloom all season long.

Annual vincas thrive in a sunny to partial shade location and are heat- and drought-tolerant. They need well-draining soil, so amend heavy or compacted soil with compost before planting if necessary. Planting a layer of mulch discourages water evaporation and helps maintain soil moisture. Annual vincas also prefer not to be overwatered, and a light application of a general-purpose fertilizer in midsummer is all they need to encourage new growth.

Seeds can be grown from scratch by starting them indoors 12 to 16 weeks before the average last frost date, and germination should occur within seven to 21 days. Better Homes and Gardens advises covering seeds with a light layer of seed-starting formula soil, providing supplemental bottom heat if needed, and slowly exposing seeds to outdoors conditions. Seedlings are ready to transplant when the weather is warming up, and they should be spaced 12-15 inches apart in flowerbeds and in containers.

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Vinca plants tend to become leggy if they are not pruned regularly, especially as flowers fade and the plant starts producing seeds. Using sharp, clean pruning shears or pruning snips to remove overgrown vines and wilting blossoms will help prevent legginess. Renewal pruning is a process of removing about one-third to one-half of the oldest vines in late winter or early spring, and this will encourage new growth.