Use with caution. Vinca is a very popular groundcover and has been around for decades. In my garden, in one place, I have one patch very well behaved under a big tree and surrounded by lawn. In another area, it is creeping under the fence from a neighbor, and very sneakily embeds itself in my shrubs, iris clumps, etc. So it seems bright shade, where you can easily get to all the edges, may keep it better contained, whereas protection of other plants helps it to creep and invade. Once rooted in the base of a shrub, you cannot pull it and it sends runners out every year.
It is listed as a non-native invasive plant of eastern US, according to the invasiveplantatlas.org.

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