Answer: Here are several considerations to keep in mind. Any healthy groundcover will naturally spread so you need to be prepared to contain it if necessary. After all, if it didn't spread well it wouldn't be an effective groundcover. Groundcovers need to have a well prepared planting area and regular watering and fertilizing until they are well established; this can take several years depending on the growing conditions and the plants involved. Your selection is going to depend somewhat on the soil type and microclimate as well. If you know your soil is hard and dry, amend it with organic matter prior to planting. Having said that, there are the old standby plants: ivy (Hedera helix) for almost anywhere, creeping myrtle or vinca minor for part shade to shade, and pachysandra for part shade to shade. These are all evergreen but only the vinca blooms in a noticeable way. For a sunny location creeping junipers (nonblooming) are very popular, as are the flowering creeping phlox and creeping thyme.
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