Absolutely, a "forever green" garden is such a delightful way to keep your outdoor space vibrant throughout the year. I've experimented with a mix of evergreen plants and have found some success with species like rhododendrons and certain types of ferns. These not only stay green but also add layers of texture to the garden. In terms of maintaining interest with seasonal color, I intersperse bulbs like snowdrops or crocuses, which emerge early in the year and provide a stunning contrast to the green backdrop.
One important aspect is choosing plants that are native or well-suited to your particular climate. For instance, in milder areas, camellias are great for winter blooms without losing their foliage. Meanwhile, in colder regions, conifers like junipers or dwarf pines come into their own.
On the maintenance front, regular pruning helps keep your evergreens tidy and encourages denser growth, which is key to maintaining that lush look. Applying an organic mulch can not only help retain moisture but also enhance the soil quality over time.
If you're interested in exploring more, the book "The Layered Garden" by David L. Culp provides some insightful design strategies. What region do you garden in? I'd love to help with more specific plant recommendations!