The answer to 'when to landscaping' is that the best time to landscape your yard depends on the specific project and your climate. In general, spring and fall are the ideal seasons for most landscaping tasks, as the weather is mild and plants are actively growing.
For planting new trees, shrubs, and perennials, aim for spring or fall when the soil is moist and temperatures are moderate. Summer can be too hot and stressful for new plantings, while winter is often too cold. Lawn seeding and overseeding also do best in the spring or fall. Hardscaping projects like building a patio, retaining wall, or walkway can be done year-round, but the warmer months allow for better curing and setting of materials.