The answer to 'when to landscape design' is that the best time to start your landscape design project is typically in the fall or early spring. This allows you to plan and prepare your landscape during the off-season, so you can implement the changes when the weather is ideal for planting and construction.
Fall is a great time to assess your current landscape, identify areas for improvement, and start drafting your design plan. This gives you time to research plants, materials, and contractors before the busy spring season. Early spring is also a good option, as it allows you to finalize your plans and get a head start on the work before the growing season begins.