Phasing the installation of your plan over several years is one of the best ways to stretch your budget and get all the elements you want in a landscape, but only if you have a well thought out master plan. Phasing will create a more natural look with plants at different ages instead of having all the trees the same size. When you know where your final destination is for everything, you can do all the subterranean work early and prevent tearing up past installations as you work on the next phase. Finally, phasing allows some flexibility. As you use the areas you finish, perhaps you decide you want to adjust aspects of the plan to work better. You can still change your mind about parts of it. Just work with your designer ahead of time to see if they can consult later phases in the case of needing changes. The main drawback of this idea is that plants and materials will continue to inflate in price over time. But that’s life these days, so it is not really a reason to give up doing everything you want to if you don’t have the budget to do it all at once. Look for good deals and sales and plan interim phases to grow those plants now and transplant them again later when possible and applicable. Your designer can help you with that also.