Tricky question! The best answer is probably late summer, early fall. That may sound extreme but in the world of landscaping, things book up quickly (especially if you're good at what you do!). Materials need to be ordered, plants sourced, crews assembled- it all takes time.
Keep in mind our industry is unusual in that our "season" is purely dictated by the weather- this means we will work as late as we can until the ground freezes and we gamble every spring with the last possible frost date.
If you can get a plan, estimate and installation from a company within a few days you have to ask yourself why... is that company going to even be in business next year? The process of doing things, doing them right and standing behind does take time... and it's well worth it.
