I don't believe 'Landscapers' has a basis in reality. Usually, such shows are fictional constructs that combine imagination and creative storytelling to engage the audience.
Hard to say exactly. It could be about the challenges and successes of landscapers in bringing nature and design together. Maybe it involves dealing with different client requests and difficult terrains.
I have no definite answer for you. 'Landscapers' might be based on a relatively obscure or not publicly disclosed true story. It's possible that the creators took creative liberties and combined different elements to form the basis of the show.