The traditional way to sell business software is to build one enormous system, put everything in it, and sell that same everything to everyone. It is tidy for the vendor and miserable for the buyer. You pay for the whole thing whether you use a tenth of it or all of it, and every screen, menu and field that belongs to someone else's kind of business is still there in yours, cluttering the interface and complicating the training.
For a nursery this is especially painful, because the distance between business types is so wide. A propagation grower lives in production schedules and mother plants; a retail-only shop lives at the till; an online seller lives in dispatch. Sell all three the same monolith and at least two of them are wading through features they will never touch to reach the handful they need.
A better-shaped system is a single modular one that shows you only the parts matching the business you actually run.