You wouldn’t say that about your vegetable garden! Much like your garden, a website is a complicated thing with a lot of dependent moving parts.
It’s a living, interactive representation of you and your business.
That’s not a metaphor. All websites have working parts that depend on other platforms- even if it’s something as simple as the server that hosts your site. Things change more constantly than you know.An unknown change from a plugin might make it vulnerable to hackers or break it. Without regular check-ins you won’t know what you are presenting to the world.