The easiest way to add some Boho glam to your garden is with lighting. String fairy lights over a a comfy seating area, line pathways and divide areas with lanterns, and add some solar lights to your fence for when you get the barbecue out!
Don't underestimate perennials in making your gardening life easier. Perennials will continue to come back every year and will only require minimal maintenance such as weeding and fertilizing. You'll save time by not having to plant and care for seedlings