If you don't have a large budget to work with, a small outdoor space can actually be a blessing. From rock paths and walkways to wildflower beds to manicured plants that you start tending when they are young, there are many things you can do in the garden for less money.
Free and Cheap Stone Paths
Make a stone path for free by finding slabs of concrete at construction sites. Since the smaller slabs are likely waste, if you ask, they might allow you to take what you need. Look for flat pieces. If doesn't matter if the sides are irregular. Indeed, that adds to the beauty of the path. If you prefer a pebble path, seek out a quarry in your area. Quarries often sell their scrap stones for a very good price.
Buy smaller, cheaper plants and give them time to mature. If you buy more developed plants, you're going to spend more money. For flowers in particular, you can find a good deal without having to bother with any seeds. As the plants mature and become too large for your small-scale landscape, you can transfer them to other spaces.
If you want an inexpensive way to add flowers to your small space, skip the manicured flowers and try wildflowers. Just scatter a variety of seeds that have a fair success rate such as baby's breath, yellow cosmos, wine cups, California bluebells and rocket larkspurs.