Save $20: Right now, Amazon has the Lego Botanicals Mini Bonsai Trees set down to just $45, which saves you $20 off the regular retail price of $65. Not only do you get a trio of delightful bonsai trees to build, you get the relaxation and joy that comes from totally spacing out and building a Lego set.

This 709-piece Lego set has everything you need to build three bonsai trees that are just the right size for your desk or windowsill. You’ll build three mini trees in different seasonal stages: an autumnal ginkgo tree, a wisteria in full spring bloom and a rugged black pine, rich with green needles. Each tree has its own traditional cobalt blue bonsai pot — the set even includes two stands so you can display them with varying heights.

The trees themselves are just around seven inches high, so they won’t take up too much space when you display them. Whether you spend hours or days assembling them, with or without the kids, this set will bring peace of mind as you puzzle out the delicate-looking collection.

Studies show that solving puzzles can help slow cognitive decline, too, so you’ll get a big ol’ brain boost for your investment. Not to mention these would make a great back-to-school gift for any teacher or student.

Alternatives you may like

There are a few other Lego sets on sale right now, though few are as steeply discounted as this charming set. If you’re in a botanical mood, check out the Lego Botanicals Tiny Plants set. It’s down to $40 from the regular price of $50, saving you $10. You’ll get nine mini plants in their pots to build, and you’ll never have to water them.

The Lego Botanicals Succulents set is 30% off right now, dropping the price from $50 to $35. That saves you $15 on a set of nine different succulents, just waiting for you to admire.