A row of orach can also be used to provide late afternoon shade and block summer winds. Basically, a mini-hedgerow for your garden! Orach also self-seeds very easily, and it may come up the next year in areas you don't expect.

Does arugula reseed?

As the plant grows it may sprout a few flowers; let these grow and die – they will continually reseed the arugula. ... If you don't want to wait for the plant to bolt and go to seed, buy a packet of seeds and continually reseed. This is a fast crop – it grows from seed in under 45 days.

Does Swiss chard reseed itself?

If your winters are mild enough, then Swiss chard will continue to produce through the winter and then generate seeds the following summer. If your winters are too cold, then I'm afraid Swiss chard won't work as a self-seeding vegetable in your garden, since most of the time it won't go to seed during its first year.