Plant Once, Enjoy for Years! These 9 low-maintenance plants return season after seasonsaving you time and effort. Perfect for gardens and pollinator patches! 1. Walking Onions – Plant themselves by dropping new bulbs. 2. Lavender – Fragrant flowers that grow bigger each year. 3. Chives – Fresh herbs of spring; cut to encourage growth. 4. Echinacea – Beautiful blooms that attract pollinators. 5. Black-eyed Susan – Cheerful yellow flowers that spread naturally. 6. Bee Balm – Attracts beneficial insects with edible flowers. 7. Thyme – Hardy herb that thrives on neglect. 8. Asparagus – Establishes in 2-3 years, producing for 20 years! 9. Rhubarb – Massive stalks for pies, grows larger annually.