While most gardeners know the usual perennials like lavender and chives, there’s a whole world of lesser-known plants that quietly return year after year. Some are unusual herbs, striking flowers, or under-the-radar vegetables that offer lasting beauty and usefulness.
Here are 12 unique plants I planted once—and they’ve kept coming back every year without fail.
Lovage
This celery-like herb grows tall and lush, returning early each spring. It adds a rich, savory flavor to soups and stews and requires almost no maintenance. If you're looking for a bold, leafy herb that stands out, lovage is a great perennial pick.
Sea Kale
A coastal native with striking blue-green leaves and edible shoots, sea kale is a beautiful and productive perennial. It returns each year with minimal care and thrives in sandy or poor soil. It’s both ornamental and edible—a rare combo.
Sorrel
Sorrel is a tangy, lemony leafy green that shows up early and keeps growing through the season. It’s great in salads, soups, and sauces, and once established, it’s one of the first greens to reappear in spring. A must-try for adventurous eaters.
Turkish Rocket
Don’t let the name fool you—this perennial veggie is a hardy brassica that sends up spicy, edible flower buds in early spring. It’s similar to broccoli rabe and comes back year after year with little attention. Great for permaculture gardens.
Butterfly Weed (Asclepias tuberosa)
This native wildflower brings bright orange blooms and thrives in dry, poor soil. A lesser-known milkweed, it returns every year and supports monarch butterflies and other pollinators. It’s hardy, gorgeous, and a pollinator favorite.
Good King Henry
An old-fashioned green once grown in cottage gardens, Good King Henry is a perennial spinach alternative. It produces tasty, asparagus-like shoots and spinach-like leaves each year. Tough and overlooked, but full of value.
Jerusalem Artichoke (Sunchoke)
This sunflower relative grows tall with cheerful blooms—and underground, it produces edible tubers that return year after year. They spread fast, so plant with care, but they’re a fantastic perennial vegetable for food gardeners.
Wild Bergamot (Monarda fistulosa)
A wilder cousin of bee balm, wild bergamot has pale purple blooms and a minty scent. It’s drought-tolerant, deer-resistant, and comes back each summer to feed bees and hummingbirds. Plus, it makes a lovely tea.
Caucasian Spinach (Hablitzia tamnoides)
This rare vining perennial is a shade-loving green that climbs walls and trellises. It produces tender leaves in early spring that can be cooked like spinach. Hardy and unusual, it's a perennial secret weapon for edible gardeners.
Chinese Artichoke (Crosne)
This quirky plant produces crunchy, spiral-shaped tubers underground and comes back yearly once established. It’s part of the mint family but spreads slowly. The tubers are delicious stir-fried or pickled and add something special to the garden.
Siberian Iris
Unlike their more delicate cousins, Siberian irises are rugged and low-maintenance. They bloom in spring with elegant, colorful flowers and multiply over time. They’re perfect for damp or marginal spots that need a touch of grace.
Anise Hyssop (Agastache foeniculum)
This licorice-scented perennial returns reliably each year and blooms with purple flower spikes that pollinators can’t resist. It thrives in full sun, poor soil, and dry conditions. Bonus: the leaves make a soothing herbal tea.
These uncommon perennials prove that low-maintenance gardening doesn’t have to be predictable. Plant them once, and they’ll surprise you with their flavor, resilience, or beauty year after year. If you’re ready to go beyond the basics, this list is a great place to start.
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