9 Crops You Plant Exactly Once

From sun-chokes to good king henry. The forgotten edibles that yield for 30+ years with zero tilling, no fertilizer, and almost no water.

The Perennial Advantage

Annual gardening is a treadmill. Every spring: till, amend, plant, weed, water, harvest, repeat. Perennial food plants break that cycle entirely.

The Nine

1. Jerusalem Artichoke (Helianthus tuberosus) — yields 2-4 kg per plant, spreads readily
2. Good King Henry (Chenopodium bonus-henricus) — the original "spinach" of Northern Europe
3. Welsh Onion (Allium fistulosum) — never-ending scallions
4. Sorrel (Rumex acetosa) — sharp, lemony greens from March to November
5. Asparagus (Asparagus officinalis) — 20+ year productive life from one planting
6. Rhubarb (Rheum rhabarbarum) — virtually indestructible, yields for decades
7. Sea Kale (Crambe maritima) — blanched shoots rival asparagus
8. Turkish Rocket (Bunias orientalis) — broccoli-like florets without the fuss
9. Daubenton's Kale (Brassica oleracea var. ramosa) — perennial kale, propagates from cuttings