18 Perennial Veggies You Can Plant Once and Harvest For Years

Loose, fertile
Planting: Plant tubers after frost
Harvest: Dig when foliage dies back
Maintenance: Protect from frost until ready to harvest.

16. Skirret (Sium sisarum)
Lifespan: Many years

Produces clusters of sweet, carrot-like roots.

Growing Tips:

Sunlight: Full sun
Soil: Moist, rich
Planting: Sow seeds in spring or plant root divisions
Harvest: Dig in autumn or winter
Maintenance: Keep soil moist for tender roots.

17. Perennial Leek
Lifespan: Indefinite with replanting of offsets

Looks like regular leeks but regrows from offsets yearly.

Growing Tips:

Sunlight: Full sun
Soil: Rich, well-drained