Burdock

Herbaceous

Burdock

Arctium lappa

Also known as: Greater burdock, Gobo (Japanese culinary)

HerbaceousRoot Asteraceae EdibleMedicinalDynamic AccumulatorAnimal Fodder
Hardiness Zone
3-9
Ideal Temp
45–80°F
Survives Down To
-30°F
Life Cycle
Annual

Burdock is the biennial bur machine that invented velcro shade—first-year rosette of huge leaves, second-year tower of thistle-ish flowers, taproot fat enough for pickles if you get year one right. Grows as a cool-season biennial; summer heat can push bolting—start early or provide afternoon shade for lush roots. Sun and water: Full sun to light shade. Deep, loose soil for straight roots; steady moisture prevents woody, forked gobo tragedy. ✂️ Propagation: Direct-sow fresh seed; thin hard; avoid transplanting deep taproot types unless very young.

Good Neighbors
  • Dill
  • Fennel
  • Yarrow
Cautions
  • Rocky compacted soil (forked roots and frustration)
  • Letting second-year plants seed into neighbor socks
Known Threats — Organic Solutions Only
Aphids
Aphidoidea
Banded Winged Whitefly
Trialeurodes abutiloneus
Greenhouse Whitefly
Trialeurodes vaporariorum
Lettuce Aphid
Nasonovia ribisnigri
Lubber Grasshopper
Romalea microptera
Powdery Mildew
Erysiphales
Root Aphid
Pemphigus spp.
Root Rot
Various (e.g., Pythium spp., Phytophthora spp., Rhizoctonia spp., Fusarium spp.)