Hopniss

Vine

Hopniss

Apios americana

Also known as: American groundnut, Potato bean

VineRoot Fabaceae EdibleNitrogen FixerWildlife Attractor
Hardiness Zone
3-9
Ideal Temp
45–88°F
Survives Down To
-35°F
Life Cycle
Perennial

Hopniss is the native legume vine that grows underground tubers like a survivalist pantry — strings of starchy nodules, pink pea flowers, and a climbing habit that wants sun for beans but shade for soil moisture politeness. subtropical and tropical Americas: fine in 8b/9a riparian edges with structure to climb. ☀️💧 Sun and Water Requirements: - Full sun for flowering and tuber yield if roots stay moist. - Rich, moist, loamy soil wins; drought makes small tubers and grudges. - Provide trellis, shrubs, or corn — classic Three Sisters teammate. ✂️ Methods to Propagate: - Tubers: plant chain segments in spring like potato eyes with ambition. - Seeds: scarify; slower than tubers but expands genetics.

Good Neighbors
  • Corn
  • Beans
  • Sunflower
Cautions
  • Bone-dry sand without irrigation or mulch
  • Letting vines smother young fruit trees without pruning diplomacy
Known Threats — Organic Solutions Only
Aphids
Aphidoidea
Banded Cucumber Beetle
Diabrotica balteata
Bean Aphid
Aphis fabae
Bean Leaf Beetle
Cerotoma trifurcata
Bean Weevil
Acanthoscelides obtectus
Brown Marmorated Stink Bug
Halyomorpha halys
Corn Earworm
Helicoverpa zea
Cowpea Curculio
Chalcodermus aeneus
Fall Armyworm
Spodoptera frugiperda
Fusarium Wilt
Fusarium oxysporum
Ganoderma Butt Rot
Ganoderma spp.
Harlequin Ladybird
Harmonia axyridis
Japanese Beetles
Popillia japonica
Kudzu Bug
Megacopta cribraria
Locust Borer
Megacyllene robiniae
Locust Leaf Miner
Odontota dorsalis
Lubber Grasshopper
Romalea microptera
Pea Moth
Cydia nigricana
Pea Weevil
Bruchus pisorum
Pythium Root Rot
Pythium spp.
Reniform Nematode
Rotylenchulus reniformis
Root Aphid
Pemphigus spp.
Rootknot Nematodes
Meloidogyne spp.
Soybean Looper
Chrysodeixis includens
Spittlebugs
Cercopidae
Spotted Cucumber Beetle
Diabrotica undecimpunctata howardi
Stink Bug
Pentatomidae
Striped Cucumber Beetle
Acalymma vittatum
Velvetbean Caterpillar
Anticarsia gemmatalis
White Rot
Sclerotinia sclerotiorum