Elephant Grass

Herbaceous

Elephant Grass

Pennisetum purpureum

Also known as: Napier Grass, Uganda Grass, Giant King Grass

Herbaceous Poaceae Animal FodderErosion ControlWindbreakerBiofuel
Hardiness Zone
8-11
Ideal Temp
77–104°F
Survives Down To
50°F
Life Cycle
Perennial

Elephant Grass (*Pennisetum purpureum*) is a robust perennial grass native to tropical and sub-Saharan Africa. It forms dense clumps with tall, bamboo-like stems that can reach heights of 2–3.5 meters, and in some cases up to 7.5 meters. The leaves are long, slender, and mid-green, measuring up to 120 cm in length with a prominent whitish central vein. The plant produces large, bristly flower heads that are typically yellow-brown, though they can also appear greenish or purplish. 🌞💧 Sun and Water Requirements: Elephant Grass thrives in full sun and requires moderate water once established. It is drought-tolerant and can grow in poor, dry soils, making it suitable for a variety of landscapes. ✂️🫘 Methods to Propagate: Propagation is primarily through stem cuttings or division, as seed production is inconsistent. Cuttings from mature stems can be planted directly into the soil during the growing season. 🧑‍🌾👩‍🌾 When to Harvest: For use as animal fodder, harvest the grass when it reaches about 1–1.5 meters in height to ensure optimal nutritional value. Regular harvesting promotes new growth and maintains the plant's palatability.

Good Neighbors
  • Pigeon Pea — fixes nitrogen at the row edge; cut-and-come-again legume biomass between elephant grass harvests.
  • Cowpea — summer legume intercrop or rotation partner that tolerates heat when grass is cut back for fodder.
  • Leucaena — managed fodder-tree strips alongside grass for ruminant systems; match species to local invasiveness guidance and animal tolerance.
Cautions
  • None specified
Known Threats — Organic Solutions Only
Aphids
Aphidoidea
Armyworms
Spodoptera spp.
Bamboo Mite
Schizotetranychus longus
Borers
Various (e.g., Cerambycidae, Sesiidae)
Corn Earworm
Helicoverpa zea
Fall Armyworm
Spodoptera frugiperda
Leaf Blight
Various Fungal Pathogens
Lubber Grasshopper
Romalea microptera
Rice Blast Fungus
Magnaporthe oryzae
Rice Water Weevil
Lissorhoptrus oryzophilus
Root Rot
Various (e.g., Pythium spp., Phytophthora spp., Rhizoctonia spp., Fusarium spp.)
Spittlebugs
Cercopidae
Wireworm
Elateridae (larvae; e.g., Agriotes spp.)