Goathead Weed Overruns Southwestern Lawns with Spiky Menace
An invasive weed called goathead, or puncturevine, is causing headaches for gardeners and homeowners across the southwestern US. Known for its sharp, spiky fruits, this plant spreads quickly and damages lawns, shoes, and even tyres.
Goathead (Tribulus terrestris) thrives in arid and semi-arid regions, including Arizona, California, Nevada, New Mexico, and Texas. It grows best in warm, dry conditions and often outcompetes native plants in disturbed areas. The weed emerges in late spring and spreads into a dense mat, covering 2 to 5 feet by the time frost arrives.
The plant features low-growing vines with fern-like, pinnately compound leaves. Each leaf has five to eight pairs of small, hairy leaflets arranged opposite one another. In summer, bright yellow flowers with five petals appear, later forming hard fruits that split into five spiky nutlets resembling a goat’s head. These sharp thorns pose risks to people and pets, puncturing skin, paws, and even bicycle tyres. The weed also chokes out grass and other plants by forming thick, ground-level mats. Removal is difficult but necessary—pulling by hand or using a hoe works best if done before seeds develop. Preventing growth involves keeping soil healthy, maintaining dense turf, and applying pre-emergent herbicides to block seed germination.
Goatheads remain a persistent problem in dry, warm climates. Their rapid spread and sharp fruits make them a nuisance for property owners. Effective control requires early removal and ongoing prevention to protect lawns and outdoor spaces.
Read also:
- GM’s Charlotte warehouse gets a high-tech overhaul for faster, safer operations
- Battersea Bridge to undergo 11-month safety overhaul for pedestrians and cyclists
- Hidden Exploitation Uncovered in UK’s Growing Nail Bar Industry
- Ian Lindo Honored as 2025 Military Child of the Year for Leadership and Service
