07/20/2026
Have you ever grown yard long beans? Despite the name, they rarely reach a full yard—but they can easily grow 18–30 inches long, making them one of the most fascinating vegetables in the garden.
Also known as asparagus beans or Chinese long beans, they’re believed to have originated in Southeast Asia and have been cultivated for centuries throughout China, Thailand, the Philippines, Vietnam, and India. They’re actually a type of cowpea, making them more closely related to black-eyed peas than to green beans.
They thrive in hot summer weather when regular green beans begin to slow down. They’re incredibly productive—just a few plants can provide pounds of beans over the season. The vines can grow 8–12 feet tall, making them perfect for trellises. They attract pollinators with their beautiful flowers before producing long, slender pods.
Yard-long beans are low in calories but packed with nutrition. They provide:
- Fiber for digestive health
- Plant protein
- Vitamin C to support the immune system
- Folate, important for healthy cell growth
- Vitamin K for bone health
- Potassium and iron to support heart health and energy
Unlike ordinary green beans, they’re best picked while still tender. They’re delicious stir-fried, lightly steamed, grilled, or even added to curries. In many Asian households, they’re a summertime staple.
Here at HydroJenn Farms, we’re always excited to grow vegetables that are both productive and nutritious. There’s something satisfying about harvesting beans that are nearly two feet long!
One small historical note: despite the common name “asparagus bean,” they don’t taste like asparagus. The nickname comes from their mild flavor and the way young pods are often cooked similarly to asparagus.
