How to Grow String Beans From Seed


String beans provide a low-maintenance plant for gardeners and large quantities of beans throughout the growing season. To start healthy plants, grow beans from seed after the last spring frost. Select a sunny location with well-draining soil, and soak the beans before planting to speed up germination.

Step 1

Prepare the garden bed in a spot that receives at least 6 hours of direct sunlight a day, has well-draining soil and is easy to access for frequent harvests and care.

Step 2

Dig the soil 6 to 8 inches deep, breaking up large clumps of dirt to make room for growing roots. Add 3 inches of compost or garden soil of the bed to improve the soil, especially if the soil is mostly clay or sand.

Step 3

Set up a trellis in the bed if the seeds are a pole variety. Anchor the trellis into the ground well so that it can support the weight of the bean plants as they grow and develop.

Step 4

Fill a small bowl with 1 inch of water. Place the bean seeds in the water six to eight hours before planting to hasten germination.

Step 5

Form a 2-inch trench for each row of bean plants using a trowel. If using a trellis, the trench needs to run parallel to the trellis. Each row should be 2 to 3 feet apart.

Step 6

Place the string bean seeds in the trench, with bush varieties spaced 2 inches apart and pole varieties set 4 to 6 inches apart. Cover over the seeds by gently moving the soil with your hand to close the trench.

Step 7

Water regularly once or twice a week to keep the soil moist. Water more deeply the bigger the plants get. Pull weeds as you see them to keep competition to a minimum.

Step 8

Help your pole variety vines to find the trellis, if necessary. Guide the vines to the trellis by hand to give them a directional assist and keep them from becoming tangled with other vines.

Tips and Warnings

  • Don't plant the bean seeds too close together or you could invite disease and decrease yield.

Things You'll Need

  • Shovel
  • Compost or garden soil
  • Trellis, if necessary
  • String bean seeds, pole or bush variety
  • Hand trowel


  • "Vegetable Gardening: Your Ultimate Guide"; Robert J. Dolezal; 2000
Keywords: grow string beans, string beans seeds, starting beans

About this Author

Margaret Telsch-Williams is a freelance, fiction, and poetry writer from the Blue Ridge mountains. When not writing articles for Demand Studios, she works for as a contributor and podcast co-host.