How to Grow Green Beans in Your Garden

Green beans (Phaseolus vulgaris) are one of the most rewarding crops for home vegetable gardens: they germinate quickly, grow fast, produce heavily, and remain productive for weeks when harvested regularly. Two distinct growth habits offer different practical advantages, and choosing the right type for your space and goals makes a meaningful difference in the experience of growing them.

Bush Beans vs Pole Beans

Bush beans grow as compact, self-supporting plants that reach 40 to 60 centimeters tall. They produce their full harvest over a concentrated two to three week period and then decline. Bush beans are ideal for succession sowing: plant a small batch every two weeks through the summer to maintain a continuous supply.

Pole beans grow as climbing vines reaching 2 to 3 meters, requiring a trellis, teepee of canes, or other vertical support. They begin producing later than bush beans but continue for a longer period, producing beans across the full summer if harvested regularly. Pole beans are more space-efficient in small gardens because they grow vertically, and they are often more flavorful than bush types.

Planting

Sow green beans directly outdoors after the last frost date when soil temperature is consistently above 15 degrees Celsius. Cold soil causes slow germination and rot. In a warm season, germination occurs in 7 to 14 days.

Sow bush beans at 8 to 10 centimeters apart in rows 45 centimeters apart. Sow pole beans at 20 to 25 centimeters apart at the base of their support structure.

Watering and Care

Green beans need consistent moisture, particularly during flowering and pod development. Irregular watering during this period causes pods to be stringy or hollow. Do not apply high-nitrogen fertilizer: as legumes, green beans fix their own nitrogen, and excess nitrogen pushes leafy growth at the expense of pod production.

Harvesting

Harvest regularly once pods reach the usable size for your variety, before the seeds inside begin to swell noticeably. Leaving pods on the plant to mature triggers the plant to slow new pod production. Pick every two to three days during peak season.