Growing Green Beans in the Home Garden
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Collapse ▲Green Beans or Bush Beans (Phaseolus vulgaris), are a warm season vegetable in the Fabacea family. They are native to the tropical regions of the Americas. They were domesticated in the pre-Columbian times, and hundreds of cultivars have been selected and bred over the years.
Beans prefer full sun (6-8 hours of sunlight) and fertile, well-drained soils. Most green beans we grow are a bush type. There are climbing and trailing types (pole beans) as well. You can plant the seed or a small transplant. Most often when seeded, plant seed 3-4 inches apart and 3/4 -1 inch deep. A general rule is 175 seeds can plant up to 30 feet of row. From seed it generally takes 70 days to harvest.
When fertilizing it is best to base your fertility program on a soil sample. If no soil sample is available apply 10 lbs of 10-10-10 fertilizer per 1,000 square feet before planting. If side dressing with fertilizer, a rate of 1.50 pounds of 10-10-10 can be broadcast every 25 feet of row. Supplemental side-dressing of fertilizer is recommended when blooms are visible.

Freshly harvested green beans (contributed photo).
Green Beans can be harvested 3-4 times per season based on weather and water. You can generally plant two crops per year. The first planting should be done right after the last frost date in the spring, and the second planting can be done in August for a late crop. You can also do successional planting and plant a new crop every 2 weeks.
Some of the common varieties you can find seed for are: Blue Lake, Tenderette, Jade, Kentucky Wonder and Kentucky Blue. You can find seeds for green beans of different color and you also have the option of the flat Roma bush bean. I encourage you to be creative when shopping for seed to try new types of green beans.
When harvesting pick regularly to encourage new pod set. Store at 40 degrees F and 90% relative humidity for up to 7-10 days.
For more information about growing green beans, or if you have other gardening questions, feel free to contact the Franklin County Cooperative Extension Office at 919-496-3344, or visit our website. Stay tuned for nutritional information about green beans in the next Growing in Franklin article.