Planting, Growing, and Harvesting Green Beans
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Planting
Beans grow best in well-draining soil with normal fertility and an acidic to neutral pH (6.0–7.0). They don’t typically need supplemental fertilizer because they fix their own nitrogen in the soil. However, particularly poor soil should still be amended with aged manure or compost in the fall prior to planting (or about a week before planting in the spring).
Beans don’t like having their roots disturbed, so set up any supports for pole beans prior to planting.
When to Plant Beans
- Beans grow best when direct-seeded outdoors. Sow any time after the last spring frost date, when the soil has warmed to at least 55°F (12°C). Don’t plant too early, as cold, moist soil will delay germination and could cause the seeds to rot.
- Tip: To get a head start on planting, place black plastic or landscaping fabric over your garden beds to warm the soil prior to sowing seeds.
- Do not start green bean seeds indoors. Due to their fragile roots, they may not survive transplanting. Plus, they’re such fast growers that there’s no real advantage to starting them early indoors.
How to Plant Beans
- Sow bush beans 1 inch deep and 2 inches apart in rows 18 inches apart.
- Sow pole beans 1 inch deep, placing them around supports.
- Tip: Plant pole and bush beans a little deeper in sandy soils, but not too deep. Seedlings cannot push through soil that is too deep, heavy, dense, packed, and/or mulched; they will break their “necks” in trying to emerge.
- For pole beans, set up trellises, stakes, or other supports prior to planting so that the plants’ fragile roots are not disturbed.
- One option is to create a teepee: Tie three or four (or more) 7-foot-long bamboo poles or long, straight branches together at the top and splay the legs in a circle. Then, plant three or four seeds around each pole. As vines appear, train them to wind up the poles. For more stability, wrap string/wire around the poles about halfway up, encircling the tepee; this gives the vines something to grab.
- Another easy support for them is a “cattle panel”—a portable section of wire fence—16 feet long and 5 feet tall. The beans will climb with ease, and you won’t have to get into contorted positions to pick them.
- For a continued harvest that lasts all summer, sow seeds every 2 weeks. If you’re going to be away and unable to harvest, skip a planting. Beans do not wait for anyone!
- Practice crop rotation (planting crops in different areas each year) to avoid the buildup of pests and diseases in one spot.
How to Grow Beans From Planting to Harvest
Growing
- Mulch soil around bean plants to retain moisture; make sure that it is well-draining. Beans have shallow roots, so mulch keeps them cool.
- Water regularly, about 2 inches per square foot per week. If you do not keep beans well watered, they will stop flowering. Water on sunny days so that foliage will not remain soaked, which could encourage disease.
- If necessary, begin fertilizing after heavy bloom and the set of pods. Avoid using high-nitrogen fertilizer, or you will get lush foliage and few beans. A side dressing of compost or aged manure halfway through the growing season is a good alternative to liquid fertilizer.
- Weed diligently but carefully to avoid disturbing the beans’ roots.
- Pinch off the tops of pole bean vines when they reach the top of the support. This will force them to put energy into producing more pods instead.
- In high heat, use row covers over young plants; hot weather can cause blossoms to drop from plants, reducing the harvest.
Growing Green Beans in Containers
You can also grow green beans in containers! An 8-inch-deep, 8-inch-wide container will hold one bush plant, while a 5-gallon pot will hold up to three bush or pole plants. For pole beans, plan to provide support in or immediately outside of the container. Fill the container with potting mix and rich compost.
Beans grow best when direct-seeded (not transplanted) into the soil, whether it’s in a container or the ground. After all danger of frost has passed, sow into warm (55°F or higher), moist soil. Put two beans into each hole between 1 and 1-1/2 inches deep. Eliminate the weaker one after germination by cutting the stem. (Do not allow two plants to coexist in one hole; neither will thrive.)
To care for your container of green beans, provide 6 to 8 hours of sun per day. Whenever the soil is dry, water to a depth of 1 to 2 inches. Fertilize with a low-nitrogen formula (5-10-10) diluted to half-strength to avoid excess foliage growth. Apply at planting time and when plants begin to flower.
Catherine Boeckmann
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i had a successful harvest on my beans thanks to you thank you!
Congratulations, Jacob! So nice of you to let us know. Just sayin, though … we never got any of the harvest!
Seriously—it was, and is, all YOU. You’re the one taking the time, tending the plants, watering, watching, weeding, spreading all the TLC. So happy to hear that you had a successful season, and we wish you an even better one this coming year. (It’s almost time for the seed catalogs to come out!)
Cheers!
how long till my flowers turn into beans?
It’s usually a few days to a week that you would see bean pods develop where the flower appeared.
I grow scarlet runners and let some dry on the vine to plant the inner seed/bean next year but I recently read that all raw beans inside the mature pods are poisonous if not cooked.. Is this true?
Thanks.
It is not wise to eat scarlet runner beans raw. If well cooked, they—and you—should be fine. Saving a few pods, with beans inside, to plant next year should cause you no health problems.
How long dose it take for wax beans to grow and be ready to pick?
i like to cultivate akara beans
It takes about 60 days for wax beans to mature.
how to tell if someone is stealing your green beans ? what will the vine look like ?
