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Why and How to Grow Black Beans

Avatar for David Stillwell David Stillwell  |  Updated: September 1, 2022
Why and How to Grow Black Beans

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The question of why and how to grow black beans is easily answered by looking at what black beans have to offer the human body. If you take one cup of raw black beans, your body intakes 662 calories and 121g of carbs. In that 121g of carbs, there is 29g of fiber and 4g of sugars. 

So, your body gets plenty of energy from a black beans pod. The question of how to grow black beans is answered by continuing to read this article. 

Also Read: Prepper List For Kitchen

Carbs and energy

Carbs convert to sugars which we burn as energy. A candy bar is loaded with sugar – processed sugars – and black beans are loaded with carbs. The deal with processed sugars and some natural sugars is that they burn quickly. You’ve consumed the candy bar and are ready to go, but half an hour later you are lagging. This is because your body has already burned the energy in the candy bar.

With beans you get a slow-burning energy. A cup or black beans is not going to make you zippy, but it will power you through from lunch until dinner. That is a big deal in a survival situation.

Growing Black Beans = Good Energy

This is a topic that we speak about a lot – taking control of your food source. There are many reasons why growing your own food is important. Not only does it help you save money, but it gives you a lot of control over the quality of food that you ear, the food you have available to you, and it can help you improve your health.

Your personal health is a prime factor in surviving a negative situation. You can buy all the fancy prepper foods, but if you cannot out run danger then all that food is not going to matter. Personal health should be on everyone’s top five list of things to improve in the prepping community.

Black beans and other legumes are sources of good energy. Since most people don’t have the space to grow all the different types of beans that they like to eat, you should consider adding some dried beans to your stockpile or if you have space, dry your own beans and shell them out.

Black Bean Nutrition

Black beans are not a significant source of vitamins, but they are a huge sink for minerals. A cup of black beans contains 24 percent of your RDA (Recommended Daily Allowance) of Calcium and a whopping 54 percent of your RDA for Iron – based on a 2,000-calorie diet.

In terms of what we consider healthy foods, black beans are right in the middle of the scale. They are high in calories, low in fat (3 grams per 1 cup) and they offer a whopping 42 grams of protein. The trouble – such as it is – is that two cups of beans per day is 1.324 calories and we tend to want to mix them with other things.

In short, it is really easy to go over your total calorie consumption goal making this a food that can lead to weight gain. If you are trying to lose weight, then be sure to monitor how many servings of black beans you eat per day and pay close attention to both serving size and total calories.

The good news about black beans is that you can spread them around your total consumption for the day. They go well in salads, soups, and sides. They also mix well with other fruits and vegetables. Overall, these are a wonderful food to add to a home garden and they dry well so that you can store them for use all year long.

In fact, they will last 1-2 years in a sealed container in your panty. As a food group, beans help you stretch your other food stores so that you can do more by spending less money.

How to Grow Black Beans

Beans are heat-loving plants and that means the only time to grow them is during the hotter summer months. In fact, the ideal soil temperature is between 70° and 80°F. In comparison, tomato seeds like to sprout when the soil is on average 55°F. The best time to plant black beans is very dependent upon where you live and your local climate.

black beans pod

Where Do Black Beans Come From

Black beans were the staple food of South and Central Americans centuries ago. It’s believed they can be dated as far back as 7,000 years. More recently, Michigan University developed two varieties known as Zenith and Zorro, which have become Michigan’s most commonly planted variants. 

Black beans are now found all over the world, with over 400 common varieties found worldwide. There are more variants with the legume becoming a popular part of cuisines in places like India. It was the Europeans who ignited the worldwide migration of the black bean pod by exporting it back to Europe from the Americas. 

The fact that black beans are easy to plant and grow also contributed to their movement across many countries and regions. If there is enough sunlight, a black bean pod will grow.  

How Do Black Beans Grow  

Black beans go through seed sprouting, seedling, growing plant, flowering, setting fruit, ripening, and harvesting in their life cycle. A black bean pod cannot feed a single person, so you need many harvestable plants for any meaningful consumption.

The splitting and softening of the shell allowing roots to start downward growth and the shoot to grow upwards, is what starts germination. Shortly after the shoot appears above ground level, leaves grow.  

Roughly six to eight weeks after germination, flowers begin to bloom. After fertilization of the flowers, seed pods appear and are harvested for food. The complete growth cycle of black beans takes around 90 to 140 days.

When To Plant Black Beans

Soil that is too cold or too wet promotes rot in black bean seeds. So, it would be best to wait until the risk of any frost is gone before putting black bean seedlings into the ground for planting. The most suitable soil temperature for germination is between 68 and 80°F (20-27°C). Anything under 60°F soil temperature is not worth the risk.

Choose a garden or spot that receives at least six hours of sunlight daily. Black beans thrive in warm temperatures and grow best with at least three months of consistent sunlight. 

A raised bed with well-drained soil will give you the best chance of a successful harvest. Avoid heavy clay soils, as black beans do not grow well there. I recommend turning the soil with an inch of compost before planting. 

Late spring planting is best

To take the fullest advantage of the sun in summer, late spring is the best time to plant them. Warm weather makes black beans flourish. Let your soil temperature be 60 °F (16 °C), at the very least, before planting. Your beans should reach maturity in about 100 days, while 10-14 days is enough for germination.

How Much to Plant?

You can figure that it will take 8 – 12 bean plants to produce enough beans for a single person. If you are planning on growing for consumption, then 12 plants per person is a good goal. If you are planning to grow beans to preserve/dry then plan on about 36 or so plants per person. The extra plants mean that you can use the beans fresh and still have enough to store.

Planting Black Beans

You certainly can start these in a greenhouse or cold frame before the summer heat hits. Most beans transplant okay but you don’t’ want to disturb the roots very much at all. They will also need to be hardened off before planting outdoors just like any other bean..

IMO it is much better to just plant them directly in the ground. If you are in colder climates, cold frames make it much easier to harden off plants as you can just lift the lid during the day and then close them at night.

Adult plants need about 6 inches of space between each other to thrive. If you are planting them by seed, then generally plant each bean two inches apart. You will have to either transplant the extras to make room for the ones you want or thin them. Generally, I wait until they get their second sets of leaves to thin the row. There are plenty of pests that love young bean plants – snails and migratory birds are two such pests.

Planting Black Beans from Seeds

Space, wise, seeds need to be planted about 1.5 inches deep and no more than two inches. Depending on the type of black bean you plant, they can take about 140-150 days before they are ready to harvest. Some varieties take as little as 80 days to reach maturity. Before you plant the beans soak the seed-beans overnight in water. This will help them to rehydrate and then germinate.

Soil for Black Beans

Beans do not tolerate wet, mucky soil. The roots will rot, and the plant will struggle to thrive. They do love compost so plant on amending your garden space with plenty of compost and if needed you can add sand. Bean roots are fragile, and the sand not only helps the soil to drain, but also for the roots to spread outwards.

The compost should be all the moisture retaining material needed but if your soil is very dry or clay, consider adding in perlite. Perlite is an excellent additive as it soaks up water that the plant can use throughout the day.

Garden Design for Beans

Beans like to grow in hills and a hill that is about 1 – 1.5 feet in height is perfect. The added height helps the soil to drain and gives the roots plenty of space to expand. It is easier to manage beans if you grow them in rows (mounded hills) You can do the math to determine how long each row should be – 36 plants will need 18 feet of row space. Eight bean plants will need four feet of row space.

Rows need to be staked to support the bean plants which can range in height from 2-4 feet. Two metal T-posts at the ends of each row with sturdy twin or wire (two-three strands) will help you manage the plants.

The first stand should be about the one-foot mark, the second around 2.5 feet, and the third at 3.5 feet. The taller staking will help with harvesting the beans too. Bean plants are sometimes delicate so be sure to use snippers when picking the beans.

Black Bean Pests & Diseases

Plant rotation in your garden is the best way to counter pests and diseases. Black beans are mostly affected by bean leaf beetles, cutworms, and slugs. The two most common diseases that will disturb your black bean harvest are white mold and blight.         

Bean leaf beetles attack the crop leaving tiny holes in the pods and leaves. Cutworms are a moth species, and they prey on the seedling as it comes out of the soil. Slugs can be picked off by hand when you see them in the garden. 

The two main diseases affecting black beans are both wet and weather-related. White mold is visible on the stems, spreads quickly, and can be devastating. Bacterial blight causes small lesions on leaves before spreading to the pods. 

Weeding Black Beans

While the black bean is aggressive, it is not strong enough to stand against weeds. Yield and harvest can be negatively affected if weeds are not taken care of before they mature.

Weeding requires constant attention and can be done by pulling out the weeds using your hand as soon as you notice any below the plants. Alternatively, you can use a small gardening tool like a miniature fork or spade. 

Always ensure you do not damage the plants when weeding using a garden tool, but do not leave the roots of weeds in the soil. Weeds grow back at a very rapid pace and can easily take over your entire crop.  


Seed beans should be watered every day. They germinate in 8-14 (ish) days and once they have sprouted need to be kept moist but not saturated. When you water beans be sure to only water the ground and not the plant.

Beans grown when they have just the right moisture content in their soil. The trick is to water them just before they wilt. You never want to spray the leaves with water so be gentle in how you water them. The problem with getting their leaves wet is that beans are prone to rust and mildew. Both of which require moisture.

A drip irrigation system works well to water just the roots and not the leaves. You can even add a soil hydrometer which will tell the unit to turn on and off based on soil moisture.

Sun and Light

Beans need full sun, but not tons of it. 5 – 6 hours of full sun per day is all they need. They can handle afternoon shade if they get strong morning sun. They can handle the backlight and UV from a building and often do well against a structure, so long as the structure does not get too hot.

sunlight clouds sun

Black beans are easy to grow. Turtle beans are one of the more popular varieties but there are many options. A good rule of thumb is to choose a bean seed that is suited to your local area. Not all beans thrive in all climates. If you have a shorter growing season, then go with a colder climate short harvest time. If you have a lot of sun and long summers, then choose a bean that grows well in those conditions and that has a longer harvest time.

When To Harvest Black Beans

Black beans are typically ready for harvest when the pods dry up and turn yellow. This usually happens 90 to 140 days after germination. The process is sometimes quickened by planting the black beans indoors and then replanting them outside. 

The time it takes to harvest also depends on the variety, but generally, all types of black beans fall within that 90 to 140-day range. When harvesting, use scissors to cut away the ripe pods from the plant. 

With bush beans, all the ripened pods can be harvested at once. You must continuously check on pole beans as they yield all season long. The best harvest is one that has seen consistent warm weather from germination.   

How To Harvest Black Beans

As I’ve mentioned, you can use scissors to snip a ripened black bean pod from the plant. Otherwise, one free hand can get the job done since the pods will have dried up with a papery sort of feel to them. You just break them open with your thumb. 

It is quite important that you harvest the ripened black beans before mold sets in. There is a belief that you can rinse the mold, but I would rather not take any such risks. Even after harvesting, store the beans in a well-ventilated container to keep that mold away.

Tips For Aspiring Bean Growers

Remember that you don’t just have to grow black beans in your garden. You may want to save some space for green beans, pinto beans, kidney beans, and others. Black beans are a bush bean but as stated before, they need a little bit of support. Pole beans are good to add to your garden because they offer amazing yields. By adding a variety of beans to your garden you can add a lot of variety and nutrition to your diet.

Pinto beans are usually dried and shelled unlike snap beans like Kentucky Wonder Pole or Bush Beans that are typically snapped into pieces and canned or frozen.

In Conclusion 

Growing black beans is a straightforward gardening process. Make sure you wait for the spring sun and always give your black bean pods plenty of sunshine. Space out the crops to get plenty of aeration, and ensure you harvest before the frost hits again.  

Do not let weeds outgrow your plants, as this will reduce the yield and quality of your harvest. Constantly monitor your plants, especially at the point when they’re sprouting out of the ground as diseases attack at this crucial stage. 

In the meantime, dig in and get to planting and we hope that you will consider adding black beans to your garden.

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Here are a few common questions about why and how to grow black beans

What conditions are best suited to the growth of black beans?

Sunlight. Black beans thrive on at least six hours of sunlight daily, which is why it is best to plant them in late spring to take advantage of the sun in summer.

How long does it take for black beans to grow?

Depending on the variety, black beans should be ready to be harvested after 90 to 140 days from germination. The process can be quickened by planting the seeds indoors and then replanting them outdoors.

Where are black beans from?

The original black beans are from the Americas. South and Central Americans ate black beans as part of their staple diet 7,000 years ago. Europeans exported them back to Europe, and they are now found worldwide.

Which pests attack black beans?

The most common black bean pests are bean leaf beetles, cutworms, and slugs. Slugs and cutworms attack newly sprouting seedlings, while bean leaf beetles are noticed by leaving holes in leaves and pods.

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9 Responses to “Why and How to Grow Black Beans”

  1. Great article, we were just digging into our family staple meal of black beans and rice and wondering if we could grow black beans in our yard. We too live in No Cal and have a hilly and sunny back yard, sounds like a go! One question: you said “it will take 8 – 12 bean plants to produce enough beans for a single person”; is that per day, month, season, year? Thanks!

  2. Thanks for the post. “Something for everybody”, indeed! 🙂
    You can plant the black beans dry from your grocery store. “Turtle beans” is what those are called when you buy seed. There are a lot of improved varieties of black bean. It’s worth finding out what is doing well for growers in your area, and with similar soil conditions. //
    You can just buy a pound bag at the grocery stor and plant the first year. Go for it!
    If several varieties do well in your area,plant them all together and save seed.
    You’ll make your own land-race. Storage time depends on temperatures. Lower is better.
    Grow what you can, when and where you can, and use it as much as you can.

  3. Wonder why you limit your choice to black beans? There are so many types of beans that make great tasting green snap beans and once they dry on the vine make great dry shelling beans. Stored in glass jars with tight fitting lids, in a basement or root cellar, they could last for decades. Keep some for seed to replant. In 20 years half will probably still grow. Plant several varieties in your garden to see which ones you like the best and which have the highest yields. Pinto beans are very creamy and make great refried beans and cook quickly. Black beans have a more meaty flavor and retain their firm shape and texture, but take a long time to cook. Cranberry, red, orca, tiger eye, myacoba, brown cattle, red silk are just a few varieties. Also consider bush beans that don’t need trellising or pole beans that need some fairly tall support. If you’re limited on garden space consider that pole beans could be grown on twine that run from the eaves of the house to the ground and can be planted in front of windows to provide shade and cool your house in the summer. Beans can be grown in a lot of places, not just straight rows in the vegetable garden.

  4. Years ago I used to receive a news letter from a farm group. There was always a note at the end that read:

    We strive to put something for everyone in our news letter. Since some people need to nitpick to feel superior, we have placed a few misspelled words in there for them.

    • This reminds me of how sometimes I will have people email me on a Saturday morning to point out a very small grammar error. Now, these are folks that are trying to prepare for a disaster. I always have to think about how this type will fare during a real emergency if a single comma out of place bothers them that much. To top it off, the emails complaining about small grammar errors are often full of them! Then there is the issue of dialect. If writers all have the same style and dialect then it is very boring. I live in the South and I am very used to people from other parts of the USA feeling like they need to tell me how to speak. The people that I went to college with that were the worst to correct others did not become professional writers. A lot of the complainers became English teachers. Go figure. Thanks for reading Backdoor Survival.

  5. This was a great post, but y’all need a proofreader….

    “In fact, they will last 1-2 years in a sealed container in your panty.” Got a good chuckle out of that one!

    “They do love compost so plant on amending your garden space with plenty of compost and if needed you can add sand.”

    • “…plant on amending your garden space….” ?
      Plant on, or plan on?
      Proofreader CC

  6. I let mine dry right on the vine for storage. That gives me more time for all the crops that need my attention. As the picture shows, they are much easier to shell when dry. You might want to write down a good black bean soup recipe.

  7. In my neighborhood, white-tail deer are also a major threat to bean plants at any stage of growth. The plants can be protected with lightweight plastic mesh “deer netting”, but it’s important and challenging to keep the plants from growing through the net. Once that happens, it’s hard to remove the net to reach the beans for your own harvest.

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