Two beans are grown for beauty, the Hyacinth Bean, edible with precautions, and the Scarlet Runner Bean, also edible.

It’s interesting that these two beans are so unlike the rest of the bean world yet so much alike. Both trail, that is, love to climb. They are showy, one towards purple the other red. They are perennials though are treated as annuals, and have starchy, edible roots. Their young leaves are eaten as well as their beans. Like the Hyacinth Bean the Scarlet Runner Bean also has tasty edible flowers. For the Hyacinth Bean go here.

Botanically in Dead Latin the Scarlet Runner Bean is Phaseolus coccineus (fay-see-OH-lus koh-SIN-ee-us.) That’s the bastardization of two living Greek words that mean “Red Bean” though the seeds are multi-colored. (In Greek it’s:  fah-SO-lee  KOH-kee-no.) The Scarlet Runner Bean has also been called the Oregon Lima Bean, Aycoctl by the Aztecs, and Ayocote by the Spanish. It’s native to Central America and has escaped cultivation in many areas. This bean is still on the home kitchen menu in its original range but the rest of the world grows it as an ornamental. Lots of folks also use it as a nectar attraction for hummingbirds and butterflies. Historically, Scarlet Runner Bean was in English and early American gardens by the 1600s.

Edible Bean-flavored Flowers

There are some dozen and a half cultivars now. (Cultivars are made by man, varieties are made by nature.) The Dutch Phaseolus coccineus v. alba has white flowers. The “Butler” is stringless, “Painted Lady” has red and white flowers, the “Kelvedon Wonder” is an early variety with long pods, “Sunset” has pink flowers, and the “Scarlet Emperor” …has scarlet flowers. Under right conditions the Scarlet Runner Bean is the most productive of all the planted beans.

Scarlet Runner Beans produce many-color seeds

Like most beans the Scarlet Runner Bean contains small amounts of the lectin phytohaemagglutinin (figh-toe-hee-mah-GLUE-tin-inn.) The highest amount is in uncooked red kidney beans. It’s toxic in large amounts which is why kidney beans are always long-cooked. As few as five raw kidney beans can cause symptoms such as losing fluids and feeling lousy for four or five hours. While there are many people who report they eat Scarlet Runner Beans seeds raw it is a good practice to cook them. The young pods before beans truly develop are eaten raw.

I have planted both to climb guy wires near local telephone poles. It’s a win win win as they say. The ugly wire is covered with an attractive vine and blossom, I get to harvest the bean without having to give up any space or create a trellis, and the birds and bees are happy.

 Green Deane’s “Itemized” Plant Profile: Scarlet Runner Bean

IDENTIFICATION: Phaseolus coccineus: Quick-growing vines, typical bean three-leaflet, dark green with purple tinged veins underneath, to 15 feet long/tall, red flowers borne in clusters like sweet peas, slender pods to a foot long. Seeds lima bean shape, color varies from shining black to violet-black mottled with deep red.

TIME OF YEAR: All year in warm climates, seasonally in temperate summer and fall

ENVIRONMENT: Fertile soil, adequate moisture, full sun, preferably something to climb on or it will ball up on the ground. Does better in moderate climates than either very hot or very cold.

METHOD OF PREPARATION: Young tender pods sparingly raw. Usually they are boiled, steamed, sauteed, baked, French-cut (in strips) before cooking; immature seeds used like shelled beans, read cooked; ripe, dried seeds used like dry kidney or Lima beans, long cooked; flowers have a bean-like flavor and are used in salads. Young leaves used as a pot herb, starchy root cooked. It is good food for cattle as well.

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{ 40 comments… read them below or add one }

Just me October 3, 2015 at 12:05

I planted these in my little garden patch at home, along with sunflowers, and did amazing! The runner beans would climb the sunflower, and helped support it for a while. It went crazy. The one plant that did sprout, is as tall as my sunflower or more at 9 feet, and wide as my garden at 10*6. Needed cages outside of garden to keep contained. Once wTered and left for a few hours, the vine gets softer and easily movable or trainable to creep where you want it. I’m picking them for thelima beans inside.


Bob September 25, 2015 at 11:41

I grew the Scarlet beans for the first time. Meant to plant the regular string green bean but misread label. I now have these massive hard beans. Tried steaming but they are woody… Now reading i see i should have harvested when younger. Anyone have a thought on how i can still enjoy these beans? I dont want to toss out…there are tons. Thank you.


Maureen Demar Hall September 26, 2015 at 13:45

My chef friend grew these and said when soft (red shelled bean) they can be added to quick sautéed vegetables, after they turn purple they can be cooked in a full flavored broth for 20 minutes! The pods need to be picked before they get 4″ long, those can be frenched and cooked like green beans…..hope this helps!


Marsha Haller October 5, 2015 at 20:12

If you haven’t already gotten rid of them, don’t. Let the pods get as long as they will, which can be up to 8″ or more. You can let the pods (with the beans inside) dry on the vine, or pick them and let them dry themselves. The beans inside are incredible. They look like nothing else in nature. Bubble gum pink or lavender with splotches of navy blue or black, kind of like a jelly belly.
You can eat the beans while they are fresh, or you can let them become hard. Unless you have enough fresh to cook a meal, its better to let them dry–they lst as long as any dry bean and won’t get moldy while you are trying to collect a cupful.Cook them as you would a kidney bean but don’t stop when they are soft. Let them simmer another hour or two and they develop the most divine, buttery, creamy texture. in case you have not noticed, I am a big fan.


J September 12, 2015 at 21:08

Please advise as I’m new to these. We were out of town & returned to find many pods 5 inches or longer. I’ve just left them & don’t know exactly how or when to harvest. Do they dry in the pods? I know they are past the stage of using them like regular green beans. Thanks.


Ken Hansen September 17, 2015 at 09:16

Hi there,
You can eat the pods that size and longer. We’ve had some much longer and they are still delicious. Best time to pick is when the pods are reasonably flat, in other words the beans haven’t matured much (a little is OK). The more mature the beans become; the more fibrous the pods will be; and with experience you can feel this happening. Once the pods are swollen with maturing beans I leave them on the plant until they turn brown (same color as a paper bag). Then I shell them and allow the seeds to dry for a few days; and I store them in a paper envelope in the refrigerator for next year.


Mo August 8, 2015 at 13:31

Interesting info. I have grown scarLet runner beans for over 50 years and last year tried something different (to me) … When the new vines are about 3 ft / 1 meter tall, I tried nipping the end of the vine off to see what would happen. (I do this with my greenhouse tomatoes)
Well, the result was fantastic! The main vine seemed to keep growing but side shoots came out everywhere and the EIGHT seeds I planted gave us probably five times more beans than we could eat. Gave lots away! I use a “teepee” of poles about 6′ or more above ground and then run strings from the top to other trellises or the greenhouse. This year I only planted ONE seed at each pole. Once again I nipped the vine ends and the poles are lost in the jungle of vines. Loads of beans. Lots of blossoms fall off but we still get a huge crop. When watering I have found the bean plants like a misting – they do great in our damp Vancouver Island climate.
We find the beans get soggy when frozen… Oh well, they are great fresh!


Zoe Ahlstrom August 3, 2015 at 01:45

Is it safe to raw pack scarlet runner beans to can in pressure canner?


Linda Berg July 24, 2015 at 16:14

I also have lots of lovely flowers but they haven’t set fruit. It has been very hot here but I have lots of bees and some hummers. I also water regularly. Any hints?


lbryldy September 8, 2015 at 18:36

Mine did not produce fruit until mid-August, here in central Virginia. I was very surprised since I had given up hope!


Judy Jay July 21, 2015 at 13:58

Thanks for the informative article. I don’t have a lot of sunny space in my yard so I planted two tall containers with two seedlings each so the vines can grow up along my back stairs’ railings. They are vigorous with lots of flowers and baby beans. I’ll try leaving them in the containers over winter to see if they sprout in the spring.


Rosemary June 30, 2015 at 22:01

I too have very vigorous plants with tons of flowers but no fruit :-(


Maria June 25, 2015 at 14:23

I am growing these this year for the first time and they are growing and flowering very well but have not set on any beans. Do I need to do something to get them to set? We have humming birds and bees and they have been flowering for over a month but still nothing. Flowers are very pretty though. We are zone 8B or zone 9 and very hot here currently. I am watering quite often though.


Fish Asante January 25, 2015 at 19:47

Great information, thanks a lot, I am interested in using this in some guerrilla grows. I was reading about the native swamp mallow, and it actually lead me to your article! :)


Searogue August 1, 2014 at 14:28

I live on Vancouver Island, Canada. I first started growing scarlet runner beans over 25 years ago, after a friend gave me some of the seeds. I have never had to buy any further seeds, as these vigorous vine always manage to hide a few pods to ripen amongst the thick foliage. They are one of my most prolific garden plants, providing our family of six with a cornucopian supply throughout the growing season, with lots left for pickling, canning and freezing for use through the winter months…and as a bonus, they attract the hummingbirds and provide us with a shady screen for the patio. Everyone should grow these wonderful legumes, especially when partnered with Jerusalem artichokes as a trellis, and squash at their base.


Anne-Marie August 14, 2014 at 21:42

Hi .. I’ve just started growing Scarlet Red Runner beans and just love them .. why hadn’t I grown them before, anyway! Besides the lovely Anna’s and the huge bees that visit the flowers .. I harvest lots of beans. I live in Victoria, V.I., so our climate is lovely. And I also grew my first Jerusalem artichoke. And I’ll sure save some seeds for next year .. as well as trying to keep the roots to see if they will grow next year!


Nichole August 24, 2014 at 16:08

Hi Anne-Marie, I too started growing this for the first time this year and they are amazingly beautiful. I’m looking for ways to cook them. I’m in Seattle, so our climate is similar. I love the idea of saving the roots to see if they’ll grow next year. Have you done that before? I’d love to try it.


Musliudeen July 30, 2014 at 00:55

Please what are the medicinal and health benefit of this scarlet runner beans? i want to work on them for my research project work.


Green Deane July 30, 2014 at 07:35

I’d like to help but I am not an herbalist.


Ann June 17, 2014 at 23:21

I live on the Florida Panhandle. I like the looks of the scarlet runner beans, and the versatility of their beauty, hummer/butterfly food, and edible seeds. Do you think that they would grow well in our hot, muggy environment?


makahmaiden June 21, 2014 at 04:52

Can you eat the leaves of the runner beans, if so im guessing you would use them in a salad??


Green Deane July 7, 2014 at 16:46

The article says young leaves of the Phaseolus coccineus are boiled and eaten.


lagrasshopper January 27, 2014 at 15:20

The first time I grew scarlet runner beans was last year (2013). The stunning purple bean inside the rough pod were beautiful and delicious. I’m a vegetarian and the big meaty beans were thrown into every recipe I could think of. A favorite was to boil the purple inner beans and use the cooked beans in a Mediterranean style with tomatoes, calamata olives onions… They are delicious and have a wonderful mouth feel. But I would grow them again for the beautiful red flowers dressing up my vege garden alone! I live on the north top of the Olympic Peninsula, Washington.


Dick Wild January 22, 2014 at 22:19

Regarding Michael McCleod’s white fly infestation, in our area early immigrants would add Pepperwood leaves to stored dried plant material to combat insect infestation. California Bay Laurel, aka Pepperwood , (Umbellularia california) is an indigenous plant in forested areas of California, so leaves are easily accessible. Native Americans supposedly camped under Pepperwood trees because the trees’ odor worked as a natural insect repellant. Michael, check out Marin or east Alameda counties for Pepperwood trees or San Mateo County, in the westerly hill area.

Dick Wild


happyplant August 20, 2013 at 15:22



Michael MacLeod September 19, 2013 at 18:32

Yes, you can eat them. The pods have a scratchy habit that goes away after boiling. They take somewhat longer than other beans, and after the beans set and begin to swell the pods get tough and (to me) inedible. But I may just be insufficently hungry.



EK June 24, 2013 at 12:16

is it ok to plant the scarlett runner beans a few feet away from pole beans?


Debbe Mann June 3, 2013 at 13:40

I’m confused! How many can you eat and do they have to be cooked?


cj April 27, 2013 at 18:25

do they keep coming back every year??


Michael MacLeod September 19, 2013 at 18:41

I have planted them for 6 years in the SF Bay Area and about a quarter of the plants winter over. They look dead, but in early Spring they will put out half a dozen shoots, so each sophomore plant has the yield of six seed starts. None have made it to a third season.

By the way, despite their tropical origin, they yield very well and are quite comfortable in Mediterranean climates, even near the ocean. I love them.

They do get whitefly infestations, but they just go on – two flushes a season, about six weeks into their maturity and then a few months later. If you leave the pods on the vines too long they will get infested with a tiny boring weevil that leaves grainy bits on the bottom of stored seed containers and which will multiply rapidly through a jar of seeds. Leave the seeds out to dry, then freeze overnight to stamp out the weevils. This may cause longer sprouting times the next Spring, but I am not certain that this was due to the freezing.


Christina September 25, 2013 at 13:50

Great information, thank you!


Robyn March 24, 2013 at 23:13

Can you tell me if scarlet run plants are ok to feed to cattle?


anasazirose June 12, 2013 at 23:26

It is good food for cattle as well. Last sentence in article above.


Regan February 7, 2013 at 19:33

I have been eating scarlet beans for months and have not had any poisons that effect me but have had a side effect that has improved my diabetes and neuropathy of my feet and fell great. I can walk allot easyer and control my diabeties better having to use less insulin.


john March 14, 2015 at 17:16

Hi. Is this still working out well for you?
I wonder if you have noticed much effect on your diabetes with jerusalem artichoke tubers, since they say we dont digest the sugar in them.


vinny January 5, 2013 at 13:22

any suggestions for keeping voles and chipmunks from eating the roots and stems? have planted 3 years in a row in diffrent locations always with the same end result…rodent food


Green Deane January 6, 2013 at 20:39

Eat the little munchers….


AdAstra47 February 15, 2013 at 08:49

Try using a raised bed. I plant mine in a raised bed about 16″ high, in a traditional Native American “three sisters” configuration with Jerusalem artichokes that act as a trellis for them, and squash growing on the ground underneath. Critters don’t seem to bother them.
However, we also have quite a few feral cats around so that may be another reason the rodents don’t get a chance to make trouble… So you could try spraying the bed with predator pheromones to scare the little critters away, that might help.


Green Deane February 15, 2013 at 11:37

Cats don’t like to walk on chicken wire. Sometimes just laying some down on the ground around the bed works well.


awsome person October 20, 2012 at 21:48

thanks i have a project to do and this helps me know more


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