Let me introduce you to the crowned jewel of my summer garden: Scarlet Emperor Runner Beans. If you’ve never grown them, you’re in for a treat. If you have, then you probably already know why I beam with pride when I spot those fiery red blooms climbing sky-high on my trellis.

As an avid food gardener, I’ve experimented with everything from dragon-tongue beans to purple-podded curiosities. But year after year, one bean earns its throne: the majestic Scarlet Emperor Runner Bean. Sure, the name sounds like a Renaissance fair character, but don’t be fooled—this plant is more than just a pretty face. It’s a hardy, productive, pollinator-loving superstar that thrives in containers, raised beds, or tucked neatly into your backyard veggie patch.

A Noble Origin: From the Highlands to Your Garden Fence

The story of the Scarlet Emperor Runner Bean begins in the misty highlands of Central America. The species Phaseolus coccineus—the botanical name if you’re feeling fancy—has been cultivated for centuries by indigenous farmers who knew a good thing when they saw it. These weren’t your average green beans. Runner beans are climbers, reaching for the sky like overcaffeinated pole dancers, and they bring bold beauty with their showy scarlet blossoms.

Fast-forward to England in the 1600s, where the beans arrived as ornamentals. Yes, the British thought they were just “pretty red flowers” for their gardens. It took a few bites (and maybe a few British teeth to gnaw through the pods) before they realized: Hey, these beans are delicious, especially when picked young.

Now? The Scarlet Emperor Runner Bean has found a loyal fanbase among U.S. home gardeners who love a productive plant with flair—and who don’t mind explaining to neighbors that no, those vibrant flowers aren’t from the annuals section.

The Pros and Cons of Ruling Your Garden with Scarlet Emperor Beans

Pros:

• Gorgeous Blooms: Your trellis will look like it’s going to a summer wedding.
• Pollinator Magnet: Bees, butterflies, and hummingbirds will practically throw a parade.
• Flavor Bomb: Young pods are tender and sweet; mature beans are starchy and hearty.
• Vertical Gardening Hero: Great for small gardens with big dreams.
• Cooler Weather Friendly: More tolerant of chill than typical bush beans.

Cons:

• Thirsty Royals: Scarlet Emperors like their drink. Keep them watered!
• Stringy When Old: Harvest early unless you’re building rope.
• They’re Vines: You’ll need space—or a strong trellis—or possibly both.
• You’ll Want More: One season with these, and you’ll double your planting next year.

Your Majestic Garden Plan: How to Grow Scarlet Emperor Runner Beans Like a Pro

Selecting Your Seeds:

Look for certified Scarlet Emperor Runner Bean seeds—preferably organic. Avoid the “mystery bean mix” at the bottom of your gardening drawer. You want purity here, not a surprise lima bean invasion.

Where to Plant:

These beans are gloriously adaptable:

• Containers: Use a deep container (at least 12–14 inches) with a sturdy trellis.
• Raised Beds: Perfect for a vertical garden showpiece.
• In-Ground: Plant near a fence, teepee, or garden arch for climbing support.

When & How to Plant:

• Timing: Wait until soil temps hit 60°F+. These beans love warm feet.
• Spacing: Sow seeds 2 inches apart, 1.5 inches deep. Thin to 6–8 inches apart.
• Support: Give them something to climb immediately—bamboo poles, cattle panel arches, or even that rusty tomato cage from last year. (Hey, upcycling!)

Growing Tips:

• Water regularly, especially once flowers set. Lack of water = bean drama.
• Mulch to keep roots cool and moist.
• Feed lightly with compost or bean-friendly fertilizer. These beans fix nitrogen—they’re givers!

Harvesting:

• Young Pods: Pick when 6–8 inches long and still tender. Steam, sauté, or snack raw.
• Mature Beans: Let the pods dry, then shell the big, beautiful purple-mottled beans for soups and stews.

Culinary Royalty: How to Eat Scarlet Emperor Runner Beans

These beans are a versatile treat. Here’s where they shine:

• Fresh & Young: Blanched and tossed in a lemony butter sauce, or added to stir-fries.
• Grilled: Lightly charred on the grill with olive oil and garlic—chef’s kiss.
• Stews & Soups: Use shelled mature beans in place of kidney beans for added color and creamy texture.
• Bean Salads: The shelled beans hold their shape well and soak up dressing like a dream.
• Casseroles: Add a splash of color and protein to veggie bakes.

Pro tip: Try pickling the young pods! They keep that vibrant color and add snap to any charcuterie board.

Long Live the Emperor!

Whether you’re growing in a patio pot, a raised bed palace, or your suburban soil kingdom, Scarlet Emperor Runner Beans are an absolute joy. Their noble heritage, productivity, and beauty make them one of my favorite food garden additions—and they just might become yours, too.

Curious to learn more about growing, harvesting, and eating the best green beans around?

Check out our complete guide to green beans and runner beans—with tips, recipes, and tricks to help you garden like royalty.