Bean Seeds - Pole - Kurosanjaku Yard Long
Shop this brand >> from Kitazawa Seed Company
70-90 Days to maturity. Vigna unguiculata subsp. sesquipedalis. Kurosanjaku Yard Long Bean Seeds. Non-GMO, annual, open-pollinated, heat-tolerant, heirloom, pole, snap, Asian, specialty bean. Suitable for growing in containers, garden plots, raised beds, and greenhouses. This fast-growing, high-yield bean thrives in the heat. It is a black-seeded variety and is one of the most popular types grown. These extra-long dark green stringless beans are highly prized for their sweet and crunchy pods. Traditionally interplanted with arugula and bitter melon vines for increased pest resistance, faster growth, and efficient use of space. ~180 seeds/oz.
Customers Also Bought
Starting at
Download Free Vegetable Growing Guide PDF (opens in a new tab) 
Growing Kurosanjaku Yard Long Beans in the Vegetable Garden
Germinate seeds on a moist paper towel before planting. Kurosanjaku Bean seeds are direct sown in soil of at least 60 F where there is no risk of frost. Grow in a warm, sunny spot. Sow indoors 2-3 weeks before outdoor planting for an earlier harvest. Be sure to harden off well if indoor sowing. Young seedlings do not tolerate shock. If you live in a warm climate plant seeds every 3-4 weeks for multiple harvests. Keep soil moist in the early days. Yard Long Beans are generally low maintenance.
Once the seeds have sprouted and the plants begin to establish, setting up a sturdy trellis or support system is essential. Kurosanjaku Yard Long Beans are vigorous climbers, reaching heights of 8-10 feet, so they will require a tall and robust structure. A vertical trellis helps keep the vines off the ground, improving air circulation and reducing the risk of fungal infections, especially in humid conditions. Keep the soil consistently moist, watering deeply at the base of the plant to encourage strong root growth. It’s best to water in the morning to allow any surface moisture to evaporate during the day, further reducing disease risks. While these beans don’t need much nitrogen (due to their nitrogen-fixing nature), a balanced fertilizer with added phosphorus and potassium can enhance their growth and yield.
Harvesting Kurosanjaku Yard Long Beans
Harvest when pods are smooth, tender and 14-18 inches long; usually in midsummer. Pods, seeds, stems, and leaves are all edible! It’s important to harvest them before they become tough or overly mature. Use scissors or a sharp knife to cut the pods from the vine to avoid damaging the plant, as rough pulling can disrupt the growth of additional pods. With regular harvesting, the plant will continue to produce, providing a consistent supply of fresh beans throughout the season.
About Kurosanjaku Yard Long Bean Garden Seeds
Yard Long Beans may replace string beans in most culinary scenarios. Pods can be deep-fried, stir-fried, steamed, or used in soups. Their thin size makes them cook quite rapidly. Traditionally used in Szechuan recipes, prepare the pods by cutting them into 2-inch sections. Lightly steam the leaves and stems, then toss with olive oil for a nutritious side.
Originating from tropical regions in Asia, these beans have been cultivated for centuries, particularly in China, Thailand, and the Philippines, where they are integral to local cuisines.
Tips From Our Gardeners
“In my opinion, nothing is more satisfying than that familiar crunch you get from green beans after a long day’s harvest. Kurosanjaku yard-long beans are among the most well-loved varieties for this reason.”
Other Resources
Kurosanjaku Yard Long Bean Seeds Per Package:
- 5 g - Wholesale - Approximately 32 Seeds
- 4 oz - Wholesale - Approximately 720 Seeds
- 1 lb - Bulk Seeds - Approximately 2,880 Seeds
- 5 lb - Bulk Seeds - Approximately 14,400 Seeds
Non-GMO Kurosanjaku Yard Long Bean seeds are available for Fast Free Shipping (opens in a new tab) on qualifying orders.
Basic Info
| Property | Details |
|---|---|
| Latin Name: | Vigna unguiculata subsp. sesquipedalis |
| Kurosanjaku Yard Long Bean Color: | Green |
| Kurosanjaku Yard Long Bean Flavor: | Mild, sweet, earthy and nutty. |
Growing Info
| Property | Details |
|---|---|
| Hardiness Zone: | 3, 4, 5, 6, 7, 8, 9, 10, 11 Annual Crop: Not Intended to Overwinter |
| Days to Maturity: | 70-90 |
| Days to Germination: | 5-10 |
| Seeding Depth: | 1 inch |
| Plant Spacing: | 4-6 inches |
| Row Spacing: | 24 inches |
| Plant Height: | 60-108 inches |
| Growth Habit: | Vining |
| Soil Preference: | Beans prefer well-draining, nutrient-rich, loamy soil with a pH of 6.0-6.8. As light feeders and nitrogen-fixing legumes, beans do not require nitrogen-heavy fertilizers. |
| Temperature Preference: | Warmer (70-85 F). |
| Germination Temperature: | 70-90 F |
| Light Preference: | Full Sun |
Other Info
| Property | Details |
|---|---|
| Direct Sow: | Yes, direct sow when soil temperatures are reliably above 60 F. Planting with an inoculant may increase yields, but is certainly not required for a successful grow. |
| Start Indoors: | Not Recommended. Beans grow best without any root disturbance. We recommend direct sowing instead of transplanting. |
| Bean Pollination: | Beans are self-pollinating as they contain both the male and female parts within their flowers, unlike other fruit and vegetable plants. While they are self-pollinating, having a variety of pollinators and flowers around will improve yields by ensuring the greatest chances for pollinating events to occur. |
| Snap or Shell Bean: | Snap - Snap beans have a fleshy edible pod. Snap beans are also commonly referred to as string beans or green beans (though not all snap beans are green). They are called snap beans because they make a snapping sound when you break them in half. |
| Pole or Bush Bean: | Pole - Pole beans are vining-type plants that put out runners that grow very long or tall. Pole beans are so-called because they require a trellis, support, or wait for it… a pole. Pole beans require more effort than bush beans but may also be grown in containers with the right support. |
| Bean Sub-Type: | Asian - Asian beans encompass a wide spectrum of bean varieties, either originating from Asia or being especially popular in Asian cultures. Specialty - There are many subcategories of beans, and in the interest of simplifying what would be an overwhelming number of bean varieties, we group them as 'specialty'. These include but are not limited to yardlong beans, winged beans, hyacinth beans, sword beans, asparagus beans, adzuki, mung, garbanzo, and others. |
| Plant Width: | 12-18 inches |
| Growth Speed: | Late - Ready for harvest around 86 days or more. |
| Deer Resistant: | No |
| Pests and Diseases: | Beans are susceptible to beetles, aphids, spider mites, and cutworms. Look for signs of chewing, curling leaves, eggs on the undersides of leaves, and leaf discoloration. Keeping your bean plants clean from dust build-up and surrounded by a variety of plants to help deter and prevent pest damage. Beans are also susceptible to powdery mildew, bean blight, rust, and root rot. Maintain a regular watering schedule that avoids overly saturated soil. The roots need adequate time to air out between watering. This will also help prevent common fungal and bacterial diseases from developing. Good air circulation and applying water to the ground rather than the leaves will help maintain healthy bean plant growth. |
| Garden Size: | Greenhouse, Garden Plot, Raised Bed, Container |
| Bean Use: | The Kurosanjaku Yard Long Bean is used in stir-fries, soups, stews, salads, and as a crunchy side dish. It has a great flavor on it’s own but takes on other seasonings well too. |
| Climate Tolerance: | Heat-Tolerant |
Our Recommended Picks
Similar to Bean Seeds - Pole - Kurosanjaku Yard Long
Starting at
