Vigna unguiculata sesquipidalis. Asparagus Bean seeds are also known as yard long beans. This attractive plant is botanically different from regular pole beans and bears the tongue-twisting Latin name Vigna unguiculata sesquipidalis. Purple-red flowers appear on long, trailing vines, followed by fast-growing pods that are meant to be harvested at 60-65cm (24-26″) in length. Even at that amazing size, the beans are just over 1cm (½”) thick, tender, and tasty. These beans feature prominently in Asian recipes, and are most productive in hot weather. Wait until after June 15th to plant the seeds. This is a super-fun crop to grow with kids.
Matures in 55 days. (Open-pollinated seeds)
How to Grow Pole Beans
Many people feel that pole beans have a richer bean flavour than bush beans. The effort of trellising them is more than repaid by the ease of picking and their extended, abundant harvest. Pole beans are a good choice for small gardens because they use vertical space. Follow along with this handy How to Grow Pole Beans Guide and grow food.
We Recommend: Fortex (BN132). If you haven’t tried Fortex, we think you should. The elegant beans are long and narrow, and very tender with fabulous flavour.
For Urban Growers: Matilda (BN134). If your space is limited, grow up! Trellis these tall plants and enjoy lots of straight beans from productive plants.
Season & Zone
Season: Warm Season
Zone: All zones
Direct sow from mid-May to the beginning of July. Try to plant during a warm, dry spell. Soil must be warm – if it is not warm enough, seeds will rot, especially our untreated seeds. Optimal soil temperature: 21-32°C (70-90°F).
Seeds can be started indoors, or sowed directly. Set seeds 7-10cm (3-4″) apart and 3.5cm (1½”) deep at the base of a support. Plants will climb by twining around almost anything. Try rough poles, lumber, re-bar, or build a strong trellis 2-2.5m (6-8′) tall. Seeds will sprout in 8-16 days, depending on soil conditions.
Ideal pH: 6.0-6.5. Well drained, warm soil in full sun is best. Use 1 cup of complete organic fertilizer for every wm (10′) of row. Too much nitrogen fertilizer is often the cause of poor pod set and delayed maturity. If beans flower but do not set pods, the cause can be zinc deficiency. Try spraying the plants with kelp based fertilizer. Wet leaves on crowded plants are subject to diseases. Thin plants to increase air circulation and avoid touching the leaves while they are wet.
Because pole beans are always climbing, there are always beans at different stages of maturity. It is important to keep picking regularly so the plant does not fully mature seeds and stop producing new pods. If pods get fat with seed, the plant will stop flowering. The smaller the bean, the more tender they are.
In optimal conditions a tleast 75% of seeds should germinate. Usual seed life: 3 years. Per 100′ row: 400 seeds. Per acre: 43.5M seeds.
Diseases & Pests
If beans flower but do not set pods, the cause can be a zinc deficiency. Try spraying the plants with Kelpman. Wet leaves on crowded plants are subject to diseases. Thin plants to increase air circulation and try not to touch the plants while they are wet.
Beans fix nitrogen in the soil. Plant with Brassicas, carrots, celery, chard, corn, cucumber, eggplant, peas, potatoes, radish, and strawberries. Avoid planting near chives, garlic, leeks, and onions. Pole beans and beets stunt each other’s growth.
More on Companion Planting.
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