Answer: The most commonly grown beans, whether bush or pole, are generally harvested at 4-6 inches long. Exceptionally long beans, like 'asparagus beans' can grow to 18 inches long. Asparagus beans have the same cultural requirements of any beans; provide full sunshine, fertile soil, and water as required. Prepare the planting bed by spreading 3-4 inches of organic material over the top of the soil and digging it in. Use compost, leaf mold, or aged-manure. The organic matter will help retain soil moisture and will release nutrients to the plant's roots as it decomposes. Plant beans 4-6 inches apart in rows. Provide support for pole beans, especially for asparagus beans, as they are vigorous growers. If your plants are spaced properly, there should be enough air circulation between the plants to avoid fungal diseases. Beans are easy to grow!
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