Growing Adzuki

Obtain adzuki seeds from a commercial seed provider with the desired characteristics. This plant grows readily from seed and has many varieties.

Ensure you are in United States Department of Agriculture Hardiness Zone 4 or higher, meaning that the annual temperature does not drop below -30 degrees Fahrenheit. The ideal growing temperature for adzuki is between 50 and 80 degrees Fahrenheit.

Wait until the last expected frost of the year. The soil temperature must also rise above 60 degrees before planting adzuki. You can plant adzuki seeds until the temperature rises above 90 degrees Fahrenheit.

Plant the adzuki seeds in your garden at a depth of 1 inch. Space the seeds 3 to 4 inches apart, and make the rows 18 to 36 inches apart.

Water the seeds early in the morning with 1 inch of water per week during the growing season. Keep the soil evenly moist, but keep the foliage as dry as possible. The seedlings should emerge within two weeks.

Fertilize adzuki beans with garden compost. Avoid nitrogen fertilizers as this will encourage foliage production rather than seed production. Rotate the adzuki plants every three years to avoid depleting the soil of nutrients.

Harvest the adzuki beans in about two months if you wish to eat them as a green bean. They require up to four months of growth if you wish to eat them as a dried bean. Seed pod production begins to falter when the temperature rises above 80 degrees Fahrenheit.