Plant garbanzo bean seeds in mid-spring when the ground thaws. These plants don't tolerate temperatures under 60 degrees Fahrenheit, and do best at temperatures over 70. Plant the beans as early as possible, to give them at least 100 to 110 days of frost-free growing.
Put the garbanzo beans in sites with full sun all day, quick drainage and good air movement. Beans don't grow to full harvest in shady locations and rot in standing water or still air.
Amend the soil in the planting site for a rich, crumbly and quick-draining foundation. Turn six inches of organic compost into the top 12 inches of soil, and mix the soil well to remove clumps. Throw out any rocks or weeds. Add 5-10-10 fertilizer to the soil at a rate of 1 cup per every 50 feet of row. Garbanzo beans grow best with the right soil resources.
Plant garbanzo bean seeds one-inch inch deep, every three to six inches in a row. Leave 18 to 24 inches between rows.
Water the beans with one inch of water every week until they sprout to avoid bean splitting and failure. Measure the depth of the water seepage with your finger or a Popsicle stick. Use a watering can or spray function on a hose to avoid displacing the beans, and thin the sprouts to every six inches for more growing space. Lay one inch of organic mulch over the soil to keep the beans warm and moist.
Fertilize the plants again with 33-0-0 fertilizer at first bloom, at a rate of 1 cup per 50 feet of row. Mix the fertilizer into the top four inches of soil around each plant, then water. Don't get the fertilizer granules on the plants themselves, to avoid burning them.