Grow High Yields of Beans
All beans prefer a sunny spot in well-drained soil that was improved with compost or well-rotted manure the autumn before sowing.
A clever technique to boost growth is to create a compost trench. Dig out a trench about a foot (30cm) deep where your beans are to grow. Fill it up with kitchen scraps and spent crops, top with leaves then cap it off with soil. By spring the ground will be beautifully rich and moisture-retentive, and your beans will thrive in it.
How to Sow Beans
Sow beans where they are to grow, against their supports or, for bush types, four to six inches (10-15cm) apart with 18 inches (45cm) left between each row. Use a hoe to scratch out rows or dig individual planting holes with a trowel. Drop in two seeds per hole, so they fall about an inch (2cm) apart, and are two inches (5cm) deep. Make the first sowing one week before your last expected frost date, then continue sowing every three or four weeks until midsummer.