Sow fenugreek seeds outdoors in the spring after the last frost, when minimum temperatures are above 45 degrees Fahrenheit. Choose a sunny spot with rich but well-drained soil with a pH between 5.3 and 8.2. Do not sow fenugreek in seed trays or small pots as the plants can hard to transplant.
Bury the seeds about one-quarter of an inch deep with 4 inches between seeds. Sow fresh seed every three weeks to maintain a constant supply of salad leaves throughout the summer. Young plants can be harvested for salad use once they are two inches high.
Water fenugreek plants as soon as the soil starts to dry out, especially during hot weather. Do not allow them to become waterlogged, especially in cool weather.
Allow fenugreek seed pods, which follow the white flowers in late summer, to ripen on the plant until they are yellow. Harvest the pods and allow them to dry thoroughly in the sun. Reserve some seed for sowing the following year.