It is best to sow lettuce or spinach seeds thinly in rows spaced about 1 -1 ½ ft. apart or simply scatter the seeds in blocks. Cover lightly with soil, firm in place and water well. Keep the soil moist until germination. Once the plants have a grown their true leaves, you can begin to thin the plants to about 6" apart.
Start lettuce or spinach indoors or direct seeded in the garden as soon as the soil is workable. Great for container gardens.
Depending on the type of lettuce, harvest outer leaves only or cut down the whole head.
Spinach can be harvested in the cut and come again method of harvesting lettuce. Cut individual leaves, starting with the older, outer leaves, and letting the young inner leaves remain and continue growing for a later harvest. You can also cut down the whole plant, for a larger harvest.
Tip: Soak seeds overnight in water before planting to ensure strong germination.
Plant seeds half an inch deep and 3 inches apart. Set out seedlings 8 inches apart. Indoors or out, thin newly germinated seedlings with cuticle scissors instead of pulling them out. Chard seed capsules often contain two or more seeds. If more than one germinates snip off all but the strongest sprout at the soil line. Gradually thin direct-sown seedlings to 8-12 inches apart.
Harvest individual leaves from the outer area but be sure to leave the crown intact.
Frequent picking helps to stimulate the production of new leaves. Rinse leaves with cool water immediately, shake off the excess moisture, and store in plastic bags in the refrigerator for up to four days.