The spinach plant is an annual vegetable. When growing spinach, sow the seeds as soon as the soil in the garden can be worked in spring, up to 6 weeks before the last frost, when the soil temperature is at least 45 degrees Fahrenheit.
Alternatively, sow them in late summer 6 to 8 weeks before the first autumn frost.
Where can spinach grow? Spinach grows most rapidly in full sun and fertile, well-draining soil with a pH between 6 and 7, especially in spring in a raised bed that dries out quickly.
However, spinach is a vegetable that can also grow in light shade. Peas, beans, and radishes make good spinach companion plants.
How do you plant spinach? Although it’s best to plant spinach early, wait until the soil dries out enough to be crumbly rather than sticky.
Sow spinach seeds directly into the garden, planting them ¼ to ½ inch deep, using about 12 to 15 seeds per foot of row.
After the seeds sprout in 7 to 10 days and grow to 2 inches, thin the seedlings to stand at least 3 to 6 inches apart in rows at least 1 foot apart. Plant new seeds about every 2 weeks until the weather warms.