Longevity spinach is a perennial in USDA Zones 9-11 and grown as an annual in climates with chilly winters. It lends itself to container-growing and can be grown indoors during the winter.

For containers, fill them with nutrient-rich potting mix. Plant the spinach seeds directly into the soil or container. Space the seeds about 1 inch apart, planting them at a depth of 1/2 inch.

Spinach is also a heavy feeder and therefore requires complete fertilisation at planting followed by side dressing after two weeks. Apply the fertiliser 4 inches from the base of the plants to ...