Prepare the growing site in fall by loosening the soil 8 to 10 inches deep.
Scatter the desired number of edible malva seeds over the planting site. Cover them with a 2-inch layer of soil. It is not necessary to water the seeds at this time, as they won't sprout until temperatures warm in spring.
Begin watering the planting site in spring, after average daytime temperatures warm to at least 60 degrees Fahrenheit. Add just enough water to keep the soil lightly moist.
Thin the seedlings when they reach a height of 3 inches. Leave a space of 4 to 6 inches between each plant.
Place 2 inches of organic mulch under the plants when they are 4 inches tall. Keep the mulch a distance of at 3 three inches from the stems because it may lead to disease if heaped against the plants.
Provide supplemental water when the top inch of soil dries out.
Harvest the foliage when it reaches the desired size. Gather the fruits after they have formed completely, but before they begin to dry and turn brown.