While many home gardeners buy strawberry plants from nurseries, sowing strawberries from seeds can be an economical alternative. Seeds for strawberry varieties like Alpine, Fresca and Sarain can be bought from online retailers. Strawberries do best in sandy soil but can grow in most soils. They should be watered about twice a week and need about six hours of sun a day. Start the strawberry seeds indoors in February and plant the seedlings outdoors in March or April. Most strawberry varieties will bear fruit in May and June.
Cold treat the strawberry seeds. Put them in a tightly sealed plastic bag or jar and put them in the freezer for two to four weeks. Cold treating seeds, process also known as stratification, allows them to experience a dormant winter period. The end of this period helps signal the proper time for the seed to germinate.
Take the strawberry seeds out of the freezer and allow them to come to room temperature.
Prepare the planting tray for the strawberry seeds. Use a shallow tray that is only a few inches deep. It should have drainage holes in the bottom. Add a few inches of potting mix to the tray.
Plant the strawberry seeds. Lightly sprinkle them over top of the soil in the planting tray. Barely cover the seeds with a 1/4 inch of soil.
Water the strawberry seeds gently. Keep the soil moist. The seeds should emerge in two to three weeks.
Transplant the strawberry plants outdoors when they have at least three sets of leaves.
Covering the planting tray lightly with plastic can help keep the soil moist.