Growing strawberries from seed is a fun and easy way to start your own crop of strawberries in a relatively short time. Keep in mind though, the majority of strawberries found in supermarkets are hybrid varieties and will not grow true from seed.
Place approximately 1 cup of fresh strawberries in a household blender. Pour in 1 cup of water and use the mix button to agitate the strawberries and water for no more than about 20 seconds. The viable strawberry seeds will sink, those left floating should be discarded.
Pour out the excess liquid to leave strawberry seeds at the bottom of the carafe. Place two paper towels into the bottom of a fine wire mess colander. Use a spoon, or a knife, to scoop or scrape the strawberry seeds out from the bottom of the carafe. Place the strawberry seeds into the paper-towel lined colander.
Remove any leftover sticky resided or pulp from the strawberry seeds. To do this, rinse off the strawberry seeds carefully using a slow stream of water. Place the rinsed strawberry seeds out onto paper towel and allow them to dry for about one day.
Scoop seed starting mix into planting packs until the cells in the packs are full of soil to about 1/4 inch from the top. Compress the soil in the cells until it is well firmed down. Soak the seed raising mix in the planting packs with enough water until it is well saturated. Allow the planting packs to fully drain before proceeding.
Place the strawberry seeds onto the surface of the seed raising mix in each of the planting cells. Plant two or three strawberry seeds per individual cell. Press the strawberry seeds into the seed-raising mix using the blunt end of a pencil, the back side of a spoon or your fingertip.
Sprinkle 1/8 to 1/4 of an inch of the seed-raising mix over the strawberry seeds. Then place the planting packs in a environment that will offer light and warmth. A good temperature range is 65 to 75 degrees F. And eight to 10 hours if indirect light a day is ideal.
Keep the soil in the planting packs moist by misting with water as needed. Germination of strawberry seeds usually begins in three weeks. Once the strawberry seedlings have a set of leaves, thin them down. Snip off at the soil line all but the most hardy strawberry seedling to leave one seedling per cell.