How to Germinate Blueberry Seeds
Blueberry seeds require many of the same types of environmental conditions as other plants to germinate successfully. Having just the right temperature and water levels can make or break a successful germination, or sprouting of seeds prior to planting. Blueberry seeds are particularly picky about the conditions needed for germination. Because they are very small, for example, blueberry seeds need ample amounts of light.
Place the planter box on a table or other flat surface.
Line the bottom of the planter evenly with about 1 inch of finely ground sphagnum moss. Spray the moss with a spray bottle filled with water until the moss is moist, but not soaking wet.
Sprinkle the blueberry seeds evenly on top of the moss. Spread the seeds with your fingers so there are about 10 seeds per square inch.
Cover the seeds with a very fine layer of moss, just until the seeds are covered. It’s important to give the seeds access to light to spark the germination process.
Spray the top of the moss with the water bottle until moist. Place the container in a room where the temperature is regulated at between 60 and 70 degrees Fahrenheit. It is not important to place the container in direct sunlight at this point, but it should receive at least partial sunlight.
Check to make sure the moss is moist every day, and spray with the water bottle to keep the moss moist.
Place the planter in direct sun once the seeds begin to sprout, which takes about one month on average. Continue to keep the moss moist until the sprouts are about 3 inches tall. Once the seeds reach that height, it is safe to plant them in soil.
- Colorado State University Extension: How Does a Blueberry Seed Know When to Germinate?
- University of Main Cooperative Extension: Growing Blueberries From Seed
- Don’t oversaturate the planter.
- Most seeds, including blueberry seeds, require a period of four to 12 weeks of cold storage prior to germination.
- Blueberries will grow in U.S. Department of Agriculture zones 3 through 10, but they do require at least 100 chill hours during the winter to set fruit — most require much more. If you live in a warmer USDA zone, make sure that the variety you select is suitable for your conditions.
- Do not allow germinating seeds to be exposed to temperatures lower than 60 degrees, or the plants may die.
Heath Roberts has worked as a professional reporter for several Colorado newspapers. He has covered breaking news and features for the “Denver Post” and other local publications. Roberts holds Bachelor of Arts degrees in both journalism and political science.
How to Germinate Blueberry Seeds. Blueberry seeds require many of the same types of environmental conditions as other plants to germinate successfully. Having just the right temperature and water levels can make or break a successful germination, or sprouting of seeds prior to planting. Blueberry seeds are …