You can grow your own raspberry plant from seed.

How to Cold Stratify Raspberry Seeds

by Melissa Lewis

Raspberries (Rubus spp.) make excellent garden fruits in U.S. Department of Agriculture plant hardiness zones 2 through 7. Often planted as young plants, they do not produce their fruit until the second year. If you collected your own raspberry seeds, they need a period of cold stratification to break dormancy. This naturally occurs outdoors if you plant the seeds in the garden in fall or winter. If you want to start raspberry seeds indoors, you must simulate the cold stratification process before planting.

1 Moisten a handful of sand, vermiculite, peat or another type of medium. Squeeze the medium with your hands and dump out any excess water. It should be moist, not saturated.

2 Take a portion of the moist medium and an volume of raspberry seeds and mix them together in a zip-top plastic bag. Seal the bag and place it in the refrigerator that is set to 37 to 40 degrees Fahrenheit.

3 Check on the seeds once a week to ensure the medium and the seeds are still moist. Add water, if necessary, and squeeze out any excess so it is not overly wet.

4 Remove seeds in after days, or if they begin to sprout. The raspberry seeds are now ready to plant.

Items you will need

  • Sand, vermiculite or peat
  • Zip-top plastic bag

About the Author

I love writing and write children's stories on the side, but have yet to be published. Before staying at home with my children, I was a media specialist for five years in which one of my duties was to assist students and teachers in researching information and then evaluating the reliability of the source. I am also a radio script writer for the non-profit organization, Christian Walk Alive, and write four episodes a year. In addition, I edit the episodes of the other writers. I am a homeschool mom to four wonderful children.

Photo Credits

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