Some of my strawberry plants needed replacing, they were in their fourth year of fruiting and the yield was much less this year. Throughout summer the plants threw out lots of runners so I potted them up to be the replacements rather than buying new plants. This is how I did it:
- Fill 3in pots with compost
- Select a few runners from the adult strawberry plants, place the largest leafy section of each runner onto the surface of a pot of compost and place a small stone on the runner stem to weight it down
- Leave the pots in place until the leafy section of the runner roots into the compost, usually in a few weeks
Once the baby strawberry plant puts on some growth you can cut the runner stem, basically you are cutting the cord from the parent plant. You can then move the baby strawberries to wherever you like. If you grow your strawberries in a bed you could allow the runners to root themselves straight into the ground, dig them up if you need to move them to a better position. I have already dug up my old strawberry plants and replaced them with the strongest baby plants in a new patch, the smaller runners will overwinter in my mini unheated greenhouse and these will be planted out next spring.