When to Cut Strawberry Runners Basically, anytime between spring and fall is okay as long as the runners have produced adequate root growth. Strawberry plants usually send out a number of runners, so choosing some for cutting shouldn’t be too difficult. Carefully pull each runner away from the mother plant.Click to see full answer. Likewise, when should I cut my strawberries off? Steps Preserve green, healthy leaves throughout the year. Never prune a healthy, green leaf that is still functional. Prune your strawberry plants after mid- to late February. Mow June-bearing strawberries after the last harvest. Cut June-bearing matted rows using a rototiller after harvest. Subsequently, question is, how do you stop strawberry runners? 6 ways to tackle strawberry runners Clip them off. A few unattended runners are fine, but strawberries send out way too many. Leave a few. If you’ve planted matted rows, allow the runners to fill in between rows without getting too crowded. Thin them out. Give them a trim. Rototill in mulch. Fertilize. Buy new stock. Plant in the spring. Beside above, do strawberry runners produce fruit? Strawberry plants produce several long, leafless stalks called runners. Each runner has a tiny plant at the end. This can be rooted and grown on to produce new plants. In a strawberry plant’s first two years of life, cut off all runners to concentrate the plant’s efforts on fruit production.What is the best fertilizer for strawberries?Bonemeal is a slow-release phosphorus fertilizer ideal for strawberries; it acts faster if steamed prior to application. Dried blood also provides an immediate dose of nitrogen. For potash, the North Carolina State University website recommends mulching strawberries with wood ash.