Trim the flowers off of June-bearing plants the first year. Do not let them fruit. You will be rewarded with well-rooted, large plants that produce lots of fruit the following year.
Prune June-bearing strawberry plants after harvesting in early to mid-summer, using a lawn mower set to approximately 1-1/2 to 2 inches high. Rake and remove the debris. The plants are now ready for fertilizer and water, and the areas between the rows are ready to be rototilled and weeded. For smaller planting, use a sickle or pruning shears to trim back the plants 1 inch above their crowns.
Trim the flowers off of everbearing and day-neutral strawberries until the end of June the first year of planting. Then allow them to flower and produce fruit. In subsequent years, you do not need to remove the flowers. Mowing plants after harvesting is also not necessary.