Strawberry production in the home garden throughout the state of Idaho benefits from planting in a raised garden bed because the nutrient content can be controlled through soil additions and amendments. A raised bed has better water drainage and the soil warms quickly in spring to allow for an early start on the growing season. Plant the June-bearing strawberry varieties in Idaho, as they are more adapted to the northern climate and produce one crop of berries in early summer in the second growing season. Transplant strawberries using the same process as planting new stock.
Select a planting location that has full sunlight and a raised bed to prevent problems with soil erosion and drainage, which is common in the hilly areas of Idaho. Build a raised bed out of landscape timbers that is 8 feet long, 4 feet wide and 8 inches high.
Fill the raised planting bed two-thirds of the way with a high quality topsoil. Add a 3- to 4-inch layer of organic compost to the bed and work it into the topsoil.
Test the soil pH to verify it is slightly acidic at 6.0 to 6.8. Add ground rock sulfur to the planting bed to lower the soil pH, if needed. Water the soil well after adding the amendment to assist with absorption. Let the soil rest for two weeks before planting strawberries.
Apply ground rock sulfur based on the manufacturer's instructions, as the amount needed to lower soil pH will vary depending on the soil composition and starting soil pH. Apply no more than 9 lbs. of ground rock sulfur for every 100 square feet of garden space.
Add a starter fertilizer with a ratio of 10-5-10 and work it to a depth of 6 inches. Build planting mounds that are 8 inches high and 12 inches wide. Create the mounds as long rows or individual plant mounds.
Dig a hole for the strawberry plant that's deep and wide enough for the roots to spread. Set the strawberry plants into hole, making sure the crown is above the soil level. Gently spread the roots and cover them with soil. Space the plants 18 inches apart.
Apply a 2- to 3-inch layer of straw mulch around the strawberries to keep the berries off the soil, prevent weed growth and assist with moisture retention.
Water the strawberries to a depth of 6 inches immediately after planting. Water the plants at ground level with a soaker hose instead of spraying the foliage. Do not over-water or allow standing water around the plants as this creates an environment for root rot.
Transplant the young strawberry plants in Idaho during the fall season after harvest is complete. Dig them from their growing location, making sure to remove most of the root structure. Plant the strawberries following Steps 1 through 7.