Berries are a fragile fruit that will only grow outdoors in certain climates. For those living in climates that do not support berry growth, berries can also be successfully grown indoors. While indoor berries will need go outdoors for short periods occasionally, for the most part they can grow and thrive in front of a sunny window. New indoor berry gardeners should start with strawberries, as they are the easiest of all the berries to grow indoors. Strawberries can be planted in early spring for a summer harvest.
Go to a local nursery and select the strawberry plants. Trim off any dead leaves, buds and tangled roots from the plants before planting. Strawberries will grow best when the roots are trimmed to 4 inches in length. Removing the buds will allow the strawberries enough time and energy to root before producing further buds.
Soak the roots in fresh water for two hours before planting to clear away any dead plant tissue.
Line the planting pot with at least 1 inch of sphagnum moss. This will provide the plant with adequate moisture retention and aid in keeping the soil acidic.
Fill the remaining portion of the planting pot with potting soil and dig a hole large enough to allow the plant's roots plus 1/2 inch of stalk to be covered with soil. Be sure to verify that the potting soil you are using as a pH between 5.3 and 6.5. Soil pH is typically listed directly on the bag. Place the plant in the hole and fill in the hole with soil.
Moisten the soil, and keep the soil moist for two weeks, until the plant is established. The best test for soil moisture is to place your finger into the soil. If the soil is dry to a depth of 1 inch, then the plant should be watered.
Place the berry plants in a sunny space where they will receive at least six hours of direct sunlight. If the plants receive any less sunlight, they will not have enough energy to produce fruit.
Fertilize the berry plants once a month, using a balanced fertilizer. Strawberries prefer fertilizers that are high in potassium. Time-released fertilizers are ideal, and can be replaced monthly in the pot. For those looking for an organic option, coffee grounds and Epsom salt are both excellent organic fertilizers. Strawberries should be fertilized monthly while they are developing their leaves and buds and every 10 days when they are producing fruit.
Place the plants outdoors during sunny daytime hours after blooming to encourage natural pollination. Move the plants back indoors in the evenings to keep them at an agreeable climate.