Fertilizing plants in urban planter boxes is crucial because nutrients in confined soil deplete quickly. A general rule is to fertilize every 2 to 4 weeks during the active growing season (spring and summer). However, the frequency depends on several factors. Use a balanced, water-soluble fertilizer or a slow-release formula at the season's start. For edible plants like herbs and vegetables, opt for organic options. In fall and winter, reduce or stop fertilizing as most plants' growth slows. Always water thoroughly before and after applying fertilizer to prevent root burn. Observe your plants; yellowing leaves or stunted growth often signal a need for nutrients. Remember, over-fertilizing can harm plants more than under-fertilizing, so when in doubt, follow the product's instructions and err on the side of less.
How often should I fertilize plants growing in URBAN PLANTER BOXES?
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