Slow Release Fertilizer Spikes & Indoor Plant Food

This convenient indoor plant food takes the messy guesswork out of your regular feeding routine by delivering pre-measured, slow-release nutrition directly into the root zone. This collection features highly compressed fertilizer spikes designed specifically for tropical houseplants, thriving ferns, and heavy-feeding indoor palms to ensure steady, burn-free growth for months at a time.   Measuring messy liquids and managing complex feeding schedules can be overwhelming for busy plant parents with large botanical collections. By simply inserting this specialized indoor plant food deep into your potting substrate, native soil microbes slowly break down the spike, releasing a continuous, gentle stream of essential plant food exactly when the roots demand it. This set-it-and-forget-it method is the safest fertilizer for plants that are sensitive to sudden nutrient spikes or harsh chemical burns.   Utilize the filters below to shop by specific plant types, package quantities, or trusted household brands. Keep your indoor jungle lush, green, and perfectly fed with absolutely zero hassle.