Jobe's Houseplant Fertilizer Spikes
50 for the normal 25 ct price. Easy to use, specially designed fertilizer spikes for housepaltns. Slow release formula in just the right dose delivered in the rootzone. Easy peasy.
For best results only fertilize when plant is in active growth -- usually late winter, spring and early summer. Use right before watering. About 2 spikes for every 4" of pot diameter.