Is fertilizer already in your potting soil enough to feed your plants all season? In this episode of The Compost Pile, we break down one of the most common gardening myths: relying solely on pre-fertilized soil to sustain your plants long term.

We discuss the difference between compost-based soils and synthetic time-release fertilizers like Osmocote 14-14-14, how temperature and sunlight affect fertilizer breakdown, and why container plants lose nutrients faster than raised beds or in-ground gardens. You’ll also learn how nitrogen deficiency shows up, why heavy feeders like tomatoes, peppers, and cucumbers need extra nutrition, and how soil microbes play a critical role in long-term plant health.

If you’ve ever wondered:

• Do I need extra fertilizer if my soil already has some?

• How long does fertilizer really last in  ...