6. 🥕 Vegetable Scraps (Compost)
Why: Full-range nutrients for long-term health.
How to Use: Compost kitchen scraps (carrot peels, lettuce ends, etc.) until fully broken down. Mix ½ cup compost into potting mix or use as a top dressing every 6–8 weeks.
Best Used On: Monstera, Fiddle Leaf Fig, indoor tomatoes.
Avoid On: Succulents, cacti, bonsai—can cause overfertilization.
7. 🧅 Onion Skin Tea
Why: Natural source of potassium, calcium, and sulfur.
How to Use: Boil 1 cup of onion skins in 1 quart of water, let steep overnight, cool, and strain. Use once a month as a foliar spray or root drench.
Best Used On: Peace Lily, Bird of Paradise, Orchids.
Avoid On: Ferns, Calatheas—sensitive to strong-smelling fertilizers.
8. 🥔 Potato Water (Unsalted)
Why: High in potassium, supports growth.
How to Use: After boiling potatoes (no salt!), let water cool completely. Use 1 cup per plant every 2–3 weeks.
Best Used On: Pothos, Philodendron, Spider Plant.
Avoid On: Succulents, cacti—too much moisture, and starch can mold.
9. 🌻 Epsom Salt (Magnesium Sulfate)
Why: Helps green up yellowing leaves and supports nutrient absorption.
How to Use: Dissolve 1 tablespoon of Epsom salt in 1 gallon of water. Water plants once every 4–6 weeks.
Best Used On: Fiddle Leaf Fig, Monstera, Peace Lily (if magnesium-deficient).
Avoid On: Plants already thriving in nutrient-rich soil—ZZ, Snake Plant.
10. 🍏 Apple Cider Vinegar (Highly Diluted)
Why: Acidifies alkaline soil; ideal for acid-loving plants.
How to Use: Mix 1 teaspoon of apple cider vinegar in 1 gallon of water. Use once every 4–6 weeks during active growth.
Best Used On: Gardenia, Azalea, Calathea, Ferns.
Avoid On: Succulents, Jade, Spider Plant—can make soil too acidic.
