How to Make Your Own Fertilizer at Home (Malaysia Beginner Guide)

🪴 Intro: The Secret to Fertile Soil is Already in Your Kitchen

Before you spend RM15 on a bag of commercial fertilizer, check your kitchen bin. That banana peel? The eggshells? Even your leftover ikan bilis wash water — all of them can become powerful, organic plant food.

In this Malaysia-style beginner guide, we’ll teach you how to make DIY homemade fertilizer using common household waste. It’s cheaper, safer, and your pokok will absolutely love it.

💡 Why Make Your Own Fertilizer?

  • ✅ Save money (zero cost if done right!)
  • ✅ Reduce kitchen and garden waste
  • ✅ Avoid chemicals in your edible plants
  • ✅ Enrich soil naturally over time

🔄 Top 7 Homemade Fertilizers You Can Try in Malaysia


1. 🍌 Banana Peel Tea

  • What it’s good for: Flowering & fruiting plants (rich in potassium & phosphorus)
  • How to make:
    1. Chop 2 banana peels
    2. Soak in 1L water overnight
    3. Strain & water your plants every 1–2 weeks

2. 🥚 Crushed Eggshells

  • What it’s good for: Tomatoes, chillies, eggplants (adds calcium)
  • How to use:
    • Air-dry & crush into powder
    • Sprinkle at base of plants or mix into soil
    • Optional: blend with water and let sit overnight

3. 🐟 Fish Amino Acid (FAA)

  • What it’s good for: Leafy greens, fruit trees (rich in nitrogen)
  • How to make:
    • Mix 1:1 chopped raw fish + molasses or brown sugar
    • Seal in container and ferment for 2 weeks
    • Dilute 1:500 with water before use

⚠️ Warning: Very smelly — store outdoors!


4. ☕ Used Coffee Grounds

  • What it’s good for: Acid-loving plants (e.g. roses, chillies, blueberries)
  • How to use:
    • Sprinkle a thin layer on soil
    • Mix into compost
    • Avoid using in excess (can cause soil compaction)

5. 🥬 Vegetable Scrap Compost

  • What it’s good for: General plant health, soil texture
  • How to make:
    • Use uncooked veggie scraps (avoid meat/oil)
    • Combine with brown waste (paper, dry leaves)
    • Let break down in a compost bin over 4–6 weeks

6. 🧂 Rice Water (Air Basuhan Beras)

  • What it’s good for: All plants (adds trace minerals)
  • How to use:
    • Collect water from first rice rinse
    • Use to water plants 2–3x a week
    • Use fresh — don’t store for more than 24 hours

7. 🐛 DIY Compost Tea

  • What it’s good for: Reviving tired plants and soil
  • How to make:
    • Soak 2 handfuls of compost in 1L water for 24 hours
    • Strain and spray or pour onto plant base

🛠 Tools You Might Need

  • Small food blender (optional)
  • Airtight container for fermentation (e.g. peanut butter jar)
  • Old watering can or spray bottle
  • Gloves (for safety and hygiene)

⚠️ Things to Avoid

❌ No cooked food, meat, or dairy
❌ Don’t mix citrus peels in direct fertilizer (too acidic)
❌ No synthetic bags or plastic items
❌ Don’t over-apply — even natural fertilizers can harm if used excessively

📦 Bonus: Create a Starter Fertilizer Kit (Gift Idea)

Wrap these in a recycled basket with:

  • Small compost jar
  • Dried banana peel sachets
  • Crushed eggshell shaker
  • Printed guide with fertilizer recipes

Great as an eco-friendly birthday or housewarming gift!

🧠 Final Thoughts

You don’t need to buy fancy fertilizer to grow amazing plants. With just a few scraps from your kitchen and some basic know-how, you’ll be well on your way to a zero-waste garden that thrives.

Got a recipe to share? Tag us @projectharvest.my — we’d love to feature it!

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