Top 5 Mistakes Gardeners Make When Using Cocopeat (and How to Fix Them)
Cocopeat is lightweight, eco-friendly, and great for plants—but only when used correctly. Many gardeners unknowingly make mistakes that affect plant health and growth.
Let’s look at the top 5 common mistakes gardeners make with cocopeat, along with easy fixes you can start using today.
1. Using Cocopeat Without Washing, Testing, or Checking EC
The Mistake:
Unwashed cocopeat may contain high levels of salts (high EC), which harm sensitive plants and seedlings. Even some store-bought mixes may not be pre-washed or tested for EC.
know how to check EC of cocopeat
Ideal EC:
✅ Below 0.5 mS/cm is safe
❌ Above 1.0 mS/cm is considered high
Fix:
- Soak cocopeat in clean water for 24 hours
- Rinse 2–3 times
- Test runoff water with an EC meter
- Choose brands that guarantee low EC & TDS cocopeat
2. Ignoring TDS (Total Dissolved Solids) in Water
The Mistake:
Using hard water (high in TDS) for soaking or watering cocopeat increases salt buildup, even if your cocopeat is low EC.
Ideal TDS:
✅ Below 300 ppm
❌ Above 500 ppm = increased salt stress on roots
Fix:
Use RO, filtered, or rainwater to prepare cocopeat and water plants.
3. Using Cocopeat Alone as a Growing Medium
The Mistake:
Cocopeat lacks nutrients and doesn't provide structure for drainage. Used alone, it may lead to root rot, nutrient deficiencies, or stunted growth.
Fix:
Mix cocopeat with:
- Perlite or pumice for aeration
- Vermicompost or compost for nutrition
- Sand or bark for better drainage
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4. Letting Cocopeat Become Hydrophobic
The Mistake:
When dry cocopeat is left unused for a long time, it becomes hydrophobic—meaning it repels water instead of absorbing it. Read more about hydrophobic cocopeat here
Why it happens:
The fine fibers dry out and lose their natural ability to hold water, forming a surface that makes water pool and run off instead of soaking in.
Bad Effects:
- Water sits on top and doesn't reach roots
- Roots dry out despite watering
- Uneven moisture in the pot
How to Avoid It:
- Never let cocopeat fully dry out for weeks
- Always moisten before storing if you'll reuse soon
- Store in airtight containers if dry
How to Fix Hydrophobic Cocopeat:
- Break it up and soak in warm water for at least 10-12 hours
- Stir well until it regains its spongy, fluffy texture
5. Improper Storage of Hydrated Cocopeat
The Mistake:
Keeping soaked cocopeat in a closed bucket or plastic bag can cause it to compact, become dense, and lose airiness. It may also leach nutrients if water is not drained well.
Fix:
- Store hydrated cocopeat in a well-drained, covered container
- Use within 2–3 days
- For longer storage, dry it fully and keep it in sealed bags in a cool, dry place
Final Thoughts
Cocopeat is an excellent growing medium—but only if handled with care.
Avoiding these simple mistakes can mean the difference between weak plants and a thriving garden.
Want to skip the risk?
Go with SoilAce potting mixes made with low EC, low TDS cocopeat and carefully blended with better aeration, drainage, and plant health.
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Frequently Asked Questions (FAQs) About Cocopeat Use
-
What is the ideal EC level for cocopeat?
The EC (Electrical Conductivity) of cocopeat should be below 0.5 mS/cm for safe use, especially for seedlings and sensitive plants. -
How can I test the EC of cocopeat at home?
Soak the cocopeat in water for a few hours, then test the runoff water using a digital EC meter. If EC is high, rinse and soak again. repeat the process, please check know how to check EC of cocopeat. -
What should I do if my cocopeat is hydrophobic?
Soak it in warm water for 1–2 hours and stir thoroughly. You can also use a few drops of a wetting agent or mild liquid soap to help absorption. -
Can I reuse cocopeat?
Yes. Just make sure to rehydrate, rinse it well, and ensure it’s free from salt or fertilizer buildup before reusing. -
Is it okay to use only cocopeat for potted plants?
Not recommended. Cocopeat alone holds water but lacks nutrients and structure. Mix it with compost, sand, or perlite for best results. -
How long can I store cocopeat?
Dry cocopeat can be stored for months if kept in airtight containers. Hydrated cocopeat should be used within 2–3 days or dried before long-term storage.