12-pack grow sponges for hydroponic systems with resealable bag – seeds not included.jpg
50-pack hydroponic grow sponges with illustrated instructions on kraft paper bag.jpg
12-pack grow sponges for hydroponic systems with resealable bag – seeds not included.jpg
50-pack hydroponic grow sponges with illustrated instructions on kraft paper bag.jpg

Hydroponic Grow Sponges

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€21,00

EUR

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In stock - ships from supplier warehouse
Estimated delivery: 9-17 business days.

📦 Mix and Match Across Products:

2 items → 5% off

3 items → 10% off

4+ items → 15% off

Quantity

Not satisfied? No problem. You can return any unused item within 90 days of delivery, as long as it’s in its original packaging.

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Grow Sponges - Refills for Your Hydroponic System

Keep your plants growing with these easy-to-use replacement sponges - made to fit most hydroponic systems.

 

They hold moisture, support healthy roots, and make seed starting simple.
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Why You’ll Love Them

Made for Hydroponics - Ideal for seed germination in soilless systems

Great Water Retention - Keeps seeds moist and happy

Easy to Use - Just soak, insert seeds, and grow

Encourages Strong Roots - Soft, porous texture lets roots breathe

Compatible with Most Systems - Fits common hydroponic kits and seed starter trays

Buy now

Looking for a complete setup?

These sponges are designed to fit perfectly with my Hydroponic Growing System - the ideal match for clean, soil-free growing.

Go to Grow System

Product Details

Material: Natural sponge (peat-based)

Size (soaked): approx. 2.55 and 0.95 inches

Quantity Options:
- 12-Pack.
- 50-Pack.

Color: Brown

Use: Hydroponic growing, seed starting

Compatibility: Fits most hydroponic kits

Included:

12-Pack:
- 12x Grow Sponges

50-Pack:
- 50x Grow Sponges

 

Please note: Seeds, herbs, and growing system are not included.

Let’s Clear Things Up

Need help finding an answer to your question?
Just send me a message at support@pureandpractical.com 

I’m happy to help.

Are these compatible with my hydroponic system?

Yes! They’re designed to fit most common hydroponic setups, including our Hydroponic Growing System.

Do I need to soak them before planting?

Yes. Just soak each sponge in water for 3-5 minutes before placing seeds inside.

Can I reuse the sponges?

They are intended for single use to ensure clean and healthy seed starting. For best results, use a new sponge for each grow cycle.

What kind of seeds can I use?

You can use most small herb and vegetable seeds like basil, lettuce, mint, and more. Avoid very large seeds that may not fit well in the sponge.
 

Tip: Choose seeds that tolerate high humidity well to prevent rotting during germination

Are seeds included?

No, seeds are not included - but you can use your own favorites!

Buy now

Not satisfied? No problem. You can return any unused item within 90 days of delivery, as long as it’s in its original packaging.
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Customer Reviews

Based on 1 review
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H
Hans K
Simple but Essential

These sponges do exactly what they’re supposed to. They fit the system perfectly and make it easy to start new plants. Handy to have extras on hand.

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