UGRO POT4 Rhiza – Dehydrated Coco Substrate with Mycorrhizae (4L)

UGRO POT4 Professional Rhiza is much more than just dirt; it is a high-performance growing medium designed to maximize the potential of your crop from day one. It consists of a 500-gram block of pressed and dehydrated coconut coir that, when hydrated, turns into 4 liters of premium substrate enriched with endomycorrhizae. This combination ensures an airy structure for the roots and a symbiotic relationship that multiplies the absorption of nutrients, guaranteeing vigorous growth and heavier harvests.

Why is your current substrate limiting your yield?

Are you tired of hauling heavy, conspicuous bags of soil that only bring pests and compaction problems to your grow room? Many growers underestimate the importance of the root zone, using generic substrates that suffocate roots and slow down development, directly affecting the final weight of the buds.

If you ignore the health of your roots, you are throwing money and time away. A compacted substrate without biological life prevents the plant from eating properly, no matter how many fertilizers you use. The result? Weak plants, stress, and a harvest that is far from what you expected.

The solution is UGRO POT4 Rhiza. By switching to this coconut substrate with mycorrhizae, you not only save space and gain discretion (it fits in a backpack), but you also ensure a colonized root environment that works for you. The mycorrhizae act as an extension of the roots, searching for water and food where the plant cannot reach, ensuring explosive development.

The smartest foundation for professional roots

This block is designed to offer you the perfect balance between water retention and aeration, creating the ideal home for your plants' root system. It is the "cheat code" for those looking for professional results without complicating their lives with heavy mixtures.

Key features and benefits in a nutshell

• Enriched with Endomycorrhizae: Creates a symbiotic network that increases nutrient and water uptake, making your plants stronger and hungrier.
• Pressed and Dehydrated Format: A 500g brick is easy to transport and hide; say goodbye to carrying huge sacks up the stairs.
• Superior Aeration: Coconut fiber prevents caking, allowing roots to breathe and grow without resistance.
• Low EC and Buffered: It comes washed and treated to prevent salt lockouts, ready for you to add your favorite Cannabis fertilizers from the start.
• Water Retention: Holds moisture efficiently while draining excess, preventing the dreaded root rot.

How to use it in a few steps

Preparing your substrate has never been so fast and clean. Forget about mess and complicated tools:

1. Place the UGRO POT4 Rhiza block in one of your Indoor and Outdoor Planters or a bucket.
2. Add approximately 3 liters of water (preferably with a regulated pH) and wait for the block to absorb it.
3. Watch it expand until it becomes 4 liters of fluffy, high-quality coconut coir.
4. Fluff the substrate with your hands to aerate it and it is ready for your seeds or cuttings.

Frequently Asked Questions

Do I need to add nutrients from the beginning?

Yes, coconut is an inert substrate (it has no nutrients of its own). Although Rhiza helps absorption, you must water with a complete fertilizer solution from the first week.

Is it suitable for autoflowering plants?

Absolutely. The airy structure of the coconut is perfect for autoflowers, allowing their roots to grow fast before flowering begins.

Can I mix it with soil or perlite?

Yes, you can mix it with soil to improve its sponginess or add perlite to increase drainage even more, although UGRO Rhiza already has excellent aeration on its own.

Personal Experience of Pevgrow’s CEO (Alan)

I have been using UGRO bricks for years, especially when I want to set up a quick crop and don't feel like carrying 50-liter bags. The difference with the "Rhiza" version is noticeable in the transplant: when you take the plant out of the pot, the root ball is a dense, white block of healthy roots. That doesn't happen with just any coconut.

For me, it is a basic in the storage closet. It takes up no space, does not expire, and saves you in any emergency if you run out of soil. Plus, the control you have over the plant's feeding in coconut is total. If you want to jump to the next level of production, this is the easiest first step.