Xtreme Gardening Mykos WP is a wettable-powder mycorrhizal inoculant for established plants. Mix it with water and apply around the base of each plant, or add it to a hydroponic reservoir. The single specific species of mycorrhizae in Mykos colonizes roots, expands root mass, and improves the plant’s uptake of water and nutrients. This 2.2 lb bag treats a large number of plants and works alongside any nutrient line.
Mykos WP Specifications
Mykos WP is a dry, water-soluble mycorrhizal inoculum supplied in a 2.2 lb (1 kg) bag. Unlike granular soil amendments, the wettable-powder format dissolves into water so it can be poured around the root zone or run through a reservoir. The table below summarizes the key product facts grounded in the manufacturer listing for this size.
| Specification | Value |
|---|---|
| Product | Xtreme Gardening Mykos WP (Wettable Powder) |
| Type | Mycorrhizal inoculant / beneficial soil microbe |
| Active organism | Single specific species of mycorrhizae |
| Form | Wettable powder (mixes with water) |
| Pack size | 2.2 lb (approx. 1 kg) |
| Shipping weight | 2.30 lb |
| Application | Soil drench around plant base or hydroponic reservoir |
| Nutrient compatibility | May be used with any nutrient line |
Why Choose Xtreme Gardening Mykos WP
Mycorrhizae are fungi that form a symbiotic relationship with plant roots. The fungal network effectively extends the reach of the root system into the surrounding medium, drawing in water and dissolved nutrients the roots could not access on their own. In Xtreme Gardening’s words, with more roots you get more fruits. Mykos WP delivers that relationship in a form that is easy to apply and easy to dose.
- One focused species. Mykos uses a single specific species of mycorrhizae rather than a broad blend, which the manufacturer positions as working faster and stronger.
- Builds root mass. Once established, the fungus colonizes the root zone and increases the plant’s uptake of both water and nutrients.
- Wettable-powder convenience. The WP format mixes straight into water, so you can drench around the base of each plant or add it to a reservoir without working dry granules into the medium.
- Works with any feed. Mykos is a beneficial additive, not a fertilizer, so it slots into whatever nutrient line you already run.
- Bulk size. The 2.2 lb bag is a cost-effective choice for growers treating many plants or recharging reservoirs across a full crop cycle.
Best Uses for Mykos WP
Because Mykos WP is designed for established plants and dissolves into water, it fits a wide range of growing styles. The manufacturer calls it out specifically for vegetables, fruits, flowers, and herbs.
- Soil and container gardens. Mix with water and apply as a drench around the base of established vegetables, fruiting plants, flowers, and herbs.
- Raised beds and outdoor plots. Use it to introduce mycorrhizae to the root zone of transplants once they are settled in.
- Hydroponic reservoirs. Mykos WP is noted as great for use in hydroponic reservoirs, putting the inoculant directly into the recirculating water that contacts the roots.
- Mixed nutrient programs. Pair it with whatever base feed you run, since it can be used with any nutrient line.
- Root-development pushes. Apply it when you want to encourage a denser, more efficient root system on plants that are already growing.
If you are building out a broader root and microbe program, Mykos pairs naturally with other beneficial-biology products. Growers often run it alongside a microbial inoculant such as Advanced Nutrients Tarantula for added beneficial bacteria, or a root stimulant like Heavy 16 Roots to support early root development.
Mykos WP vs Granular Mykos and Other Inoculants
Xtreme Gardening offers Mykos in more than one format. The wettable powder (WP) reviewed here is built to dissolve into water, which makes it the right pick when you want to drench an established root zone or dose a hydroponic reservoir. A granular Mykos product, by contrast, is typically worked into the medium at planting or transplant. If your plants are already in the ground or in their final containers, the WP form lets you deliver the inoculant to the roots without disturbing the medium.
Compared with broad-spectrum biological additives that combine many bacteria and fungi, Mykos WP concentrates on a single specific species of mycorrhizae. That focus is the manufacturer’s argument for why it works faster and stronger. If you want bacterial diversity in addition to mycorrhizae, you can layer a separate microbial product on top of Mykos rather than relying on a single all-in-one blend. For a whole-plant biological approach, some growers combine Mykos with a plant-based wash like PureCrop1, keeping the root inoculant and the foliar program as separate tools.
Compatibility
Mykos WP is a beneficial additive rather than a fertilizer, and the manufacturer states it may be used with any nutrient line. That makes it broadly compatible with mineral and organic feed programs alike. It is intended for established plants and is suited to both soil-based and hydroponic growing, since it can be applied as a drench around the plant base or added to a reservoir.
Mykos is the mycorrhizae component of Xtreme Gardening’s beneficial-biology lineup. It is commonly paired with the company’s Azos nitrogen-fixing bacteria product for a more complete root-zone biology program, though Mykos WP works on its own. Because it relies on living fungi, avoid combining it in the same mix with products specifically designed to kill fungi, and follow the manufacturer’s guidance for any feed schedule you are running.
Dosing Guidelines
Mykos WP is designed for use on established plants. The core method, per the manufacturer, is simple: mix the powder with water and apply the solution around the base of each plant so it reaches the root zone. For hydroponic growers, the powder can be added to the reservoir instead, putting the inoculant into the water that recirculates through the roots.
General application approach:
- Measure out the powder and dissolve it into clean water, stirring until it is fully suspended.
- For soil and containers, pour the solution around the base of each established plant so it soaks into the root zone.
- For hydroponics, add the dissolved powder directly to the reservoir.
- Reapply as needed through the crop cycle to maintain colonization, especially after heavy flushing.
For precise rate-per-plant and rate-per-gallon figures, follow the dosing chart on the Xtreme Gardening product label, since exact rates vary by plant size and growing method. Mykos works best when the fungus can make direct contact with living roots, so apply it where the solution will reach the root zone rather than the upper foliage.
Sources & Further Reading
- Xtreme Gardening official site — manufacturer information on Mykos mycorrhizae and the wider beneficial-biology range.


















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