Mycorrhizal Fungi

Natural Root Support from the Ground Up

Plant Tonics Mycorrhizal Fungi contains the beneficial fungus Rhizophagus intraradices, naturally forming a living relationship with plant roots. Once established, these beneficial fungi extend the root system, helping plants absorb more water and nutrients while supporting stronger, healthier growth.

Ideal for trees, shrubs, flowers, perennials, vegetables, fruit plants, roses, ornamental plants, hedging and container planting — perfect when planting new specimens or transplanting established plants.

Mycorrhizal Fungi Natural Root Growth

£9.99

Size 100g 200g 400g 1kg 2.5kg

NATURAL MYCORRHIZAL FUNGI FOR STRONGER ROOTS – Plant Tonics Mycorrhizal Fungi contains Rhizophagus intraradices, a beneficial soil fungus that forms a natural partnership with plant roots. By extending the root system, it helps improve nutrient uptake, supports stronger root development and encourages healthier, more resilient plants.
SUITABLE FOR ALL PLANTS – Ideal for flowers, shrubs, trees, vegetables, herbs, fruit plants, lawns, bulbs, seedlings, houseplants, pots and containers. Suitable for use in gardens, nurseries, greenhouses and commercial growing, making it a versatile mycorrhizal fungi treatment for almost every planting project.
IMPROVES NUTRIENT & WATER UPTAKE – Beneficial mycorrhizal fungi help plants access more nutrients and moisture naturally by increasing the effective root surface area. Supports vigorous growth, healthier root systems and improved establishment while helping reduce transplant stress after planting or repotting.
EASY TO APPLY WHEN PLANTING OR REPOTTING – Simply apply directly into the planting hole, around the root zone or mix into soil or compost. Suitable for seeds, bulbs, established plants, pots, trees, raised beds and agricultural applications. Available in 100g, 200g, 400g, 1kg and 2.5kg packs to suit home gardeners and professional growers.
PLANT TONICS PROFESSIONAL SOIL BIOLOGY – Powered by Rhizophagus intraradices with approximately 245 active spores per gram, this natural soil enhancer works alongside your regular fertiliser programme to support long-term soil health and plant performance. Compatible with natural fertilisers and ideal for sustainable gardening.

Improves nutrient uptake
Supports stronger root development
Helps reduce transplant stress
Encourages healthier plant establishment
Enhances access to water in the soil
Suitable for flowers, trees, shrubs and vegetables
Ideal for gardens, nurseries, pots and farms
Natural biological soil enhancer
Easy-to-apply granular formulation
Compatible with natural fertilisers

Gardens & Nurseries

Planting: Apply 5g (1 tsp) directly into the planting hole, in contact with roots

Seeds & bulbs: Mix 5g into soil before planting

Established plants: Apply near the root zone and water in

Small to medium plants: 5–15g

Larger plants: 25–50g

Beds: Mix 100g per m² into soil or compost

Seedlings: Apply 5g per plant before planting

–––––

Trees

Apply at planting, directly into the root zone

Medium trees: 50g

Large trees: 100g

–––––

Pots

Apply 5g per 2L of soil

Increase for larger pots

Reapply after 2 months

–––––

Farms

Mix 3–5kg with 50kg compost or soil

Apply evenly at 2–3 cm depth

Use before sowing

Repeat after 30–60 days

Directions for Use

Gardens & Nurseries

Planting:
Apply 5g (1 tsp) directly into the planting hole, in contact with roots

Seeds & bulbs:
Mix 5g into soil before planting

Established plants:
Apply near the root zone and water in
Small to medium plants: 5–15g
Larger plants: 25–50g

Beds:
Mix 100g per m² into soil or compost

Seedlings:
Apply 5g per plant before planting

–––––

Trees

Apply at planting, directly into the root zone
Medium trees: 50g
Large trees: 100g

–––––

Pots

Apply 5g per 2L of soil
Increase for larger pots
Reapply after 2 months

–––––

Farms

Mix 3–5kg with 50kg compost or soil
Apply evenly at 2–3 cm depth
Use before sowing
Repeat after 30–60 days

Frequently Asked Questions

What is Plant Tonics Mycorrhizal Fungi?

Plant Tonics Mycorrhizal Fungi is a natural soil enhancer containing the beneficial mycorrhizal fungus Rhizophagus intraradices. It forms a natural partnership with plant roots to improve nutrient and water uptake, support stronger root development, and help reduce transplant stress.

What does mycorrhizal fungi do?

Mycorrhizal fungi create a natural network around plant roots, extending their ability to absorb water and nutrients from the soil. This helps plants establish more quickly, develop stronger root systems, and grow healthier and more resilient.

What plants is this product suitable for?

Plant Tonics Mycorrhizal Fungi is suitable for almost all plants, including: • Flowers • Trees • Shrubs • Houseplants • Fruit plants • Vegetables and edible crops • Perennials • Bedding plants • Container plants • Nursery stock It can be used in gardens, pots, raised beds, greenhouses and commercial growing environments.

Is this a natural product?

Yes. Plant Tonics Mycorrhizal Fungi is a natural soil enhancer powered by Rhizophagus intraradices, a beneficial mycorrhizal fungus that naturally occurs in healthy soils.

Is it safe to use around edible plants?

Yes. It is suitable for fruits, vegetables, herbs and other edible plants when used as directed.

When should I apply mycorrhizal fungi?

For best results, apply at planting or transplanting so the fungi can make direct contact with the roots. It can also be applied to established plants by placing it near the root zone and watering in.

How do I apply Plant Tonics Mycorrhizal Fungi?

Apply the recommended amount directly into the planting hole, mix it into the soil before planting seeds or bulbs, or apply around the root zone of established plants. Always ensure the product comes into contact with the roots for maximum effectiveness.

Can I use it in pots and containers?

Yes. Plant Tonics Mycorrhizal Fungi is ideal for pots, containers and hanging baskets. Apply approximately 5g per 2 litres of compost or soil, increasing the amount for larger containers.

Can I use it on trees and shrubs?

Yes. It is suitable for both ornamental and fruit trees, shrubs and hedging plants. Apply directly into the planting hole or root zone during planting.

Does it help reduce transplant shock?

Yes. By establishing a beneficial relationship with the plant's roots, mycorrhizal fungi help reduce transplant stress and support quicker establishment after planting.

Your cart is empty

Directions for Use

Frequently Asked Questions

Join our email list

Your cart is empty

Featured product

Slideshow

Directions for Use

Frequently Asked Questions