Question: What concerns should I have about the wider ecosystem if I’m considering adding Mycorrhizae to the soil around my roses? Answer: Jonathan Foster, Special Projects Assistant As you probably know, based on your question, mycorrhizae are soil-based fungal organisms that form symbiotic relationships with almost all terrestrial plant roots, exchanging their vastly greater surface area’s ability read more What concerns should I have about the wider ecosystem if I’m considering adding Mycorrhizae to the soil around my roses?