Soaking in Phyton 27

[dounoharm]

I have used phyton in a greenhouse setting. I sprayed it several times a year as general maintanence and preventative....I did spray dendrobiums, but they spotted afterwards, so I tried to avoid them when spraying. soaking I would think might kill your plant if immersed for any length of time....as it is copper based, it can be an herbicide and thus not very good for long term exposure....good luck!