Knockout Rose Bushes

fertilized my roses

Zone 6 | m.yurkovich added on July 9, 2015 | Answered

I just fertilized my roses. How long should I wait to apply Epsom salt water? I have knockout roses that are not doing well this year (had them for 4 years).

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    Certified GKH Gardening Expert
    Answered on July 10, 2015

    I sprinkle 1/2 cup of Epsom Salts around the base of the rosebushes and work it into the soils a bit. Then water in well. This can be done the next day if desired, same goes for the Epsom Salts water application.

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