Roses
Q.

Knock Out Roses

Zone Simpsonville, SC Upstate area | Judith Barnard added on May 9, 2018 | Answered

A service pust nutrient applications on all of my shrubs 3 times a year. They call it deep root fertilization. If this is donedo I need to[ or should I] do feedings throughout the year?

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roseman
Answered on May 11, 2018

You may not need to. I would ask for a breakdown and the NPK rating for their applications. This way you can be sure what they are getting. Giving the rosebushes some kelp meal and alfalfa meal (1/2 cup of each) twice a year would likely be good to do. Work the meal into the soils lightly and water it in. I would apply one then wait a couple weeks and apply the other.

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