Fertilizer for boxwoods and rose combo

joannembApril 30, 2013

I have a boxwood hedge that is about 5 years old. I usually fertilize in the Spring, but last year I planted miniature roses in front of the hedge and will be fertilizing them with rosé tone. They are located right at the drip line where I would normally fertilize the boxwoods. Should I just use the rose tone and assume it will be sufficient for the boxwood? If not, cold someone recommend a fertilizer that would be good for both plants? Thanks!

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brandon7 TN_zone(7)

Why do you think they need fertilizer? What were the results of your soil test?

    Bookmark   April 30, 2013 at 10:02PM
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joannemb

I just always fertilize them in the spring....I have never done a soil test. The nursery I go to never suggested that, just fertilize along drip line in the spring.

    Bookmark   April 30, 2013 at 10:08PM
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mistascott(7A VA)

Boxwoods prefer alkaline soil and roses prefer slightly acid soil so I wouldn't cross fertilize since the rose fertilizer is specifically tailored to meet the needs of roses. I wouldn't fertilize period unless a soil test indicates a lack of nutrients, you have sharply draining sandy/gravel soil, or the plant is showing signs of a nutrient deficiency. If it ain't broke...

If you must, a 10-10-10 slow-release like Osmocote applied according to package directions is a fairly harmless bet.

This post was edited by mistascott on Wed, May 1, 13 at 3:10

    Bookmark   May 1, 2013 at 3:08AM
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ken_adrian Adrian MI cold Z5

a well established shrub.. like a boxwood NEVER needs feeding .. IMHO ... you are just making your nursery guys boat payment.. and he is forwarding half to the fert salesman ... '

FORGET ABOUT THEM ...

roses do need feeding.. for the flower production.. and i would feed them accordingly .. and PRESUME.. the boxwood will steal whatever it needs .. or can get ..

please.. shrubs are not children.. they do NOT need to be fed ...

ken

    Bookmark   May 1, 2013 at 8:51AM
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brandon7 TN_zone(7)

"The nursery I go to never suggested that, just fertilize along drip line in the spring."

...and I'll bet they had the fertilizer right there handy for you to purchase too.

Fertilizing without an indication of need is probably more likely to cause harm than good. Improper application of fertilizer is a big problem in the horticulture world. I would ONLY apply fertilizer when I determined the NEED for such. That determination may be something as simple as noticing low vigor, but could be better guided by a soil test. If you want to apply something anyway, at least go for a mild formulation.

    Bookmark   May 1, 2013 at 10:45PM
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joannemb

Thank you! Don't have to tell me twice, I won't touch 'em. One more thing I ca cross off my list of things to do!

    Bookmark   May 4, 2013 at 3:08PM
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