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Home Ask MG Using multiple fertilizers

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Using multiple fertilizers

April 14, 2009   •   

While planting perennials this fall, I scattered a few bulbs in each planting hole along with Bulb Booster fertilizer.  After backfilling the hole, I watered with a solution of Fertilome root stimulator, which I have used with great success for many years. Is this fertilizer combination a problem for either the bulbs or the perennial?

One should always be careful about overdoing a good thing. While I doubt you caused any harm in what you did using this combination, it would be easy to injure newly planted perennials by using too much fertilizer.

Bulb Booster is a slower-releasing fertilizer product that will provide root building nutrients over a period of weeks to the establishing plant. Fertilome Root Stimulator, on the other hand, provides immediate stimulation to the plant. It contains a root stimulating hormone to help initiate new roots, as well as a mild, water soluble fertilizer to aid in the plant’s establishment.

If the Bulb Booster is mixed with the planting soil, and both fertilizers are used according to package directions, I doubt that any harm would result from this combination. 

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