Knowledgebase

Container Vegetable fertilization #869287

Asked May 20, 2024, 2:39 PM EDT

I have a number of containers on my deck that I am growing tomatoes, eggplants and peppers. I am fertilizing these containers with Osmocote Plus (15-6-12) this year and have been unable to find any instructions on container size and amount of Osmocote 15-6-12. any suggestions on the amount of fertilizer to use would be appreciated.

Howard County Maryland

Expert Response

Hi, 

Here is the product label we found with measurements and conversions. We were able to find Osmocote Plus 15-9-12, but not with a phosphorus level of 6, perhaps you meant 9? 

So about 2.5 ounces/5 gallon pot (about 4.5 TBS) at planting and again after 8 weeks or so depending on soil temps and plant growth.

Let us know if you have further questions. 

Emily 

Answered by the Home and Garden Information Center (HGIC), University of Maryland Extension. For timely gardening information and tips, subscribe to our Maryland Grows blog and quarterly newsletter. Follow us on Facebook, Instagram, and YouTube. Replied May 21, 2024, 12:11 PM EDT

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