Food-Gardening Lessons From A Wartime Victory Garden

Visit the Gro Shop! merch hat Shop Merch

Do Outdoor Containers Need New Potting Mix Every Year?

“Do I have to change the soil mix in my outdoor containers every year?” –Question from Jay of Burlington, Canada

Answer: What are you growing and where? In general, the organic matter in soilless growing mix breaks down over the years. Not only does it loose structure, causing it to hold less air and moisture, but it loses nutrients, so additional fertilization is always required. Potting mix has a useful lifespan of about 1 to 2 years, before it needs to be amended, added to, or replaced. This is particularly the case with outdoor container plantings.

 

Leave a Reply

Content Disclaimer:

This site may contain content (including images and articles) as well as advice, opinions and statements presented by third parties. Sun Gro does not review these materials for accuracy or reliability and does not endorse the advice, opinions, or statements that may be contained in them. Sun Gro also does not review the materials to determine if they infringe the copyright or other rights of others. These materials are available only for informational purposes and are presented “as is” without warranty of any kind, express or implied, including without limitation warranties of merchantability, fitness for a particular purpose, and non-infringement. Reliance upon any such opinion, advice, statement or other information is at your own risk. In no event shall Sun Gro Horticulture Distribution, Inc. or any of its affiliates be liable to you for any inaccuracy, error, omission, fact, infringement and the like, resulting from your use of these materials, regardless of cause, or for any damages resulting there from.