Ontario Newsroom

Helping Greenhouse Growers

News Release

Helping Greenhouse Growers

Ontario Streamlining Environmental Compliance for Greenhouse Growers and Supporting Farms

Ontario is making it easier for greenhouse growers to comply with regulation regarding the disposal of greenhouse nutrient feedwater by streamlining environmental compliance that will benefit farmers and enhance protection of the environment.

The new Greenhouse Nutrient Feedwater Regulation will help greenhouse growers better comply with environmental standards by reducing the costs and uncertainty of approvals. It will promote the reuse, and facilitate the recycling of, greenhouse nutrient feedwater while providing farmers with a new source of nutrients to fertilize their crops.

This change was raised by the Open For Business Forum, a regular roundtable of agri-food experts convened to streamline regulations and promote a better business climate. It will benefit local farmers by providing a new source of inexpensive nutrients that can reduce the need for expensive commercial fertilizers, and supplemental irrigation water that can replace water drawn from lakes, rivers and wells.

Supporting the province's agri-food industry is part of the government's economic plan for Ontario. The four part plan is building Ontario up by investing in people's talents and skills, building new public infrastructure like roads and transit, creating a dynamic, supportive environment where business thrives, and building a secure savings plan so everyone can afford to retire.

Quick Facts

  • Ontario’s greenhouse sector is growing and contributes over $1.5 billion in farm gate sales to the province’s economy.
  • Many greenhouse operators use nutrient solutions to grow their produce. After reusing multiple times, operators sometimes must dispose of excess solution which can still contain nutrient value. This solution is referred to as “greenhouse nutrient feedwater” or GNF.
  • The new regulation helps greenhouse growers meet their legal obligation to safely dispose of GNF.
  • The purpose of the Nutrient Management Act is to manage materials containing nutrients in environmentally friendly ways while supporting agricultural operations and rural development.

Background Information

Additional Resources


Jeff Leal

“Through the Open For Business forum, we worked collaboratively with greenhouse growers and farmers to develop this regulation and ensure it meets their needs. Our government is committed to improving and streamlining regulations, enabling increased productivity and growth across the entire agri-food value chain.”

Jeff Leal

Minister of Agriculture, Food and Rural Affairs

“Greenhouse vegetable growers need to have the option of managing nutrients that are excess to their greenhouse operation as field crop inputs rather than waste to be disposed of. By providing that option this new regulation protects the environment while helping the sector to remain viable in a very competitive global trade setting.”

Don Taylor

Chairman, Ontario Greenhouse Vegetable Growers

“We fully support the collaborative approach taken by the Ontario government with this regulation. The incorporation of sector perspective on regulations as they are in their initial stages of development is critical to successful implementation.”

Dean Shoemaker

Executive Director, Flowers Canada (Ontario) Inc.

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