The company is returning to Glee after many years after being bought by French company SBM Développement (SBM) this year.
Bayer garden head Darren Brown said: "We are looking forward to returning to Glee. We have some incredibly strong brands and a very exciting future ahead of us. Attending Glee, the number one trade exhibition in the home and garden sector, gives us the perfect opportunity to share our plans with customers."
The SBM sale is expected to complete in October 2016. Until that point Bayer Garden will continue to operate as part of Bayer.
According to the agreement, as well as rights to the full Bayer Garden product portfolio, SBM will have access to the Bayer Garden R&D pipeline and, for a transitional period, Bayer will also continue to supply active ingredients to SBM on a contractual basis.
All current employees dedicated to the Bayer Garden business will transfer to SBM.
Brown added: "SBM is the right company to grow the consumer home and garden businesses and serve our customers. SBM has the strategic mindset, commitment and deep consumer experience to achieve its vision of becoming a global leader in the home and garden business.
"Furthermore, its experience with biologic solutions, soils and fertilizers fully supports the desired extension of the Bayer home and garden portfolio for a stronger footprint in the market."