A South Portland company that was sold to a Dutch company last year now has a new partner from Canada.

Grow-Tech Inc., which makes seed and cutting media for professional horticultural applications, was sold to Dümmen Orange, a floricultural company, last June. Grow-Tech announced Thursday that it will merge with sister companies Quick Plug in the Netherlands and Omni Growing Solutions in Canada to form Quick Plug Global.

All three brands will now use the Quick Plug name. The merger brings together 75 years of industry knowledge and an extensive product line, according to a Dümmen Orange statement.

Operations in Maine, Canada and the Netherlands are expected to remain the same. About 45 people are employed at the South Portland plant.