The firm hopes an ongoing £600,000 investment plan will see production levels increase, delivery times improve, and the sales team expand to incorporate wider UK coverage.
Director Alex Riehl said: "The last 12 months has been a period of significant growth for our business, however this is only the start of our long-term vision for G Plants.
"Our new office facility is reflective of our development goals in that we are able to immediately increase capacity and offer improved customer service levels, whilst also providing us with the room to grow even further as we carry out the next steps in our plans."
G Plants has introduced a new office facility, which has helped production levels peak at 50,000 kilos of grass seed per day. Deliveries have expanded to 10 trailers per day thanks to the five new loading bays the firm said. In addition, a UKTI grant will enable the company to create 10 new jobs.
Riehl added: "Growing our team is a key priority at present. We are currently looking to recruit sales personnel to help increase our coverage across the UK, with a particular focus on the south-west, the Midlands, the north and Scotland."
Following a year of trials at Myerscough College, G Plants has launched several new varieties for the 2015 season.