Smart Garden will have new packaging, point of sale and merchandising across the range of 350 new products.
The new products are "merely the leading edge of an ambitious product development programme that will continue to unfold in the coming months", say the company.
They include 50 lighting products including 32 battery-powered lighting products.
The Smart team has more than doubled in size to over 50 staff who have now moved into a brand new 1,500sqm office and showroom facility in Abingdon.
Marketing manager Jo Sensecall said Smart would not reveal what the 300 gardening products were until Glee (Birmingham 14-16 September).
Smart joins Crest Garden and Scotts Solus as new entrants in the general garden product wholesale market for 2014 after the demise of Solus and Scotts buying its brands.