"More people are choosing to buy British at the moment - and so they should when the right quality and price are available," said managing director Andy McIndoe.
The Hampshire-based company will be taking part in the Woking Nursery Exhibition on 8 July, after an absence of three years. Hillier also showed for the first time at the British Plant Fair in February.
McIndoe said: "We need to go out and fly the flag. We have pulled back from some of the shows over the past couple of years."
The Woking stand will also help the company to raise the profile of its cash and carry in Sunningdale.
The company will be promoting its Feature Plant range, which launched in January. There are more than 190 different plant varieties in the range, which are grown in 10-litre, 30-litre and 50-litre pots at the Hampshire nursery.
McIndoe added: "The cordylines, phormiums, pittosporums, acacias and euphoribas have been selling really well. We are having a good season so far and it seems the quality retailers are looking for quality product rather than for a cheap price, which is encouraging."