The HTA said a collaborative approach and the recent Flood & Water Management Bill will offset the need for restriction.
HTA business development director Tim Briercliffe said: "Hosepipe bans deter people from planting and gardening and have a savage effect on growers and retailers of plants, many of which are small businesses."
The HTA has called again for a transparent code of practice on the issue. HTA have proposed a code and calls on United Utilities to follow it and take the lead.
United Utilities has applied a drought permit, which could lead to a hosepipe ban, after the lowest rainfall in the region since 1929. Water regulation and strategy manager John Sanders said: "At the start of December, our reservoirs were 96 per cent full, but because of the low rainfall since then they are well down for the time of year."
He added: "We have taken early action to move water around the region to even out supplies and we are also bringing ground water reserves into use."
Ribblesdale Nurseries owner Phil Dunnet warned: "The worst case scenario is that it will put us out of business."