Figures from 20 garden centres showed that 19 were up. December figures collected from 57 centres showed a six per cent decrease on 2009, with the year 2010 1.5 per cent up overall.
GCA chief executive Gillie Westwood said: "So far so good. This time last year the weather was awful. It's good that better weather this January has helped people get to garden centres for the sales."
Future GCA figures are likely to come from more garden centres after the association decided that groups must have at least 25 per cent or a minimum of five centres as GCA members, meaning Garden Centre Group, Dobbies and Klondyke could send in more data.