Jack’s Magic from Westland has completed its domination of the GTN Bestsellers Growing Media chart for January. Last year it was the No 1 bestselling line all the way through to February and this year has been the same.

Other strong performers:

• Westland Large Potato and Veg Planter is the highest climber, rising 25 places to No 15.
• The ‘Organic Instant’ version is the highest re-entry.
• Scotts Miracle-Gro All Purpose Compost (56 litres) and Westland Growbag are other products returning to the Top 50 bestsellers.
• Arthur Bowers John Innes Seed has seen sales double in the past week.