Local branch (Ayr) but probably UK wide had great deals on gardening stuff. Found in seasonal aisle with BBQ ect.
Examples include kids gardening set for £1.50 was £6.00. Gardening hat and cotton apron set for £1.50 start price again about £6. Also loads of kids grow your own tomatoes, wild bird food ect sets for £1-2 pounds.
Also NOT for kids see picture Avignon Folding Metal Bistro Set Green down to £13 from £50 and hammocks (catgue number: 202-4058) down from £20 to £5. Watering cans and various gardening tools down 75% also. Definitely worth a look.