Posted: 28/02/2016 at 19:34
Shirley, it will not be enough to put some acidic compost in the planting hole for blueberries. The whole soil must be acid and this is why many of us grow them in pots.
rhubarb.......best planted about 3' apart. they grow pretty big. Can you add some dried manure and fish blood and bone around your plants? Rhubarb needs plenty of moisture and bulky organic matter to do well. So, if you have planted just one foot apart space them further apart.
lavendar wants very good drainage and little or no feeding. Plenty of sunshine and add grit to your planting hole. Better in the ground but if in a pot take away that saucer