Go to the big box store buy the best soil you can get and a bag of sheep shit and a bag of compost. Get some bone and blood meal also.
Mix 20% sheep, 20% compost and the rest garden soil. Mix it up and crumble the sheep shit add the recommended amount of blood and bone and your off.
Water with molasses at a rate of 1 table spoon to 1 gallon.
If you want make a tea for them with the left over compost and sheep shit that's a good idea.
Peace