I guess I'm the lazy gardener. We have thick sod at our place. Last weekend I started two new beds using the lasagna method. This is how I've started all my beds. First, a thick layer of newspapers and then layers of grass clippings, kitchen scraps, dead plant material (i.e. old bean plants but not tomato plants that may be diseased), chopped leaves from the lawnmower bag, and a heavy sprinkle of wood ashes, and some aged manure. You're supposed to alternate greens and browns. This pile will sink a lot by spring. In the spring, a layer of aged and composted horse manure (mixed with bedding, kitchen scraps, etc) is added to all the beds. Right now, the two beds are about 24 inches tall. Sometimes the used soil/dead plants from pots gets added. I built my first bed in 2007, planted it in 2008. I've been very happy with this system since we have plenty of the ingredients. I get the composted horse manure from a Craigslist find. Perhaps I add enough soil, wood ashes and manure to get a good mix. (We heat with wood.) I started the first bed with old grass clippings from a neighbor and kept adding different material as it became available.

Before purchasing anything labeled "topsoil" think about what it is you expect it to be. Since you already returned something being sold as "topsoil" since it was 80 percent clay would you expect other sources of "topsoil" to supply anything much different? A good garden soil will have about 92 percent mineral and about 8 percent organic matter which can be compost, leaf mold, shredded leaves, etc. I would not rely on the sellers assurances that what the seller is selling is what I want and have asked for about a 1 cup sample to test myself using this simple test. Soil test for organic matter. From that soil sample put enough of the rest to make a 4 inch level in a clear 1 quart jar, with a tight fitting lid. Fill that jar with water and replace the lid, tightly. Shake the jar vigorously and then let it stand for 24 hours. Your soil will settle out according to soil particle size and weight. For example, a good loam will have about 1-3/4 inch (about 45%) of sand on the bottom. about 1 inch (about 25%) of silt next, about 1 inch (25%) of clay above that, and about 1/4 inch (about 5%) of organic matter on the top

Blueberries won't do well with one dripper. They have a shallow, wide-spreading root system. And they need a thick layer of mulch. Consider a soaker line; Or a rat-tail off the supply line which encircles each shrub at the drip line. Even then, you will have to move the rat-tail each year to deal with the expanding rootzone. Yes, Ts will work. Get one of the freebie booklets at your local box store. And no, you don't have loamy soil. You have something more like potting mix. So, yes, sprayers make sense. Just as with drippers, you should not exceed the supply -- the combined water pressure and the diameter of the supplyline. (That freebie booklet will help you figure it out.)

Don't think it's "new" been here for years (prior to buying the home). So maybe to be safe, I'll hit up the local HD and line it with thick plastic... THANKS!