Question
I am buying a home that has a yard with most likely terrible soil that is filled with spotty grass and rocks.  There is also a medium sized tree that I would like to have removed.  I like in San Diego, what would be the best way to prep the lawn to plant grass along with some bird of paradise plants and a variety of palm trees.  After I have the tree stump removed would the roots cause any problems?  What should I do to get the soil ready?

Answer
Hi Jim, Have the tree removed first.  We don't want newly prepared soil compacted from the weight of any tree removing equipment.  Then you need to determine whether you will be seeding. sprigging or sodding your lawn.  Sodding can be done anytime, but seeding or sprigging has optimal times depending on the type of grass you are using.  Make a trip to your local independent garden center and talk to an expert about grass varieties and timing.  You local expert is going to be familiar with your soil type and what to add for best results.  We don't want to till and loosen soil months before its time to plant to prevent erosion.  At the proper time, till the soil and mix in sand and/or organic matter (based on your soil type and the local expert's recommendation) and adjust your pH to 6.5 if needed.  While you are at the garden center, talk to them about the types of palms and plants you want to grow and what to add to the soil.  Palms need higher amounts of magnesium, sulfur and other micro-nutrients than you get in most fertilizers, so make sure you get good care instructions from your garden center based on the type of palm.
The roots of the tree will not be a problem.  You may for a while have some sprouts come up from the roots (depends on species). Paint a little glyphosate herbicide on the leaves with a brush and it should take care of the problem without harming surrounding plants and grass.  Jim