I live in Las Vegas about an hour from Pahrump. I can tell you that here we have different soil types depending what part of town you are on. In our old house we had a thick layer of caliche about a foot down but I havn't seen any at our new old house. We have thick clay type soil here while it was more gravelly at our old house. I suspect Pahrump will have some variety too.

One thing I will guarantee is that the soil will be very alkaline. I don't grow stuff in raised beds in imported soil but I do amend our clay with a lot of horse manure and sand and gravel to loosen up the clay. I add soil sulfer but generally I think it is much better to just grow plants that tolerate alkaline soil and there are a lot of great ones. Generally plants native to the southwest including texas, arizona and california are going to handle the soil fine.

I used to grow a few plants like pyracantha that don't like the alkalinity and would get chlorosis every year and I'd have to treat with iron but that gets old. Now I'm enjoying all the great plants that thrive here without me having to amend like crazy in order for them to survive.

Good Luck, Maria

Well, you asked for it so here is my thoughts about gardening in Pahrump. (I'm taking a deep breath...LOL....okay here is my opinion) Some people laugh at that thought but you can garden out here. Our soil is described as mineral soils that are low in organic matter & nutrients. They are somewhat alkaline and many are saline; as well...and you know this doesn't help with growing anything. Also clayey & very poorly drained. Some areas have caliche soil which needs to be taken out and replaced with compost,etc. I have native desert plants in my yards...the holes were dug and soil was replaced with cactus soil mix.
Pahrump does have Masters Gardening Program too-I will get the phone number for you later (can't find it for some dumb reason now).
Our growing season is about 265 days...1st average day of frost is the early November and our last frost is usually in early March. Winds are the biggest problems here...so you will need to build strong protection for your plants too.
Pahrump is zoned 8A. I just noticed I have us in zone 8B...hmmm. We are in the south end of town at 2965 elevation. My plants that are in the ground include are red yucca, texas privets, rosemary, lavender, mulberry trees, salvia, joshua trees, a palm tree (think it's a Mexican Blue), russian sage, pomergranete, desert willow tree, apple, appricot, and peach trees. Also have an olive tree, chaste tree, mondel pine trees.
I have raised beds for my vege garden and a small half moon rose garden. I grow tomatoes, green peppers, hot peppers, lettuce (romaine and spinach), herbs (basil goes crazy out here), cucumber, cantelope and more I can't think of.
I also have alot of container pots full of roses, pansies, bulbs (tulips, crocus, daffodil),etc...I have honeysuckle and virginia creeper vines growing on my fence.
We have a drip system in the yard. It's used mainly in the summer when it is blazing HOT, HOT, HOT out here.

FYI: I bought a wonderful book called NEVADA Gardener's Guide by Linn Mills & Dick Post. It is very informative and has really helped me in every area of gardening here.

Beca