Surely in the vastness that is Los Angeles County there must be at least one houseplant nursery that sells soil expressly aimed at owners of these plants. Have you tried finding recipes for such soil in garden books and maybe making your own. If you have such large quantity of plants that you need to buy such in bulk, then it would pay you to find a recipe for what plants you have. Remember, some plants require special attention to what's in their soil. For the most part though, commercial potting mixes is the most efficient and I might add...safest way to go. It can provide a formulation that house plants prefer in that it provides all the nutrients they need for a specific time. Here is one recipe you might consider: blend equal amounts of coarse sand, loam or good garden topsoil and peat moss, leaf mold or fir bark. To each 2 quarts of this mix, add 1/2 cup each charcoal and perlite. Each of these ingredients has a purpose. The topsoil contains particles of clay that holds fertilizer and makes it availablefor plant roots. Sand, perlite and leaf mold hold air around the roots which is essential for good plant growth. Leaf mold also provides nutrients. Charcoal bits keep the soil 'sweet'. Peat moss gives good structure to the soil and holds moisture. Any soil you make yourself must be sterilized. The loam or topsoil may contain pests and/or disease and weed seeds. Sterilizing takes care of this. To sterilize soil: thoroughly dampen the mix with water. Spread it out no more than 4 inches deep in shallow ovenproof pans. Place in a 180ºF oven and bake for at least 2 hours. Prepare to have your kitchen stink. An alternate method is to cover the pan with kitchen foil or clear baking wrap and seal. Insert a cooking thermometer through the centre of of the covering into the soil....but not touching the pan. Place in oven and heat until the soil temperature reaches 180º. Keep the temperature at that reading--no higher--for 30 minutes. Remove from oven and let it air for a few days. Store in paper or plastic bags.

There are plenty of Salvia growers but you might want to rethink using them for cutflowers. They're not the best for that purpose; they "shatter" quickly. Take a look at some of these: CALIFORNIA NATIVES FOR CUTTING For flowers, foliage and/or berries Arctostaphylos MANZANITA Artemisia californica CALIFORNIA SAGEBRUSH Bloomeria crocea GOLDEN STARS Brodiaea elegans HARVEST BRODIAEA Carpenteria californica ÂElizabeth BUSH ANEMONE Cercis occidentalis, C. o. ÂAlba WESTERN REDBUD Chlorogalum pomeridianum AMOLE, SOAP PLANT Clarkia amoena GODETIA Clarkia unguiculata ELEGANT CLARKIA, FAREWELL-TO-SPRING Collinsia heterophylla CHINESE HOUSES Comarostaphylis diversifolia SUMMER HOLLY Corethrogyne (Lessingia) californica CALIFORNIA ASTER Dichelostemma ida-maia FIRECRACKER FLOWER Dichelostemma pulchellum BLUE DICKS, WILD HYACINTH Dudleya pulverulenta CHALK LETTUCE Epipactis gigantea GIANT STREAM ORCHID Eriogonum arborescens SANTA CRUZ ISLAND BUCKWHEAT Eriogonum giganteum ST. CATHERINEÂS LACE Eriophyllum confertiflorum GOLDEN YARROW Eriophyllum lanatum arachnoideum GOLDEN YARROW Galvezia speciosa ISLAND SNAPDRAGON Hesperocallis undulata DESERT-LILY Hesperoyucca whipplei CHAPARRAL YUCCA Heteromeles arbutifolia TOYON Iris Pacific Coast Hybrids PCH IRIS Isocoma menziesii COAST GOLDENBUSH Juncus balticus BALTIC RUSH Juncus effusus COMMON RUSH Juncus mexicanus MEXICAN RUSH Juncus patens RUSH Juncus xiphioides FLAT-BLADED RUSH Leymus condensatus GIANT WILD RYE Leymus triticoides BEARDLESS WILD RYE Lilium "Corallitos Hybrids" CORALLITOS LILIES Lilium rubescens CHAPARRAL LILY Madia elegans ELEGANT TARWEED Mahonia ÂGolden Abundance G. A. BARBERRY Mahonia ÂSkylark SKYLARK MAHONIA Melica californica CALIFORNIA MELIC Mimulus aurantiacus and Hybrids BUSH MONKEY FLOWER Monardella crispa WAVY-LEAF DUNE MINT Monardella villosa COYOTE MINT Myrica californica PACIFIC WAX MYRTLE Perityle incana GUADALUPE ISLAND ROCK DAISY Philadelphus lewisii californicus CALIFORNIA MOCK ORANGE Polystichum munitum WESTERN SWORD FERN Rhamnus californica COFFEEBERRY Ribes aureum gracillimum GOLDEN CURRANT Ribes sanguineum glutinosum RED-FLOWERING CURRANT Solidago californica CALIFORNIA GOLDENROD Solidago spathulata COAST GOLDENROD Symphoricarpus SNOWBERRIES Trichostema lanatum WOOLY BLUE-CURLS Triteleia hyacinthina WHITE HYACINTH BRODIAEA Triteleia laxa PRETTY FACE, TRIPLET LILY Vaccinium ovatum EVERGREEN HUCKLEBERRY Wyethia angustifolia NARROW-LEAF MULE EARS Zigadenus fremontii STAR-LILY Joe

Ky31 doesn't spread by rhizomes or stolons, but it does spread by tillars. The tillars will eventually become independent of the main grass plant and then produce tillars of their own. I just think of tillars as short rhizomes. Again, KY31 will handle your dogs abuse. My female dog does urinate in the grass and it does damage it as expected, but it recovers quite well. in fact, it's proving almost impossible for me to kill. When I first planted KY31, I didn't know anything about lawn care. It was my first home and when I moved in, the back yard was basically all mud. I picked Ky31 because it was the cheapest. After having such great success, and learning more about lawn care and turf, I've become somewhat of a lawn care nut. I renovated my front lawn (that was mostly ryegrass and weeds) with Kentucky Bluegrass and Turf Type Tall Fescue. That looks amazing in comparison to my backyard KY31. Late summer and early fall, I tried torturing the KY31 backyard. Repeated scalping during the heat, not watering in the heat of summer, rough rough raking with a detaching rake and shovel, etc. this was in preparation to overseed Titan RX, an improved variety of tall fescue. after the overseeding on top of the overly abused KY31... The KY31 has survived. Hardly any of the Titan RX is present in the lawn. the seedlings were all choked out of existence. im serious, I think KY31 will survive a nuclear apocalypse.

@norm1977, wow, I hadn’t expected a response or comment anymore at this late stage, but it’s always nice when someone checks in! On the whole, the lawn is holding up great. One of my dogs passed away in 2019, 😢 so it’s only taking abuse from one instead of two now, and there are definitely places along the edges where it has died because those are regular pee spots for my boy. But I expected that, and they’re not big areas. Right now a good portion of the lawn is dormant for winter, especially where it’s more exposed when there’s the occasional frost like we got last week. It is one of the best garden investments I made!