Planting too deeply will most likely prove fatal. Preparing the soil and adding organic matter is the key. One of the easiest ways to prepare beds for any flower is buy the specially prepared landscape mixes from the local garden center. You've most likely seen public buildings, apartments and malls with some of the prettiest displays in what was a horrendous summer. Organic matter helps loosen tight clay soils for better water penetration, aeration and good root development.
Organic matter is important on the Coast and in other locales that have sandy soil.
Sand is made up of the largest particles, allowing for quick drainage and leaching of nutrients. Organic matter improves the water-holding capacity and helps retain vital nutrients. If temperatures may are still warm when planting, make sure to keep the panolas watered and apply a layer of protective mulch. Panolas are heavy feeders. Feed monthly with a light application of slow released fertilizer.