Shopping for a water softener: 1  Salt-based units need to have the salt replenished on a regular basis, usually at a cost of anywhere from $2-$15 a month depending on the cost of the salt ($3-$8 per 40-pound bag) and the amount of salt used by your system.
Milkweed is the common name for perennial, herbaceous plants of genus Asclepias, family Asclepiadaceae (from Greek physician Asclepius). One hundred species occur worldwide; 13 are native to Canada.
Swamp milkweed (A. incarnata) Perennial for sun or part shade, moist locations, this milkweed bloooms in pink or white on three to five foot tall stems. Swamp milkweed, you will not be surprised to hear, is a great choice for swampy, poorly drained areas.