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.
HTML version of COSEWIC Assessment and Status Report on the Four-leaved Milkweed Asclepias quadrifolia in Canada COSEWIC Assessment and Status Report on the Four-leaved Milkweed Asclepias quadrifolia in Canada (2010-09-03) (PDF format, 732.53 KB) Get Adobe Reader Contact Person(s)