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, white flowering (Asclepias incarnata 'Ice Ballet') Clusters of small white flowers on plants which grow 32-40 high. Usually blooms late June through July. 'Ice Ballet' Swamp Milkweed is a choice nectar plant for numerous butterfly species (including the red admiral shown here).ome northeasterners assume common milkweed to be the only milkweed species which exists. Actually, over 100 species of Asclepias grow in the USA, with over 200 different species growing worldwide. Common milkweed is not the only Asclepias species which can be utilized as a food source for the monarch caterpillar.