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.
Milkweed species with whorled, narrow leaves are typically more toxic than species with broad leaves. Labriform milkweed (Asclepias labriformis), the most toxic milkweed, grows naturally in portions of USDA zones 4 to 8.umans can eat milkweed, but its toxicity depends on its species, age, how it is prepared and how much is eaten. Milkweed is the plant choice of monarch butterflies, and milkweed can be planted to attract monarchs.