1 Solar-powered home water heaters cost $1,000-$3,500 (including installation) but have extremely low monthly operating costs and can be used in any climate, according to the US Department of Energy.2  The cost for a solar heating system can vary widely. Prices vary based on building and system configuration, the type of equipment selected and other factors. 2  Generally it costs less to install a system in a new home rather than remodeling an existing one, although it can be practical to install a solar system while replacing the roof.
Spices and herbs at a grocery shop in Goa, India. A spice is a seed, fruit, root, bark, or other plant substance primarily used for flavoring, coloring or preserving food. Spices are distinguished from herbs, which are the leaves, flowers, or stems from plants used for flavoring or as a garnish.
Noun. 1. herb-a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests. herbaceous plant. veg, vegetable, veggie-edible seeds or roots or stems or leaves or bulbs or tubers or nonsweet fruits of any of numerous herbaceous plant.erb. 1. a flowering plant whose stem above ground does not become woody and persistent. 2. such a plant valued for its medicinal properties, flavor, or scent. 3. Often, the herb.