Brain disorders can also have an effect on the display of delta waves. Parkinson's disease, schizophrenia, and narcolepsy are all characterized by changes in delta wave activity. Some drugs and chemicals have been shown to impact the brain's delta waves.
Pruning advanced ornamental trees. Now's the time... Generally speaking an ornamental tree is one that is grown for its decorative looks and not for food. Winter is the perfect time to prune deciduous ornamental trees, as their structures are dormant. Inside the tree though, important processes are underway.
Ornamental Grass. Ornamental Grasses are a large family of beautiful perennial plants that add texture, color and movement to the garden. Ornamental grasses, like conifers and other evergreens, also provide interest in the fall and winter landscape, especially when backlit by morning or afternoon sun.