Worker Adjustment and Retraining Notification Act (WARN) Currently selected Victims' Economic Security and Safety Act (VESSA) State Services - Prevailing Wage Requirements
It is a weed if you do not want it in your garden. In England, the Spanish bluebell is invasive and will hybridize with the English bluebell.
Invasive Plants in Pennsylvania: Russian Olive and Autumn Olive (PDF | 223 KB) Pennsylvania Department of Conservation and Natural Resources. See also: Invasive Plants fact sheets (scroll to view) for plant species (trees, shrubs, vines, herbs and aquatic plants) that have impacted the state's natural lands.