|N. domestica leaves- Wikimedia|
|Heavenly Bamboo berries - Wikimedia|
There are clues to look for when planting exotic (think non-native) plants. "Needs no care," "grows in sun and shade," "grows in any soil," should all be a warning that escape is likely. "Heavenly" grows readily up to 6-8 feet although there is a dwarf variety of 3-4 feet. It spreads out by rhizomes, seeking to grow beyond the gardener's plan, and can cover the ground quickly like bush honeysuckle. Nandina can take heat and cold, from −10 to 110 °F. It grows in sun or under forest canopies and near forest edges like bush honeysuckle and Arkansas is an epicenter for Nandina in forests.
All parts of the plant are poisonous, producing hydrogen cyanide. They are listed as Toxicity Category 4, the category "generally considered non-toxic to humans," but the berries are considered toxic to cats and grazing animals. They generally do not affect birds except when consumed in large numbers by voracious frugavores like cedar waxwings. I recall sampling honeysuckle berries and neighborhood kids mashing them for "tea." These berries potentially could sicken small children who sample them in excess.
|Leaves - Invasive.org|
Fayetteville has just banned planting 18 invasive species in major developments as described here.
Detailed information of Heavenly Bamboo control is at this Forest Service link.