No, the Japanese maple is not invasive. Most non-native plants are not. Many spread or produce seedlings, but they don't take over the neighborhood or show up in natural areas. Here are the U.S. Department of Agriculture's seven simple steps to stop the spread of invasive plants, pests and diseases: buy local, burn local, as pests hide and ride on firewood; avoid planting invasive plants at all costs; don't bring or send fruit, vegetables or any agricultural item unless it has been inspected; cooperate with quarantines; keep it clean — check and wash outdoor gear, tires, vehicles, boats and personal watercraft, even boot tread, to make sure they're free of soil, insects, eggs or plants before leaving fishing, hunting or camp grounds, parks, or wild areas; learn to identify invasive species and report suspicious plants or insects to the Home and Garden Information Center (contact info below); declare agricultural items when traveling internationally. You don't want to be the cause of the next invasion.