I. indica is an opportunistic coloniser of open, disturbed habitats. Under favourable conditions of full sun, ample moisture and fertile soil it can grow very rapidly, smothering all other vegetation. Its climbing habit enables it to compete successfully with trees and shrubs on the edges of forests and along riparian zones. Its rapidly growing stolons can form dense mats over the ground. In Queensland, I. indica exists as isolated, small populations scattered along the east coast of Queensland. One of the largest infestations exists on a hillside near Montville/Maleny in coastal south-east Queensland. There is no evidence that I. indica is having an impact on primary production and suggestions that is poses a significant threat to native vegetation are largely speculative. I. indica prefers highly disturbed habitats where the original native vegetation has been fragmented or totally destroyed. For this reason, its environmental impact is probably limited. At some locations, it might be hindering regeneration of native plants and there is little doubt that it can smother native plants on the edges of rainforests. Perhaps most importantly, large areas of I. indica have dramatic visual impact, particularly in the Maleny region which is heavily promoted as a tourist destination. A long-lived (i.e. perennial) twining climber growing up to 15 m high, but sometimes scrambling over low vegetation or creeping along the ground. Blue morning glory's thick, smothering growth is a common sight on many rural roadsides and forest edges. Climbs high into canopies of native vegetation. Creates significant shading hazard for other species. Twining stems choke adjacent seedlings and smother mature plants (Weeds of Australia Biosecurity Queensland Edition). This perennial morning glory has vivid blue flowers over a long season (plants can be seen on an arbor near Dos Coyotes restaurant in south Davis) (Cardoons and other alien invaders).

An exhaustive Google/Google Scholar search did not reveal any evidence of fire promotion or changes to fire regimes, and this defaults to a "no" answer.

It appears to be rare in areas that are subject to constant grazing by cattle but can thrive soon after stock are removed from a pasture (Weeds of Australia Biosecurity Queensland Edition). Seeds a major toxin (CalFlora). An exhaustive Google/Google Scholar search did not reveal any additional evidence of health risk or impacts to grazing systems, and this defaults to a "no" answer.

While this plant can climb and smother other vegetation, an exhaustive Google/Google Scholar search did not reveal any evidence of formation of thickets that block passage, and this defaults to a "no" answer.