Venom's thicketgrowth

Venom's thicketgrowth was a spell that could only be cast by dragons.

Effects
When cast, this spell caused the primary vegetation in a area to spread to an adjoining area. The spell did not kill any existing vegetation in the area, but it usually withered within a year of the spell being cast due to being overwhelmed by the presence of the new primary vegetation. It was often used in combination with Venom's brambletangle.

Casting
This spell required only a verbal component.

History
This spell was created by the green dragon Venominhandar. It was often used by green dragons in Cormanthor to build their lairs. Legend had it that Venominhandar used this spell along with Venom's brambletangle to alter the Emerald Vale into the Tangled Vale.