Slender Vervain is a perennial that spreads by rhizomes and is native to South America. Is an annual north of zone 7 but needs winter protection in that zone. It has naturalized from southeastern North Carolina to Florida and is very tolerant of heat and drought. Plant in well-drained soils in full sun as it is a good choice for a sunny, hot perennial border or a container. It will not tolerate wet winter poorly drained soils.
Curated pairwise relationships between this plant and others in the library — who feeds
whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.
No curated interactions recorded for this species yet.
Also noted by NC State
Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell
apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.