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- They thrive in a variety of soil types but prefer soils with a pH of 5.6 to 7.2. At full maturity, Acrous americanus reaches approximately two-four feet tall and 24 inches wide.
Here's how your plants will look on arrival. All plants are dormant with no leaves or foliage.
Acorus americanus (Sweet Flag)
Acorus americanus (Sweet Flag) is a flowering, perennial grass native to the northern United States and Canada. They can be identified by their bright green sword-like leaves that encase one another at their base where they emerge horizontally from the rhizomes of the plant. The blade-shaped foliage has a spicy, citrusy scent when crushed or bruised. Depending on location, the spadix-like, flower of this wetland species, whose color can vary from cream to brown to green, blooms between May and August followed by small, dark berries. These grasses found around lakes, ponds, marshes, rivers, streams, and the edges of other wetland and boggy areas. They thrive in a variety of soil types but prefer soils with a pH of 5.6 to 7.2. At full maturity, Acorus americanus reaches approximately two-four feet tall and 24 inches wide. They spread at a moderate rate as the rhizomes form a dense mat along shorelines and banks. This trait makes them great for retaining wetland borders. They thrive in USDA growing zones 3-6 and require full sun exposure. When planting this species, allow for 12-18 inches of space between each plant. Native Americans are said to have used the rhizomes of this grass for medicinal purposes. The plant is also said to repel insects, thanks to its spicy, citrus aroma. This species is often confused with Acorus calamus as they are very similar in appearance. In fact, its prior classification was Acorus calamus americanus. The primary difference between these species is that Acorus americanus has two-six prominent veins along the length of each of its leaves where the calamus species has only a single prominent thread on each of its leaves. Another distinguishing characteristic is that the americanus species has a fertile diploid that produces fruit with two-three viable seeds.