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The first rain gardens were created to mimic the natural water retention areas that developed before urbanization occurred. The rain gardens for residential use were developed in 1990 in Prince George's County, Maryland, when Dick Brinker, a developer building a new housing subdivision had the idea to replace the traditional best management practices (BMP) pond with a bioretention area.
Currently these plants are commonly cultivated in US Department of Agriculture hardiness zones 7–10. Rain lily breeders may develop cultivars with greater cold hardness. Generally rain lilies are sold in nurseries already potted up. This is of benefit since the growth cycle is not interrupted. Rarely (and not ideally), dried bulbs are marketed.
A bioretention cell, also called a rain garden, in the United States. It is designed to treat polluted stormwater runoff from an adjacent parking lot. Plants are in winter dormancy. Bioretention is the process in which contaminants and sedimentation are removed from stormwater runoff. The main objective of the bioretention cell is to attenuate ...
When your rain garden is ready for plants, you do not have to use native plants, but it is good for the environment to do so. Some plants to consider are milkweed, astilbe, New England Aster ...
Like other rain lilies, their common name refers to their habit of blooming soon after a heavy rainfall. They are widely grown in gardens as annuals and as container plants, although they will overwinter in warm climates. Zephyranthes carinata are often incorrectly referred to as Zephyranthes grandiflora, especially in horticulture.
The native plants cultivated in wildflower gardens often have deep roots, and therefore are effective selections for absorbing surface runoff and allowing the water to infiltrate into the local water table. [9] Wildflower gardens cultivated for capturing runoff in this mode are denominated "rain gardens".