restkosher.blogg.se - Rain garden

Plants that are likely to occur in wetlands or adjacent to wetlands.Wetland ‘Obligate’ species that are flood tolerant as they will persist in average years and flourish in wetter years.Grasses, Sedges, rushes, wildflowers, ferns and shrubs that have an ‘Obligate’ to ‘Facultative’ designation.The zone most closely resembles a Cultural Meadow or a Cultural Thicket community, depending on the mix of grasses, herbaceous material, shrubs and trees utilized.Ī simplified schematic depicting the three primary zones associated with soil moisture levels and the appropriate plant species selected for each zone's specific soil characteristics, best adapted to the area's growing conditions. The ecology of this zone is terrestrial due to its elevation in relation to the filter bed. The ecology of this zone is a transition from the Mineral Meadow Marsh/Beach-type community to an upland community. This zone is inundated less frequently (2 – 100 year storm events) and has periodically high levels of moisture in the soil. Often referred to as the flood fringe area. This area is frequently inundated during storm events, and is well-drained between rainfall events. Often referred to as the extended detention or shoreline fringe area. Ground Cover/ Vines - 10 cm to #1 or 1 gal. Perennials/Grasses - 15 cm to #1 or 1 gal. Plants should be container grown, balled and burlapped or wire basket.īelow are recommended plant sizes for planting rain garden features:Ĭoniferous Shrubs / Broadleaf Evergreens - 40 cm spread (roughly #3 or 3 gal. Seed planting is not recommended for rain gardens. Plant material per Canadian Standards for Nursery Stock, Eighth Edition. Smaller containers may be easier to purchase, transport, and plant, but it may take longer to have a fully vegetated garden. Since rain gardens are typically smaller scale homeowner projects smaller stock plants may be considered. Otherwise, choose taller plants for the back of the garden tapering the height down to the front of the garden. If the facility is intended to be relatively inconspicuous, then the tallest plant material should be placed into the deepest part of the rain garden.

Vegetation must also be capable of tolerating prolonged wet and dry periods unless an irrigation plan is in place.

The aesthetic can range from very naturalistic to quite formal, depending on the planting plan.

A variety of plant material can be selected based on the desired aesthetic, including turf grass, ornamental grasses and perennial flowers, shrubs, and trees.

The design of a rain garden allows for several different planting zones. weeding.įor a table summarizing information on planning considerations and site constraints see Site considerations. After this establishment period, the garden should only need simple maintenance, e.g. In the first two years, the plants will need watering to ensure they become established. They can be planted with a variety of vegetation including shrubs, grasses and flowers.Ī well-designed rain garden can be maintained with minimal care, which is a great marketing point for persuading homeowners. Rain gardens are a great option for residential LID retrofits because homeowners can customize the garden to suit their desired styles. When looking at potential locations, look for low areas where runoff can be easily be directed into the garden. Location is very important to a functioning rain garden. Within the rain garden, special types of soil, ' filter media' or soil amendments increase the amount of water absorbed by the garden and infiltrated into native soils. By landscaping areas to include a surface depression of approximately 150 mm, rain gardens allow runoff from residential properties to collect and to easily absorb into the ground. However, their infiltration and bioretention functions are much greater than normal gardens.

A simple overflow swale to another area of the garden.A splash pad of stone to prevent the downspout flow from eroding the soil.

The fundamental components of a rain garden are: Community design/build projects for raising awareness about stormwater capture and functional landscapes.Capturing the flow from disconnected downspouts.