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Backyard Bog Garden Basics

A bog is a natural area of soft, waterlogged ground. Bog gardens typically showcase carpets of velvety moss and lush vegetation. Bog gardens, large or small, can be great fun for the whole family and the perfect backdrop for attracting wildlife to your back yard.

Materials for Building Bog Gardens

Media for making a bog garden include: loam, sand, grit, rich mulch (preferably organic), moist acidic soil and peat moss.

Moist clay soil combinations make for easier bog garden maintenance, whereas light, quick-draining soils require more frequent watering. You'll also need soaker hoses or a handy water supply for bog garden upkeep.

Bog Garden Design

As the name suggests, bog gardens simulate a natural bog or marshland environment. The ideal milieu for a bog garden is any low-lying, sunny spot where water collects, such as a pond, or maybe a water-logged area of your backyard, where moss and marsh type plants, including pitcher plants, thrive naturally. The perfect spot for a bog garden is alongside a water garden.

Bog Gardens: Perfect Plants

Planting bog gardens is easy and great fun. For best effect, group plants in small, irregular clusters of up to five of the same plant types. Vary colors and heights, with large pitcher plants at the back of the bog garden.

Pitcher plants such as sarracenia purpurea, sundew and Venus's flytrap are particularly suited to a marshy bog garden environment. Don't over-plant and always leave a space between plant clusters.

Fun Pitcher Plants For Bog Gardens
How about adding a touch of flamboyance to your bog garden with some darlingtonia californica cobra pitcher plants? These long, tubular pitcher plants have lifelike bulbous green heads and red tongues!

Other moisture favoring marsh plants and pitcher plants that thrive well in bog gardens include:

bog orchids
bog gentians
butterworts
ferns
gunnera
hostas
irises
japonica
nightshades
primulas
rheum
rodgersia
sweet flag
yellow skunk cabbage
zebra grass.

For back-to-nature bog gardens, transplant some wild flowers and plants from nearby riverbanks, or from alongside streams and ponds. Replicate the marsh environment in your bog garden and these plants should continue to flourish in their new habitat.

Bog Gardening Basic Requirements

Bog gardens prefer moist, marsh, swampy conditions in a sunny location with light shade. The soil should be kept moist and swamp-like at all times. Bog gardens should never be allowed to dry out or the soil to become compacted.

Step-by-Step Guide to Setting Up Bog Gardens

Constructing the Bog Garden

The size of your bog garden will depend on the available space. However, an area of around twelve square feet is usually adequate for most styles of bog gardens.

Follow these simple step-by-step instructions for constructing a bog garden:

Use string or rope to outline the area of your bog garden. Curved bog garden borders with soft edges always looks better than formal, straight lines.
Dig out the existing topsoil to a depth of approximately five inches; set the topsoil aside.
Next, dig to the required depth of the bog garden; 18 to 24 inches deep (no deeper). Discard the soil.
Line the excavated trench with two layers of heavy duty plastic; cover the base of the hole first. Press the plastic firmly against the sides of the bog garden.
Trim round the edges of the plastic; making sure that the covering does not protrude above ground level. Secure the corners about two inches from the top.
Pierce fine holes in the base to allow for drainage.
Prepare a bog soil mixture consisting of two parts peat moss, one part organic compost or manure, and one part loam (mixture of sand, silt, clay and humus or builders' rubble). A twelve-foot square bog garden takes roughly three bales of peat moss and five bags of compost. Add the top soil to this mixture and fill the trench to within an inch of the rim.
Level out the surface. Place a layer of hardwood mulch on top to aid moisture retention.

Bog Gardens Top Tip
When digging the foundations for your bog garden, make one end a few inches deeper to accommodate larger, authentic marsh pitcher plants. For added impact, group smaller bog plants at the shallower end of the bog garden.

Terrarium Bog Gardens

If space is a problem, use a large container such as a ten-gallon fish aquarium or terrarium to create a miniature, movable bog garden. Cover the base with small stones and fill with sphagnum moss mix.

Make sure that the terrarium is kept watered at all times and that there is adequate drainage from the base of the container.

Bog Garden Accessories

A path of rough-hewn stones or irregular-shaped stepping stones look great winding through a luxuriant bog garden. For added interest, lay the path on two levels. Use it as a natural divider for different plant varieties.

Easy Maintenance Bog Gardens

Bog gardens are relatively low-maintenance, provided that moisture levels are regularly maintained. Use soaker hoses, concealed below the surface of your bog garden, to ensure that your bog garden never dries out.

A top layer of pine mulch will also help maintain a swamp-like habitat. Dry climate bog gardens should be refilled with water, as required, during summer months.

Dead-head and cut back dead leaves to within two inches of ground level and avoid using fertilizers for carnivorous bog garden plants.

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