What is the difference between bog / marsh plants and moisture loving plants?
There is no difference! Many moisture loving plants are ideal for planting areas where the soil remains wet but not submerged for example in the shallow areas of a wildlife pond. It is worth remembering most marginal plants will happily grow in these conditions, but bog plants will not do well on marginal shelves. These plants will add more colour, extend the flowering season around the pond and look great next to the traditional marginal plants
What is a pond marsh area?
A bog or marsh area should not be confused with a marginal planting area of a pond which is usually a submerged shallow shelve. A marsh area in water garden terms is an area of soil which is consistently damp and often shaded but not completely submerged or water logged. A few marsh plants will tolerate being on a marginal shelf if the basket is higher than the water level. the majority of marginal pond plants will flourish in a marsh area. However MOST marsh plants will NOT survive if submerged into a marginal area..
Creating a marsh area.
A marsh area can be created in many ways. it could be an area on the side of the pond or the gently slopping edges of a wildlife pond which is higher than the water level. Alternatively you could create a whole separate marsh area in part of the garden which naturally retains high moisture levels. An artificially area can also be created with a liner, using some drainage holes to stop it water logging. However the important element is the plants must not be consistently submerged or water logged.
Marsh Planting & Care.
These plants are ideally suited for planting directly into soil around the pond edge, maybe where the pond overflows, or in a purpose built bog garden made from surplus pond liner. When they are to be placed in a beached area it may be desirable to plant into an aquatic container that is then directly buried into the gravel. Some bog garden plants can have their root balls wrapped in Hessian with some soil, then placed into the gravel. Ensure that these plants are not planted in areas that are likely to be submerged during the winter. Take care to protect less hardy plants over winter by leaving their dead leaves on or covering with straw for protection, especially Gunnera.