Landscaping
In 1992 six goals were established to guide the stewardship of Spring
Island:
1. Safeguard the environmental integrity of the Island.
2. Provide maximum plant and wildlife diversity.
3. Ensure the needs of wildlife species are met (including managing
for overpopulation of species such as deer when necessary).
4. Create an aesthetically pleasing environment.
5. Provide for low impact recreation (hiking, horseback riding, biking,
bird watching, fishing, nature photography, kayaking, camping).
6. Provide education and research opportunities.
Landscape Philosophy
Landscaping on Spring Island should not be thought of as added beautification,
but rather as another part of the home and the Island. Like the home
itself, the landscape can create outdoor rooms with natural screens
for walls, with trees and trellises forming roofs. Recreational facilities
should be extensions of the home that are designed as such from the
outset. All drives, walks, walls, parking and garages should be viewed
as an integral part of the home and homesite and be made part of the
unique design.
Preferred is a natural garden, not suburban or finely
manicured (for example, yaupon, wax myrtle, sparkleberry and sassafras
growing together under an oak and pine overstory). Also acknowledged
are homeowners who are horticultural enthusiasts who may want a more
structured garden immediate to the home, leaving the natural setting
beyond so that the formal garden fits inconspicuously into the Spring
Island nature preserve.
The site plan and landscape design should
be conceived with these principles in mind:
1. Providing wildlife
habitat
2. For Cottage Sites: providing a natural filtered view that
provides privacy and frames the view of the home from adjoining homesites,
roads, golf course and ponds and filters the view of the house from
offshore
3. For Estate Sites: minimizing the visual intrusion of man-made
elements into the nature preserve by providing natural screening that
filters the view of the home from adjoining homesites, roads, golf
course and waterways
4. Selecting native plant species or using those
species that have historically been used in the Lowcountry
5. Conserving
water
6. Mitigating areas disturbed during the construction process.
Cottage Sites
For the cottage sites, a garden should reinforce the
sense of place of its neighborhood. Unlike the larger Estate Sites
within the nature preserve, Cottage lots do not have nature curtains
(landscape buffers that hide the houses from view and preserve wildlife
corridors). Instead homes are seen from the road and have filtered
views from neighboring lots. Plantings or existing vegetation should
be managed to provide privacy and smaller scale wildlife habitats.
Additional plantings might be required by the HRB to screen the house
from view.
The cottage gardens should reinforce the sense of place
of their surroundings. They are not simply surrounded by the "wilds" of
the nature preserve like the larger Estate Sites. Instead, their context
might be a horse pasture, a manicured sports garden, a maintained
orchard, a cultivated field, or a clipped golf course fairway. As
a result, their design can be more structured.
Estate Sites
On predominantly wooded estate lots, the nature curtain
setback corridor is 50’ from the property line at the road and
25’ from each side property line. Only selective cutting may take
place within this setback. Underbrushing or clear cutting is not
permitted. The nature curtain setbacks along the side property
lines end 75' from the edge of the river, marsh, pond or golf course
(the amenity side). This area can be part of the "Vistas" (see
guidelines on "Vistas" within this section). This offset
from the edge of a site amenity allows flexibility in locating
the selective framed views.
An owner may request approval for selective
cutting of small openings in the nature curtain. The HRB will review
the request submitted with the landscape plan in the approval process.
Approval may be granted after the home is framed if the purpose
of selective cutting is to increase air flow, to remove competing
understory from specimen trees or shrubs, to remove noxious plants
such as poison ivy, or to replace a monoculture of plant species
with plantings that improve the wildlife habitat and plant diversity.
Even in wooded areas, the addition of native screen planting between
the home and adjacent lot lines may be needed to enhance or establish
a nature curtain. (See Nature
Curtain Management).
On
Estate Sites with an existing open field or where woods and fields
meet the nature curtain becomes a planting strategy unrelated to
property lines. A planting plan would be developed which is tied
to the siting of the house and would include the addition of vegetation
to create an effective screen for the home. This may mean siting
the home discreetly behind an existing hedgerow or near a stand
of existing trees for scale, then adding trees and shrubs to create
a filtered view of the home from neighboring lots and thoroughfares.
These screen trees, when placed properly, could also have the additional
function of shading the house or the site.
The landscape plan for
each homesite should reinforce the Land Management Plan being implemented
by the Spring Island Trust for the rest of the nature preserve.
Each lot is a part of the ecosystem of Spring Island, and the manner
in which each lot is “managed” or landscaped will play a significant
role in the preservation of this sense of place. Every property
should be viewed as a whole with the goal of creating a land management
plan that provides biodiversity.
Mulching
A preferred alternative to lawn areas that require significant
amounts of water are mulched planting beds. Mulch must be organic
material such as shredded aged wood mulch, compost, or pine straw.
Mulch covers and cools the soil, minimizes evaporation, reduces
weed growth, improves soil composition as the organic material decays
and helps to reduce soil erosion. For the best results, mulch should
be applied two to three inches deep.
Mulch can be purchased commercially.
A contractor can be hired to grind on site the tree debris created
when the homesite is being cleared for construction. This fresh,
coarse mulch can be used to surface paths or driveway. Shredded
mulch should be stockpiled to age and later used to mulch planting
beds. Both of these recycling practices eliminate the addition of
debris to the landfill.
Acceptable Landscape Management Practices
The landscape plan for
HRB review and approval should address not only introduced landscape
materials, but also how the existing woods or fields will be managed.
Land management practices such as disking, mowing, selective tree
thinning, undisturbed successional areas and, in old fields, the
option of planting a seasonal wildlife crop, should be identified.
Controlled burning is not permitted. The plan should create a mosaic
of one, two and three year successional stage vegetation along with
undisturbed areas.
Mowing is the best practice where burning cannot
be done. It is a manageable method of maintaining a mosaic of different
aged plants as the understory vegetation.
Selective tree thinning is used to alter the species composition and density of the tree
canopy.
Undisturbed successional areas: Massed areas should be left
untouched to provide areas for feeding, breeding, nesting and resting
for animals.
Snags are dead or dying trees. If they are not a hazard
to the home or drive they should remain. Standing snags provide
a food source for woodpeckers. They often have cavities that are
nesting places for birds and animals. Trees that have fallen are
also good cover for animals and are an important part of the natural
process of soil regeneration.
Bird Boxes: If your homesite does
not have several snags you could introduce homes for cavity nesters.
The Mobley Nature Center library has books that identify the type
of box for the bird that may be in your type of habitat and how
to build it.
Water: Existing ponds, low spots and ditches that
are occasionally wet, bird baths or small garden pools and fountains
provide another creature comfort for birds, butterflies, mammals
and amphibians. Water features and low areas containing stagnant
water are potential breeding grounds for the mosquito population.
Plant low areas with vegetation which is conducive to dragonfly
breeding and nesting. Water features should be incorporated into
the landscape maintenance program. Keep water pumps running. Designing
water features so that they can be drained is also a viable option.
Small pools and birdbaths should be routinely cleaned when in use
and put away when the home is not being used.
|