The reason for hill landscaping may
range from aesthetic to utilitarian,
this may definitely add visual interest
to your garden if you vary contours and
levels or make dangerous steep hill
easy to navigate by altering the
grade.
Make hill's correction is a relatively
simple job on a site that is pretty
much flat but the slope of a hill may
be severely slopped and this may create
special problems for the landscaper.
The most important of them is that the
slope may carry water where you
wouldn't prefer it to go and could
create swampy areas in the yard,
usually at the base of the hill's
slope.
Easy
slope. Slopes less than 1-foot
vertical to 4 feet horizontal (25%):
Such type of slopes require no special
landscape treatment and solutions for
circulation should strive for
simplicity without steps or walls
unless absolutely necessary - riding
and gang mowers may be used safely and
efficiently.
Moderate Slope. Slopes from
1-foot vertical to 4 feet horizontal
(25%) to 1 foot vertical on 3 feet
horizontal (33%). Gradients of that
kind create banks where only hand
movers are manageable. Plant grass
where accessible. Avoid single
specimens of trees and shrubs on these
grades in grass due to the problems of
mowing around them - use only in groups
or bed plantings. Try showing bed line
or mowing limits.
Steep Slope. Slopes from 1 foot
vertical to 3 feet horizontal (33%) to
1 foot vertical on 2 feet horizontal
(50%). Gradients of that kind create
banks where only hand movers are not
easily manageable. While dealing with a
severely sloped site remember to
consider where you want excess water to
flow. It may not matter on a large lot,
because there is plenty of space for it
to move through but if it's a small lot
- be wary of neighboring properties,
vegetation and existing catch
bases.
If the area you are
landscaping in has a steep slope, build
terraces or steps made of logs or old
railroad ties across the slope to
divert water away from slopes and
prevent soil erosion. Between the
steps, spread a thick layer of wood
chips to protect the soil. If the slope
is gentle, seeding grass may be enough.
Use splash guards on gutter outlets to
help reduce erosion at the foundation
of your home.
Severe Slope. Slopes 1 foot
vertical to 2 feet horizontal (50%) and
steeper. Vegetation and plants,
including grass and groundcovers, are
difficult to establish and demand
frequent and skilled maintenance to
prevent erosion and
unsightliness.