Bringing the Best of Nature Home
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One of the most
popular and exciting new trends in gardening today is water
gardening. You don't need either an estate or a gardener to
have one. Any water-tight container, such as a half-barrel,
can allow you to grow water lilies and other aquatic plants. |
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There was a time when
"They have a pool' usually meant a swimming pool, a sure sign of
great wealth and lavish spending. The time has come when having a
pool can well mean you can have a clear reflecting pool, a fishpond,
or water garden as a focal point in a lovely yard. With the
improvements in liners and preformed fiberglass, such an intriguing
feature is now within the means of almost everyone with a garden.
Most take much less work and room than a swimming pool and appeals
to a wider range of people.
Trickling water sets a mood of liveliness, movement, and
enchantment; standing water of peace and tranquility. Both enhance
the feeling of privacy and security in a world of your own that
reflects the changing seasons and moving clouds overhead.
Even the most unhandy person can now install a pool in two weekends
and maintain it with much less work and expense than most people
expect, little more than needed for a standard flower border. An
evening's study of this booklet, followed by the help of your
distributor, will get you started, even if you are completely
unfamiliar with the subject. You'll enjoy every aspect of learning
as you go.
Tub Gardens
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These miniature water gardens are available even for apartment
dwellers on a patio. They bring beauty and uniqueness to any
setting. Children love them and can easily plant and care for their
very own.
You can use large ceramic planters, old wash tubs, bathtubs or
kettles, or specially purchased containers. Bury these or not,
depending on their aesthetic value. Old barrels make fine tub
gardens, but they may contain bacteria harmful to plants and fish
even after charring. To overcome this, line such tubs with a sheet
of pool liner and secure the edges.
To
plant a tub garden
- When using city
water use a de-chlorinating agent according to label directions.
Chlorine is deadly to plants & fish.
- Fill the tub
slowly with water from a pencil-thin flow from the hose into the
bottom of the tub
- Plant water plants
in 10 inch pots and position, one at a time. Use blocks, bricks,
or overturned pots to bring pots to the proper level for each
plant. Include some bog plants like cattails or arrowhead that
will give standing leaves above the water. Put a layer of rocks,
gravel, or sand over the top surface of the pot to keep the soil
from washing out.
- Place a lily in
the center for a focal point.

- The larger the tub
the less water temperatures will fluctuate. Some tubs will be
large enough for gold fish but not for Koi. In small tubs you
should add Mosquito Fish (Gambusia) or Guppies to eat mosquito
larvae and some water snails to keep the water and plants clean.
- Watch carefully. A
tub should achieve balance in about 60 days, usually without
chemicals. Use an algae inhibitor only if needed.
Winter Care
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Lest you think cold winters eliminate water gardens, take heart.
With minimal care, your plants and fish can survive in the pond,
or you can move them indoors until spring.
In mild climates or with added heat from a floating de-Icer,
fish will live under a foot of ice as long as an air hole is
kept open to let oxygen in and noxious gases out. Don't make
holes by smashing the surface or the concussion could damage or
kill the fish.
Putting a few logs in the water will absorb the pressure of the
ice so the concrete or liner will not crack.
Water Scarcity
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If you are concerned about saving water, good. But this also does
not rule out a water garden. Here are some proven facts.
- A pool takes less
water to maintain than does the lawn it displaces.
- With today's new
pond construction materials and methods, leakage is completely
eliminated. Pond water, unlike water put on a garden or lawn,
does not seep away.
- To cut
evaporation, have straight up and down rather than sloping sides
on your pool.
- Use water
fountains or falls only when you are outside to enjoy them or
put them on a timer.
- The presence of a
pool offers psychological benefits, a feeling of lushness and
added serenity.
Waterfalls or
Fountains Top
of Page
It is possible to buy fountains that are complete units and require
only electricity, no pool at all. A simple set up, water running
from a pipe back into a rain barrel can add the enchanting sound of
trickling water to a garden.
To install a fountain in any water-holding container requires only a
submersible pump, a screen for the inlet, a length of pipe to reach
just above the water surface, and the fountainhead. Various heads
will give different patterns. The aeration of the water also helps
to keep it clean.

Waterfalls can be a
trickle of water over stones or a cascading wall. They are usually
constructed in conjunction with a pool that should be four times the
size of the waterfall. Often the dirt from digging the pond,
arranged with rocks, makes for a natural look as the pond backdrop;
or cover existing walls, large drums, or cement blocks for a
backdrop. A liner all in one piece for both pool and waterfall is
best. Use either cement or a pool liner. Arrange rocks carefully so
they do not tear or puncture and do not trim the liner until the
waterfall runs for several days to allow for any changes as the pool
settles.
A drip stone overhanging the edge of the pool with airspace beneath
and some hollow space behind the falling water will accentuate the
sound of the falls.
Run flexible tubing from the pool to the top of the waterfall. If
you know the height of the fall, the length for the tubing, and the
volume of water in the pool, your dealer can guide you in the choice
of a pump. In fact, dealers and landscapers who specialize in these
products will be glad to help you choose all the components needed
and make sure you understand how to use them for maximum enjoyment.
Install the pump, fill the pond with water and take PH and chlorine
readings. Wait a week while water circulates and this should
eliminate problems. Do this before adding plants or fish.
It is certainly possible to have fish, plants, and a waterfall as
well if a pool is properly designed.
Put Safety First
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Check with local building and electrical codes. For pumps, filters,
and underwater lights, most codes require a weather-proof receptacle
within 6 feet of the pump and 18 inches above the ground, protected
by a ground fault circuit interrupter (GFCI) that will shut down at
once if a potentially dangerous malfunction should occur. Most
underground wiring requires an underground feeder (UF), rigid
conduit, or a combination of conduit above ground, UF below. Codes
also say how deep these must be buried, and it does not make sense
to take any chances with such a potentially dangerous combination as
electricity and water.
Other Additions
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Electricity may not be needed at all in a natural pool with plants
and fish. However, a reflecting pool with only water will need a
filter, either mechanical or biological, and pump to keep the water
clear and some prefer to use these in fish ponds as well.
You may also want to install underwater lights. If not, there are
lovely floating candles for use on ponds or on swimming pools on
those special occasions when you are entertaining at night.
Most pools do not need a drain. Just empty by bucket or syphon on
the rare occasions when needed; at the most once a year for small
pools in cold climates where you start anew each spring. Use this
water for watering other plants as it is rich in nutrients.
Design is Important
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Place your water garden where it will be in harmony and scale with
the rest of the landscape and where you can enjoy it most from
indoors looking out or from outdoor living areas.
The site should have as much sun as possible for the lilies and
other aquatic plants. They need a minimum of 5 to 6 hours of full
sunlight a day for best bloom.
Also choose a place away from deciduous trees and shrubs. The leaves
that make such good mulch in a garden make trouble in a pond as they
produce noxious gases that could harm fish. Take note of young trees
that are going to grow much larger and wider and bear that in mind.
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Select a level
location. Avoid low lying spots where water may accumulate
in heavy rains, flood your pool, destroy your plantings, and
wash away your fish. Even smaller amounts of water can wash
in weed killer, lawn fertilizer or other harmful chemicals
or simply add too much water at once and disturb the balance
of the pool's ecology. For goldfish, a pool should be at
least as large as a bathtub. An area of 50 square feet or
more is best, For most goldfish, 1 1/2 to 2 feet is deep
enough. Japanese Koi need 3 feet of depth. Smaller pools
need more careful balancing. Build the largest pool your
landscape and your budget can accommodate. The more water,
the less it is subject to environmental upset, and the more
plants and fish you can have. But remember it is not the
size but too much sun and feed and not enough plants that
lead to algae problems.
Keep in mind
electrical possibilities in case you later decide to add a
pump, fountain, or lighting fixtures. |
Choosing a Pool
LinerTop
of Page
A pond or pool is essentially a hole in the ground filled with
water. To keep this water in place, you have a choice of liners.
1. EPDM is a synthetic rubber membrane and is .045 mil. Easily
installed, it is the most flexible of all liners and has the longest
life of any membranes used for pond liners. It is UV resistant, fish
friendly and extremely user friendly.
2. PVC (poly vinyl chloride) sheeting has great strength with enough
elasticity to stretch with earth movements or ice pressure. These
liners are black, 20 mil. thick, and comparable in durability and
length of life to concrete. Should a sharp object puncture the
liner, a patching kit will handle the repair easily and effectively.
There can be slight shrinkage, up to 6 inches, so don't cut off
edges too soon
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3. HDPE (high density polyethylene) is a new material, also black,
45 mil.; thicker and stronger. It's more resistant to UV rays. Free
of Toxins and often guaranteed for 10 years.
4. Cement is usually applied over tie rods or a wire frame. Apply
wet cement to the wire 3-4 inches thick. Work quickly and dampen as
needed. Then cover the pond with polyethylene to slow the curing
process and keep rain water out. Wait a week for curing. Then apply
the coping or lip with the help of a level. Fill and let stand at
least a day, then drain. Scour concrete, rinse well, and seal the
surface with pool paint.
5. Preformed pools are usually made with plastic, fiberglass, or a
combination. You can let sturdy ones stand partly above ground or
use them in greenhouses or indoors, anyplace where the floor will
bear the weight. Select the shape that best fits your plans, again
the larger the better.
Building the Pool
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- First outline your
pool on the ground with a hose or rope. Allow the liner to warm
in the sun so it will be more flexible.
- Dig the excavation
at least 18 inches deep or 6 inches wider and 3 inches deeper
than a preformed liner. Let the floor slope 2%. Remove all sharp
objects. Add 2 to 3 inches of sand in the bottom and padding
such as an old carpet or a thick layer of newspapers to cushion
the sidewalls. Be sure the rim is level.

- Then lower in the
preformed pool or drape the liner loosely over the area with an
even overlap. Weight the drape around the edges. Slowly fill
pool half way and let the water mold it to the ground. For sharp
angles, you may need to fold the liner into the corners. Check
the rim level again. Fill to the brim. Check rim level. Then
fill the gaps around the preformed pool with soil or sand. See
above for cement construction. Hide the drape edges when you are
sure everything is set. It is best not to do this until you have
plants in place.
- All pools need a
rim of 1-3 inches to keep out groundwater. These rocks, bricks,
or paving stones will hide the edges of the liner and add the
finishing touch.
Balancing
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Allow the lined pool to settle or cure a concrete pool for a week
before adding plants first and then fish. A pool will bring no more,
perhaps fewer mosquitoes if you maintain a good ecological balance.
It may take 2 weeks to 2 months for your pool to reach a natural
balance where the fish, snails, oxygenating plants, and lilies will
usually keep the water clear and clean and the algae in control. In
the meantime, don't be alarmed if your pool turns murky. There will
be some algae wherever light and water exist together. A few will
turn the water slightly green and this is alright. Too many will
make it pea soup.
To prevent too much algae buildup add needed plants and give them
time to become established. Keep decomposing material to a minimum.
Skim falling leaves. Prune old foliage. Use chemicals only as a last
resort and select them carefully or they can also kill plants and
fish. Once balanced, ponds can reamain balanced for years with
proper maintenance. Whatever you do, DON'T DRAIN THE POOL. This will
just start the balancing process all over. Also, do not spend more
than one hour per one thousand gallons of water working, with hands
in the pond, once established, or you will disrupt the balance.
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Though pools
differ with depth, temperature, and sunlight, a good
general rule to remember is:
For every square yard of surface, have
·Two bunches of
oxygenating grasses
·One medium to large
water lily
·Twelve water snails
·Two fish, 4-5 inches
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Oxygenating Plants
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These grow under water and produce oxygen in the process of
photosynthesis. You can often see bubbles of oxygen arising
from these plants. If you have enough of them, they make it
difficult for algae to thrive by consuming most of the
carbon dioxide from the fish waste and decaying plant
matter. They also make a bed for the eggs and baby fish.
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Plant two bunches of
oxygenating grasses per container. If the pond is green when you put
them in, elevate the pots so they get enough sunlight. Gradually
lower them to the bottom as the pond clears. Should the fish eat
your plants, put six-inch cones of one-inch mesh wire over each
plant. This will save enough of the plant so it won't hurt if the
fish eat what grows through the mesh.
Water Snails
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These are good snails who eat the algae off your plants and pots.
They lay eggs that look like white jelly on the underside of lily
leaves, so be careful not to trim these away. Water snails will not
leave the pond or eat any decorative plants. When you get them,
float the bag for twenty minutes before releasing to equalize the
temperatures, just as you do for fish. Replace them, should they
disappear, until the pond balances.
Water Lilies
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Water lilies are very important as their leaves provide
surface coverage, thus cutting down the loss of oxygen and
keeping the pond from breathing too fast. Besides being the
loveliest and showiest of water plants, their leaves provide
needed underwater shade and keep the water cooler. By summer
a pond should have 50 percent coverage. |
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These exquisite flowers
come in many colors and sizes. They do best with roots in containers
on the pond floor or elevated to the proper depth. Most are easy to
grow, once established and will bloom freely from spring until late
fall. Do not be upset if the first flowers are not the color you
expected. Color varies with conditions and will intensify as plants
become established and the pool reaches balance.
You can start water lilies from seeds, but most people start with
plants. The hardy lilies multiply quickly with spreading tubers.
In warmer climates or where you can move lilies indoors over winter,
you'll also want some of the tropical lilies, which have larger
flowers that come in a wider range of colors. Some are deliciously
fragrant. Some bloom by day, others only at night.
Edible Water Plants
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Edibles like lotus, water chestnuts, and watercress can grow in the
pool, and celery, cranberries, natal plums, bananas, citrus, clump
bamboo, sorrel, and many herbs do well on the moist banks. Lotus can
take over, so harvest the tubers often enough to keep them in
control and eat or can, freeze, or dry them.
Planting
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Plant anytime after the weather warms up in the spring and at least
a week after you fill your pool. You can plant in bottom mud, but
containers allow flexibility in depth and position and make cleaning
and care easier. Use a mix of garden loam and aquatic plant
fertilizer. Do not use swamp muck, compost, peat moss,
or dry manure.

Submerge oxygenating plants first. Fill several 5-inch pots or
shallow containers with soil with an inch of sand on top. Root
several oxygenators per pot by pushing them a third of the way into
the soil.
Put one water lily per pot, the size recommended by your nurseryman.
Hardy lilies should be planted at an angle against the pot side.
Store indoors in harsh climates over winter.
Plant tropical water lilies when the nights grow warm. Set tubers in
the center of the pot with the crown at the soil line. Sink the pot
with 6 to 8 inches between the soil and the water surface. You can't
treat these as annuals and order new roots each year.

Fish and Other Water Life Top
of Page
Plants and fish work together to keep the water clear. Add one fish
per 2 sq. ft. of pond surface. You can choose from many colorful
goldfish such as calicoes, comets, blackmoors, and fantails. If your
pool is large and deep enough, you can add Japanese Koi.
Do not let the bags in which fish arrive get hot in the sun. Float
bags in the pond for 30 minutes before setting the fish free. This
will equalize the temperatures.
Feed pet store food, as directed, every one to three days. You can
easily train fish to come to a signal and eat from your hand. Remove
any food left after 5 to 10 minutes. Give extra protein food in the
fall and none in winter, a natural resting period for the fish. Do
not overfeed.
Welcome any frogs or toads that come. You can also buy these. With
the fish, they help control insects and algae growth. Turtles can
eat plants and fish, so are best excluded.
Maintenance
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Whenever you are near your water garden with a hose, daily if
possible, spray plants to wash any insects into the pool where your
fish will take care of them. This will also add a little water to
make up for evaporation. Never add large amounts at once or you will
disturb the balance. Remove dead foliage, skim off debris, and treat
for algae only as needed. Closely observe plants, fish, and liner
often simply to enjoy the sight, but also to check for any problems.
If you close down your pool for the winter, you'll want to clean,
refill, and balance it again every spring. Otherwise, you need only
empty and clean it every several years in the spring.
As your plants multiply, you will need to give some away or sell
them so you can try new ones. The same may be necessary with the
fish.
Bog or Marginal
Plants Top
of Page
These plants are ideal for the edges of a pool, the banks of a
natural brook, or any spot where the soil is constantly moist
throughout the growing season. A pool will not necessarily have a
damp edge, so you may want to extend the liner to include a shelf 8
inches deep. See the next section for situations where bog plants
make a garden of themselves.
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Cardinal
flower
Cattails
Closed gentian
Fringed gentian
Forget-me-not, water
Horse tail
Iris, bulbous (not bearded)
Jack-in-the-pulpit
Lilies
Marsh marigold
Moneywort
Pickrel weed
Pitcher plant
Royal fern
Sweet flag
Troutlily
Wake robin
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Floating
plants like water lettuce, floating heart, or water hyacinth need no
soil. These do provide oxygen, but are not a substitute for
oxygenating plants. They remove excess nutrients better than other
plants and provide hiding places for eggs and shelter for fish. When
these spread too far, just scoop out the excess.
Bog Gardens Top
of Page
On land where there is a natural bog area, where the water does not
stand in pools, but the soil is constantly saturated, another unique
garden opportunity awaits. Instead of going to the expense of
draining the bog, plant some of the plants that thrive under those
very conditions. Clear the area of other plants, add compost to the
soil, and plant with a naturalistic design.
For people who do not have a bog, it is possible to create the
required condition: a continuous supply of water and a soil capable
of retaining it. Use a soaker hose or low flow irrigation system
buried about 2 inches below the soil surface. Mix sand and peat moss
in equal portions and add other humus in generous quantities to a
depth of 18 inches. Use a sunken tub or wading pool for most
efficient control or simply remove and replace other soil in a
low-lying spot.
Once planted, the only care required of a bog garden is occasional
removal of unwanted plants that may creep in.
Getting Started Top
of Page
- Pick the location
- Sunlight - Few falling leaves - Focal point
- Plan the design
-Tub - Pool Liner -Edging rock or brick
- Plants -
Oxygenators - Lilies - Bog plants
- Containers
- Fertilizer
- Fish
- Snails
- Algae control
chemicals
- Pump for waterfall
- Fountainhead
- Filter where
needed
Some
facts may vary by region. Please check
with your local lawn and garden dealer if concerned about possible
variations.