Deck 33: Water Gardens

Question 1

A water garden differs from a swimming pool or a fountain in that it is intended to support plant life and perhaps aquatic animal life as well.

Answer 1

True

Question 2

If the water garden is large enough, it becomes self-sustaining and does not require the same maintenance and cleaning concerns that are needed by smaller water gardens.

Answer 2

False

Question 3

The synthetic, peat-lite soil mixes are the ideal growing medium for water garden plants.

Answer 3

False

Question 4

Emergent water plants are the major oxygenators in a water garden.

Question 5

Water lilies exemplify the floater type of water garden plant.

Question 6

Water lilies are of two types: hardy and tropical.

Question 7

The water in a water garden should be as rich with fertilizer as possible to ensure maximum growth of the plants and fish.

Question 8

Excessive debris at the bottom of the water garden is of no concern as long as the water is at least 2 feet deep and the debris is organic.

Question 9

Not all water garden species require the same depth of installation in the garden.

Question 10

All water plants except floater species require containers.

Question 11

What is the best type of fertilizer for water garden plants?

A) rapid release granulars
B) systemics
C) liquid forms
D) slow release tablets or granular

Question 12

Nutrient rich water promotes what type of growth in a water garden?

A) algal
B) flowering
C) vegetative
D) floater

Question 13

What pool depth is necessary if fish are to be left in the water garden through the winter?

A) 1 to 1 1/2 feet
B) 2 to 3 feet
C) 4 to 5 feet
D) Fish will not survive at any depth

Question 14

When should the plants be removed from a shallow pool in preparation for the winter?

A) Before the first frost
B) Just after Labor Day
C) After the plants are dormant
D) Timing is not significant

Question 15

How should a water garden be regarded as a component of the outdoor room?

A) It should be a stand-alone feature
B) It should utilize all six principles of design
C) It should fit in visually and functionally with the rest of the components
D) It is a separate use area, not a component of another design in its development

Question 16

What is used to hide the pool liner or to serve as an interface between the pool rim and the adjacent surfacing?

A) plant material
B) decking
C) lounges and other patio furnishings
D) edging materials

Question 17

How many hours of direct sunlight are need to support the plant life in a water garden?

A) one to three
B) four to five
C) six to eight
D) nine to ten

Question 18

Which type of water plant spreads most rapidly?

A) emergents
B) submerged plants
C) floaters
D) All answers are correct

Question 19

If a water garden had a plastic liner, what material would be the best for the containers of the water plants?

A) plastic
B) concrete
C) clay
D) ceramic

Question 20

What should be the condition of the soil at the time water plants are planted?

A) dry and aerated
B) dry and sandy
C) wet to near mudlike
D) damp

Question 21

____________________ can be used to weigh down the soil after a water plant is installed in its container.

Question 22

Most hardy water lilies grow best with ____________________ inches of water over the top of their container.

Question 23

Lotus should have ____________________ inches of water over the top of their container.

Question 24

Submerged water plants provide oxygen that is needed by fish and other pond animals to survive. In turn the animal life respires and provides ____________________ needed by the plants for photosynthesis.

Question 25

Safeguards must be incorporated into the design of the water garden if there are ____________________ in the household.

Question 26

The ideal soil for a water garden is ____________________.

Question 27

Emergent plants are sometimes referred to as ____________________ because they grow at the edges of the water garden.

Question 28

Inverted pots or bricks can be used beneath the containers of water plants to control the ____________________.

Question 29

The propagative stock of water lilies and lotus is the ____________________.

Question 30

Tropical water lilies need a water temperature of ____________________ degrees Fahrenheit at the time of placement into the water garden.