Floriculture, Landscaping and Ornamental Horticulture MCQs 2026

Hardy annuals are those that can tolerate

1. A Permanent waterlogging only ✓
2. B Relatively low temperature ✓
3. C Complete darkness only ✓
4. D No soil contact ✓

Removing faded flowers from ornamental plants is called

1. A Deadheading ✓
2. B Scalping ✓
3. C Girdling ✓
4. D Etiolation ✓

The showy red parts of poinsettia are

1. A Corms ✓
2. B Tendrils ✓
3. C Seeds ✓
4. D Bracts ✓

The showy coloured parts of bougainvillea are mainly

1. A True petals only ✓
2. B Sepal spines ✓
3. C Bracts ✓
4. D Fruits ✓

Edging in a garden is used to

1. A Define boundaries of beds or lawns ✓
2. B Induce seed dormancy ✓
3. C Replace irrigation ✓
4. D Stop photosynthesis ✓

Rhythm in a landscape is commonly created through

1. A Permanent plant removal ✓
2. B Repetition of elements ✓
3. C Soil sterilization only ✓
4. D Root pruning only ✓

Harmony in landscape design refers to

1. A Random conflict among colours ✓
2. B Ignoring scale completely ✓
3. C Unity among design elements ✓
4. D Using only one plant forever ✓

Perennial ornamentals are plants that

1. A Die immediately after germination ✓
2. B Live for more than two years ✓
3. C Never flower ✓
4. D Grow only from spores ✓

In landscaping, a focal point is used to

1. A Hide every design element ✓
2. B Prevent all movement ✓
3. C Eliminate plant variety ✓
4. D Attract visual attention ✓

Flower forcing means

1. A Removing all buds permanently ✓
2. B Inducing flowering outside the normal season ✓
3. C Preventing photoperiod control ✓
4. D Harvesting roots only ✓

A good potting mixture for ornamentals should be

1. A Porous, fertile and well drained ✓
2. B Compacted, saline and waterlogged ✓
3. C Only pure stones without nutrients ✓
4. D Sterile concrete powder only ✓

Espalier is the practice of training a plant

1. A Only as an underwater stem ✓
2. B Into loose unpruned forest ✓
3. C Without any support or pruning ✓
4. D Flat against a wall or support ✓

Mulching around ornamental plants helps mainly to

1. A Block all root aeration permanently ✓
2. B Stop nutrient cycling ✓
3. C Conserve soil moisture and suppress weeds ✓
4. D Increase evaporation only ✓

Xeriscaping is a landscaping approach focused on

1. A Maximum water wastage ✓
2. B Water-efficient planting and design ✓
3. C Only aquatic plants ✓
4. D Eliminating all mulch ✓

Avenue planting means planting trees

1. A Along roads or pathways ✓
2. B Only inside glass vases ✓
3. C Underwater in ponds ✓
4. D Inside grain storage bins ✓

Shrubbery in landscape gardening refers to

1. A Only seasonal vegetables ✓
2. B A pond without plants ✓
3. C Group planting of shrubs ✓
4. D Single annual flower in a pot ✓

Floral foam is used in flower arrangement to

1. A Increase seed germination ✓
2. B Sterilize lawn soil ✓
3. C Create plant hormones ✓
4. D Anchor stems and hold water ✓

Annual flowers complete their life cycle in

1. A One growing season ✓
2. B Ten years only ✓
3. C A woody trunk phase ✓
4. D A permanent bulb stage only ✓

A rock garden combines ornamental plants with

1. A Only standing water ✓
2. B Cereal straw only ✓
3. C Concrete without plants ✓
4. D Rocks and stones as major design elements ✓

Vertical gardening is best described as

1. A Growing only underground bulbs ✓
2. B Removing all landscape levels ✓
3. C Growing plants on walls or upright supports ✓
4. D Planting only in flooded ponds ✓

Layering is a propagation method in which roots form

1. A Only after seed extraction ✓
2. B Inside dry pollen grains ✓
3. C On detached petals only ✓
4. D On a stem while it is still attached to the parent plant ✓

A greenhouse or polyhouse is used mainly for

1. A Protected cultivation ✓
2. B Dryland forestry only ✓
3. C Open grazing ✓
4. D Deep sea farming ✓

In many orchids, the spongy root covering that absorbs moisture is called

1. A Cambium ✓
2. B Velamen ✓
3. C Endosperm ✓
4. D Pericarp ✓

The common planting material of lily is

1. A Cormel only ✓
2. B Stolon only ✓
3. C Bulb ✓
4. D Tap root ✓

Tuberose is commercially propagated mainly by

1. A Spores ✓
2. B Air layering only ✓
3. C Seedless runners only ✓
4. D Bulbs ✓

Gerbera belongs to the family

1. A Rosaceae ✓
2. B Asteraceae ✓
3. C Poaceae ✓
4. D Myrtaceae ✓

Vase life of cut flowers is improved by

1. A Clean water, preservative solution and cool handling ✓
2. B Dirty containers and high heat ✓
3. C Crushing all stems completely ✓
4. D Removing all water immediately ✓

Floriculture is the branch of horticulture concerned with

1. A Cereal storage only ✓
2. B Livestock breeding only ✓
3. C Marine fisheries only ✓
4. D Flowering and ornamental plants ✓

Pruning in ornamental plants means

1. A Adding excess salts to soil ✓
2. B Harvesting seeds only ✓
3. C Removing unwanted plant parts ✓
4. D Flooding the root zone ✓

An informal garden generally emphasizes

1. A Naturalistic curves and irregular arrangement ✓
2. B Strict bilateral symmetry only ✓
3. C No plant diversity ✓
4. D Only square beds ✓

Softwood cuttings are taken from

1. A Old dry heartwood only ✓
2. B Mature seeds only ✓
3. C Tender current season growth ✓
4. D Fully dried petals ✓

A formal garden is characterized chiefly by

1. A Completely random planting ✓
2. B Symmetry and geometric layout ✓
3. C No paths or axes ✓
4. D Wild uncultivated growth only ✓

A herbaceous border is mainly composed of

1. A Only fruit trees ✓
2. B Only turf grasses ✓
3. C Flowering herbaceous plants ✓
4. D Only submerged aquatics ✓

Croton is valued in ornamental horticulture mainly for its

1. A Edible tuber ✓
2. B Cereal grain ✓
3. C Oilseed pod ✓
4. D Colourful foliage ✓

Gulkand is traditionally prepared from petals of

1. A Rose ✓
2. B Marigold ✓
3. C Gladiolus ✓
4. D Bougainvillea ✓

Pinching in chrysanthemum is practiced mainly to

1. A Induce bulb formation ✓
2. B Encourage branching and more flowering shoots ✓
3. C Stop all lateral growth permanently ✓
4. D Convert flowers into leaves ✓

Aeration of turf mainly helps by

1. A Stopping root respiration ✓
2. B Removing all organic matter ✓
3. C Preventing water infiltration ✓
4. D Relieving soil compaction ✓

Cut flowers should generally be harvested at

1. A Complete wilting stage ✓
2. B Root decay stage ✓
3. C The proper species-specific opening stage ✓
4. D Seed shattering stage ✓

Ikebana is the traditional art of flower arrangement from

1. A Brazil ✓
2. B Japan ✓
3. C Egypt ✓
4. D Canada ✓

Clipping shrubs into ornamental shapes is called

1. A Topiary ✓
2. B Budding ✓
3. C Mulching ✓
4. D Desuckering ✓

Doob grass commonly used for lawns is botanically

1. A Rosa indica ✓
2. B Tagetes erecta ✓
3. C Cynodon dactylon ✓
4. D Gladiolus grandiflorus ✓

Jasmine is commonly multiplied by

1. A Only true seed in all cultivars ✓
2. B Tubers ✓
3. C Spores ✓
4. D Cuttings and layering ✓

Chrysanthemum is generally classified as a

1. A Short-day plant ✓
2. B Long-day cereal ✓
3. C Day-neutral cucurbit ✓
4. D Shade-only fern ✓

The usual planting material of gladiolus is

1. A Runner ✓
2. B Corm ✓
3. C Bulbil leaf ✓
4. D Tap root ✓

A common commercial method for propagating roses on rootstock is

1. A Seed broadcasting only ✓
2. B Corm division ✓
3. C T-budding ✓
4. D Spore culture ✓

Marigold is commonly propagated for commercial bedding plants by

1. A Seed ✓
2. B Corms ✓
3. C Bulb scales ✓
4. D Rhizomes ✓

The art of growing miniature trees in containers is known as

1. A Topiary ✓
2. B Ikebana ✓
3. C Terracing ✓
4. D Bonsai ✓

In landscape design, equal visual weight on both sides of an axis is called

1. A Texture ✓
2. B Balance ✓
3. C Accent ✓
4. D Transition ✓

Florist greens are used in arrangements mainly as

1. A Root vegetables ✓
2. B Foliage fillers ✓
3. C Fertilizer salts ✓
4. D Dormant seeds ✓

The cold chain after harvest is important for cut flowers because it

1. A Maintains quality by slowing respiration and water loss ✓
2. B Speeds wilting deliberately ✓
3. C Removes all stem water ✓
4. D Converts flowers into seeds ✓