Question:
Plants which complete their life cycle under a given site within one season or a year, are called as
Plants which complete their life cycle under a given site within one season or a year, are called as
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Life Cycle Classifications:
Annual $\rightarrow$ Completes life cycle in 1 season/year.
Biennial $\rightarrow$ Completes life cycle in 2 years (vegetative in year 1, reproductive in year 2).
Perennial $\rightarrow$ Lives for more than 2 years.
Annual $\rightarrow$ Completes life cycle in 1 season/year.
Biennial $\rightarrow$ Completes life cycle in 2 years (vegetative in year 1, reproductive in year 2).
Perennial $\rightarrow$ Lives for more than 2 years.
Updated On: Jul 31, 2026
- Trees
- Annuals
- Shrubs
- Climbers
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
Horticultural crops and landscape plants are classified into distinct groups based on their growth habit, life expectancy, stem texture, and the time required to complete their life cycle.
These categories include annuals, biennials, and perennials.
Understanding this classification is essential for seasonal garden planning, crop rotation, and ornamental border design.
Step 2: Detailed Explanation:
An annual plant is defined as a plant that completes its entire life cycle—from seed germination, vegetative growth, flowering, seed production, to senescence and death—within a single growing season or a single year.
These plants are typically herbaceous and do not develop woody structures.
They invest their metabolic energy entirely into rapid reproduction, producing a large quantity of seeds to ensure species survival before dying off at the end of the season.
Examples of annuals in floriculture include French marigold, petunia, pansy, phlox, and zinnia.
To compare with the other options:
Trees are long-lived woody perennials with a single, well-defined main trunk.
They require several years of vegetative growth before reaching maturity and continue to live and reproduce for decades or centuries.
Shrubs are woody perennial plants characterized by multiple stems arising near the base and a shorter stature than trees.
Climbers are plants with weak stems that rely on external support structures (using tendrils, twiners, or adventitious roots) to grow vertically.
Climbers can be annual or perennial, but the broad definition of completing the life cycle within one season specifically describes annuals.
Step 3: Final Answer:
Consequently, plants that complete their life cycle within one season or a year are called Annuals.
Horticultural crops and landscape plants are classified into distinct groups based on their growth habit, life expectancy, stem texture, and the time required to complete their life cycle.
These categories include annuals, biennials, and perennials.
Understanding this classification is essential for seasonal garden planning, crop rotation, and ornamental border design.
Step 2: Detailed Explanation:
An annual plant is defined as a plant that completes its entire life cycle—from seed germination, vegetative growth, flowering, seed production, to senescence and death—within a single growing season or a single year.
These plants are typically herbaceous and do not develop woody structures.
They invest their metabolic energy entirely into rapid reproduction, producing a large quantity of seeds to ensure species survival before dying off at the end of the season.
Examples of annuals in floriculture include French marigold, petunia, pansy, phlox, and zinnia.
To compare with the other options:
Trees are long-lived woody perennials with a single, well-defined main trunk.
They require several years of vegetative growth before reaching maturity and continue to live and reproduce for decades or centuries.
Shrubs are woody perennial plants characterized by multiple stems arising near the base and a shorter stature than trees.
Climbers are plants with weak stems that rely on external support structures (using tendrils, twiners, or adventitious roots) to grow vertically.
Climbers can be annual or perennial, but the broad definition of completing the life cycle within one season specifically describes annuals.
Step 3: Final Answer:
Consequently, plants that complete their life cycle within one season or a year are called Annuals.
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