Topic C

The Plant Life Cycle

Follow a plant through seed, germination, seedling growth, flowering, fruiting, and seed dispersal.

A new sproutA flower budA fruit or seed

A teaching image showing a flowering plant life cycle from seed and germination to seedling, growth, flowering, fruiting, and seeds

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From seed to seedling

Explore different ways plants reproduce

Showing 32 of 32 articles

Germination and seedlings

How does a seed germinate?

Seed germination often starts with water uptake, then the radicle emerges and the seedling begins to build roots and leaves. Learn how water, oxygen, temperature, and stored resources fit together.

Germination and seedlings

What conditions do seeds need to germinate?

Seeds usually need water, oxygen, and a suitable temperature to germinate. Some are also affected by light, darkness, dormancy, seed coat conditions, or seed viability.

Germination and seedlings

What is a seedling?

A seedling is a young plant shortly after germination, when roots, stems, and leaves are being established. Learn how radicles, cotyledons, true leaves, and early growth fit together.

Life cycles and plant reproduction

What stages are in a plant life cycle?

A common flowering plant life cycle can start with seed germination, seedling growth, flowering, pollination, fruit and seed formation, dispersal, dormancy, or another growth cycle.

Pollination and seed formation

What is pollination?

Pollination is the transfer of pollen to a stigma. It is not the same as fertilization. Learn how pollen, pollen tubes, ovules, seeds, and fruit formation connect.

Pollination and seed formation

What is the difference between self-pollination and cross-pollination?

Self-pollination and cross-pollination differ by pollen source. Learn how pollen moves within one plant or between different plants of the same species.

Seed dispersal

How do seeds disperse?

Seed dispersal is the movement of seeds away from the parent plant. Learn how wind, water, animals, hooks, explosive fruits, and gravity help seeds move.

Pollination and seed formation

Wind-pollinated vs insect-pollinated flowers

Learn how wind-pollinated and insect-pollinated flowers differ by how pollen moves, including petals, scent, nectar, pollen amount, anther position, and stigma shape.

Vegetative propagation

What is cutting propagation?

Cutting propagation uses part of a plant, such as a stem, leaf, or root section, to grow a new plant. Learn how it differs from seeds and how adventitious roots, nodes, water, and air fit together.

Vegetative propagation

Why can some plant cuttings grow roots?

Some plant cuttings can form adventitious roots from stems, nodes, or cut surfaces. Learn how living tissue, nodes, buds, auxin, and plant regeneration fit together.

Vegetative propagation

What is plant division?

Plant division separates plant units that already resemble small plants, usually with roots, a stem base or growing point, and leaves or a place that can make leaves.

Vegetative propagation

What Is Layering in Plant Propagation?

Layering is an asexual plant propagation method in which a stem forms roots while it is still attached to the parent plant. Learn how layering differs from cuttings, division, and air layering.

Vegetative propagation

What Is Plant Grafting?

Learn how a scion joins a rootstock, how graft unions heal, and why cambium contact and graft compatibility matter.

Vegetative propagation

Plant tissue culture grows plant cells, tissues, organs, embryos, or small pieces of a plant in a controlled, usually sterile environment. Learn how explants, callus, shoots, roots, micropropagation, and acclimatization fit together.

Life cycles and plant reproduction

How Do Ferns Reproduce?

How do ferns reproduce? Follow spores from sori and sporangia to gametophytes, water-based fertilization, and new sporophytes, then compare rhizome propagation and division.

Life cycles and plant reproduction

What Are Spores in Plants?

Spores are not tiny seeds. In ferns, spores are haploid cells made by the diploid sporophyte. Learn how spores, gametophytes, n / 2n, seeds, and pollen fit into plant life cycles.

Vegetative propagation

How Do Bulb Plants Reproduce?

Learn how bulb plants reproduce from bulblets, cormels, stem tuber eyes, rhizome buds, bulbils, or seeds, and how dormancy fits in.

Vegetative propagation

Why Can Some Succulent Leaves Grow New Plants?

Some succulent leaves can form roots and shoots near the leaf base. Learn why leaf propagation works for some plants—and why one root is not a whole new plant.

Life cycles and plant reproduction

How Do Plants Start Growing Again After Dormancy?

How do plants resume growth after dormancy? Learn how chilling, temperature, light, and water cues lead to bud break, while stored energy supports early shoots.

Life cycles and plant reproduction

What is the difference between annual, biennial, and perennial plants?

Annual, biennial, and perennial plants differ by life-cycle length; climate can change how gardeners label the same plant.

Pollination and seed formation

Why Do Flowers Smell?

Learn why flowers smell, how VOCs move through air, why some scents peak at night, and why scent alone does not guarantee pollination.

Germination and seedlings

Why Do Seeds Go Dormant? Is Dormancy the Same as Germination Failure?

A seed that does not germinate may face unsuitable conditions, dormancy, or loss of viability. Learn how these possibilities differ, and why radicle emergence is a clearer sign of germination.

Pollination and seed formation

What Happens After Pollen Lands on a Stigma?

Pollen landing on a stigma is only the start. Follow pollen as its tube grows to an ovule, then watch an animation of double fertilization forming the embryo and endosperm.

Vegetative propagation

What is the difference between sexual and asexual reproduction in plants?

Compare sexual and asexual reproduction in plants, from pollen, fertilization, and seeds to cuttings, division, layering, and runners.

Pollination and seed formation

How Does an Ovule Become a Seed?

Follow how an ovule becomes a seed in flowering plants, including pollen tubes, double fertilization, embryos, endosperm, seed coats, and the ovary-to-fruit connection.

Vegetative propagation

Seed-Grown, Cutting-Propagated, or Divided? Three Plant Origins Explained

Compare seed-grown plants, cuttings, and divisions by starting material, retained structures, genetic relationship, and observable garden clues.

Life cycles and plant reproduction

How Are Juvenile and Adult Plant Phases Different?

A plant phase is a developmental stage marked by morphological and physiological traits. Learn how leaf shape, citrus thorns, flowering competence, and flower development can change at different times.

Germination and seedlings

What Does a Seed Coat Do? Why Are Some Seeds Hard?

A seed coat protects the embryo and stored resources while affecting water and gas exchange. Learn why some seed coats are hard, how they relate to germination, and why a hard outer shell may be fruit tissue.

Life cycles and plant reproduction

Gymnosperm vs. Angiosperm Reproduction: Why Isn't a Pine Cone a Fruit?

Gymnosperms and angiosperms both produce pollen, ovules, and seeds, but their ovules are enclosed differently. Learn why a pine cone is not a fruit and how ovules, seeds, ovaries, cones, and fruits connect.

Germination and seedlings

What Is Endosperm? How Seed Reserves Support a Seedling

Learn how endosperm forms, how it differs from the embryo and cotyledons, and how starch, protein, and oil reserves support early seedling growth.

Pollination and seed formation

How Is Pollen Formed, and How Do Anthers Release It?

Learn how pollen forms inside an anther, from pollen mother cell meiosis and microspore tetrads to two- or three-celled pollen and anther dehiscence.

Pollination and seed formation

How Does an Ovule Develop? Embryo Sac and Egg Cell Formation

An ovule is not an egg cell. Follow the common path from a megaspore mother cell through meiosis to a functional megaspore and seven-celled embryo sac.

The Plant Life Cycle

Find an article in this topic

Follow a connected reading path

From seed to seedling

Explore different ways plants reproduce

How does a seed germinate?

What conditions do seeds need to germinate?

What is a seedling?

What stages are in a plant life cycle?

What is pollination?

What is the difference between self-pollination and cross-pollination?

How do seeds disperse?

Wind-pollinated vs insect-pollinated flowers

What is cutting propagation?

Why can some plant cuttings grow roots?

What is plant division?

What Is Layering in Plant Propagation?

What Is Plant Grafting?

What Is Plant Tissue Culture?

How Do Ferns Reproduce?

What Are Spores in Plants?

How Do Bulb Plants Reproduce?

Why Can Some Succulent Leaves Grow New Plants?

How Do Plants Start Growing Again After Dormancy?

What is the difference between annual, biennial, and perennial plants?

Why Do Flowers Smell?

Why Do Seeds Go Dormant? Is Dormancy the Same as Germination Failure?

What Happens After Pollen Lands on a Stigma?

What is the difference between sexual and asexual reproduction in plants?

How Does an Ovule Become a Seed?

Seed-Grown, Cutting-Propagated, or Divided? Three Plant Origins Explained

How Are Juvenile and Adult Plant Phases Different?

What Does a Seed Coat Do? Why Are Some Seeds Hard?

Gymnosperm vs. Angiosperm Reproduction: Why Isn't a Pine Cone a Fruit?

What Is Endosperm? How Seed Reserves Support a Seedling

How Is Pollen Formed, and How Do Anthers Release It?

How Does an Ovule Develop? Embryo Sac and Egg Cell Formation

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