From Seed to Flower: The Cannabis Plant’s Growth Stages

Before cannabis becomes a finished product, it begins as a living plant with a life cycle. Understanding its stages can make the language of cultivation easier to follow, whether you’re a curious reader or learning about the craft.

1. Germination

A seed begins germination when it takes up water and its embryo resumes growth. A root emerges first, followed by the shoot that develops above the growing medium. Not every seed germinates, and conditions can influence development.

2. Seedling

The young plant establishes roots and begins producing leaves. Its first seed leaves are followed by true leaves. At this stage, the plant is establishing the structures it needs for continued growth.

3. Vegetative growth

During vegetative growth, the plant develops its roots, stems, branches, and leaves. Growth depends on genetics and conditions such as light, water, nutrients, and temperature. Some plants are also propagated from cuttings rather than grown from seed.

4. Flowering

In flowering, reproductive structures develop. Many cannabis varieties respond to changes in the length of uninterrupted darkness; other varieties flower with age and are commonly called autoflowering. Flower development and timing vary across plants.

What changes during flowering?

Glandular trichomes are concentrated around female flowering structures and are associated with cannabinoid and terpene production. Their appearance and chemical contents can change as the plant matures, but appearance alone cannot establish the exact chemistry of a batch.

After flowering

Harvesting, drying, curing, and storage can affect the final material. They deserve their own conversation: aroma compounds can change during processing and storage, so the plant’s journey doesn’t end when it is cut.

For education. Cultivation laws and local requirements vary; check the rules where you live.

Sources & further reading

• Canadian Food Inspection Agency: The biology of Cannabis sativa
• Health Canada: Growing cannabis at home safely

Featured image: original AI-generated editorial illustration for Stoner’s Digest.