1. Development of Pre-Flowers

One of the earliest signs of the flowering stage is the emergence of pre-flowers. Pre-flowers are small, underdeveloped versions of the flowers that will later develop into buds. They appear at the nodes, where branches and leaves meet the main stem. Male pre-flowers typically develop small sacs, while female pre-flowers have pistils, which are hair-like structures.

2. Change in Growth Pattern

As the plant transitions into the flowering stage, there may be a noticeable change in its growth pattern. The plant may stop growing taller and focus on developing lateral branches and more nodes. This change in growth pattern is a natural response to the hormonal shifts that occur during flowering.

3. Formation of Bud Sites

During the flowering stage, the cannabis plant starts developing clusters of bud sites along the branches. These bud sites will eventually become the flowering sites where buds will form and mature. The emergence of these bud sites is a clear indication that the plant is entering the flowering phase.

4. Appearance of White Hairs (Pistils)

Female cannabis plants produce pistils, which are small, white hair-like structures that protrude from the pre-flowers. These white hairs are one of the most visible signs of the flowering stage. As the plant progresses further into flowering, the pistils may change color, typically transitioning to shades of yellow, orange, or brown.

5. Increase in Resin Production

As the plant enters the flowering stage, there is a significant increase in resin production. The leaves, stems, and especially the bud sites become sticky to the touch. This resin production is responsible for the production of cannabinoids, including THC and CBD, and contributes to the plant's aroma and potency.

6. Changes in Leaf Structure

During flowering, cannabis plants may exhibit changes in their leaf structure. Some leaves may become narrower and develop serrated edges. This change is more pronounced in certain cannabis strains and can be an additional visual indicator of the flowering stage.

7. Stretching and Height Increase

In the early flowering stage, cannabis plants may undergo a period of rapid growth known as the stretching phase. The plant may experience a noticeable increase in height as it reaches for more light. This stretching phase is more pronounced in sativa-dominant strains but can vary depending on the genetics and environmental conditions.

8. Aroma Development

As the plant progresses in the flowering stage, it begins to emit a distinct aroma. The aroma can vary widely depending on the strain, with some plants having sweet, fruity, or skunky scents. The development of a strong and noticeable aroma is a positive sign that the plant is in the flowering stage.

9. Trichome Formation

Trichomes are tiny resin glands that develop on the surfaces of the plant's flowers, leaves, and stems. These trichomes play a crucial role in the production of cannabinoids and terpenes. As the plant transitions into the flowering stage, trichomes begin to form and become more abundant, especially on the buds.

Recognizing these signs of the cannabis plant transitioning into the flowering stage allows growers to adjust their care routine accordingly. Providing appropriate lighting, nutrient ratios, and environmental conditions specific to the flowering stage can maximize flower production and ensure the best possible harvest.