The growth phases of marijuana plants

The growth of marijuana plants goes through several critical phases, each with its own specific characteristics and needs. Understanding these stages is essential to ensure a high-quality, abundant harvest.

At Grow Industry, we tell you how each phase of growth of marijuana plants, from germination to flowering, plays a fundamental role in the development of your plants. Knowing and respecting these processes not only optimizes the performance of your crop, but also guarantees the health and potency of your plants.

Importance of respecting the growth process of plants

Respecting the growth process of marijuana plants is crucial to achieving the best results. Each phase of the plant's life cycle has its own needs for light, water, and nutrients. If these specific needs are ignored, the plant may not develop properly, which can lead to a significant reduction in the quality and quantity of the harvest.

At the same time, understanding each stage of growth helps growers identify and fix problems early. For example, detecting nutrient deficiencies or diseases during the vegetative phase allows corrective measures to be taken before they seriously affect the plant. This not only ensures a healthier plant, but also maximizes the final yield.

Duration of a complete marijuana growing cycle

The complete marijuana growing cycle can vary depending on the strain and growing conditions , but is generally divided into four main phases . Each of these stages requires special attention to ensure healthy plant growth.

Marijuana Germination Phase (2 to 10 days)

The germination phase is the first crucial step in the life cycle of the marijuana plant. During this stage, the seeds become hydrated and begin to split open, allowing the radicle, or primary root, to emerge. This phase usually lasts between 2 and 10 days and it is essential to provide a humid and warm environment so that the seeds can germinate properly.

It is vital to use high quality seeds and maintain a constant temperature between 20 and 25 degrees Celsius. Seeds can be germinated on moist paper, jiffy pellets, or directly into nutrient-rich soil. Once roots begin to develop, the plant is ready to be transplanted into its final growing medium.

Marijuana Seedling Phase (2 to 3 weeks)

The seedling phase begins once the seeds have germinated and the first pair of true leaves have developed. This stage lasts approximately 2 to 3 weeks. During this time, the marijuana plant is particularly vulnerable and requires optimal light, humidity, and nutrient conditions to develop properly.

During the seedling phase, it is crucial to provide adequate lighting with soft light and to maintain soil moisture without saturating it. Seedlings need a warm and humid environment, similar to that of the germination phase. Care should be taken not to overfeed them with strong fertilizers, as their roots are still delicate and can be easily damaged.

Vegetative phase of marijuana (3 to 15 weeks)

The vegetative phase is where the marijuana plant really begins to grow and develop. This stage can last from 3 to 15 weeks, depending on the strain and growing conditions. During this phase, plants require a lot of light and nutrients to develop strong leaves and stems.

At this stage, it is important to provide a proper light cycle , typically 18 hours of light and 6 hours of darkness per day. Additionally, plants need a nitrogen-rich fertilization regimen to encourage vigorous growth. Proper watering is essential to avoid water stress, and training plants to maximize growing space is advisable.

Marijuana Flowering Phase (7 to 14 weeks)

The flowering phase is the final stage of the marijuana growth cycle and is where plants begin to produce flowers or buds. This phase lasts between 7 and 14 weeks and requires a change in the light cycle to 12 hours of light and 12 hours of darkness to stimulate flowering.

During this phase, it is crucial to adjust fertilization to provide more phosphorus and potassium, and less nitrogen. Plants need a controlled environment with good air circulation and moderate humidity to prevent mold and disease. Closely observing plants during this phase helps determine the optimal time for harvest.

Understanding and respecting the growth phases of cannabis plants is essential for any grower who wants to maximize their harvest. Each stage, from germination to flowering, has its own specific light, water, and nutrient needs.

At Grow Industry, we are committed to helping you achieve success at every step of the process. Visit our online store to find all the products and tools you need for quality growing. Additionally, our physical stores in Reus and Vilafranca del Penedès offer a variety of seeds and expert advice to ensure your plants grow healthy and strong.