Cbd Plants: Late Bloomers | ShunCy (2024)

Outdoor CBD plants, like other cannabis plants, flower when the days get shorter and the nights get longer. This is because the amount of light a cannabis plant receives affects its growth cycle. In the Northern Hemisphere, this usually happens after the summer solstice, which falls on 20 or 21 June. In the Southern Hemisphere, it happens after the December solstice, which falls on 20 or 21 December.

The flowering stage of a cannabis plant's life cycle can last from around 8 to 10 weeks, but the time it takes for a plant to flower depends on its genetics and environment. In general, cannabis plants can be harvested between September and November in the Northern Hemisphere, and between March and May in the Southern Hemisphere.

The flowering stage of outdoor cannabis plants is influenced by the number of daylight hours

The amount of daylight hours varies depending on the time of year and the hemisphere. In the Northern Hemisphere, the spring equinox, which marks the start of spring, occurs around March 21-22, while the summer solstice, which marks the longest day of the year, occurs around June 20-22. After the summer solstice, the days slowly become shorter, signalling the beginning of the bloom phase for cannabis plants.

During the vegetative stage, cannabis plants thrive with longer periods of light exposure. Indoor growers typically use an 18/6 light-to-dark ratio to encourage faster growth. However, during the flowering stage, most growers switch to a 12-hour light and 12-hour darkness schedule. This signals to the plants that summer is coming to an end and it's time to start flowering.

The start of the flowering period can also depend on the strain of cannabis being grown. Autoflowering seeds, for example, do not need a change in photoperiod to start flowering. Instead, they have developed their own automatic flowering system, allowing them to flower when they reach a certain size.

To ensure a successful outdoor cannabis grow, it's important for growers to understand the natural timeline and coordinate their efforts accordingly. This includes considering the geographic location, as the timing can vary depending on the region. Additionally, growers should pay attention to the different stages of their cannabis plants and prepare their growing area and plants adequately for the flowering phase.

Photoperiod feminised cannabis strains tend to flower when daylight hours shorten

Photoperiod feminised cannabis strains are influenced by the hours of light they receive. They generally require 18 hours or more of daily light to undergo vegetative growth, during which they grow roots, leaves, and branches, but not buds. When the daily light is reduced to around 12 hours, flowering begins.

Photoperiod feminised cannabis strains tend to enter bloom when they sense the day length shortening. Short daylight hours are an indication that autumn is approaching, and the plants respond with hormonal changes that trigger flowering. This is an evolutionary safeguard to ensure the plant has time to produce and ripen its seeds before the next season.

The timing of the flowering period depends on the hemisphere in which the plants are grown. In the northern hemisphere, the summer solstice, which marks the start of the flowering period, usually occurs around June 20-22, while in the southern hemisphere, it occurs around December 20-23.

The start of the flowering period outdoors also depends on the chosen cannabis strain. Some indica strains are ready to harvest at the beginning of September, while sativa strains are typically ready from December onwards.

To ensure optimal growth and flowering, outdoor growers need to consider factors such as geographic location, climate, and light exposure. It is important to understand the seasonal patterns and historical weather data for the specific region where the plants are grown. Additionally, protecting the plants from critters, pests, and extreme temperature changes is crucial for a successful harvest.

Autoflower strains initiate bloom according to their genetic composition

The flowering of autoflower cannabis plants is determined by their genetic composition, which is usually triggered around a month after seed germination. Unlike photoperiod feminised cannabis strains, which rely on sensing the shortening of daylight hours to initiate bloom, autoflowers are genetically programmed to flower at a specific time, typically between one and two months after germination. This genetic trait allows autoflowers to flower 'automatically' without the need for artificial manipulation of the growing environment or light hours.

Autoflowering cannabis, also known as day-neutral cannabis, switches from vegetative growth to the flowering stage based on age rather than the light-dark cycle required by photoperiod-dependent strains. This trait is inherited from Cannabis ruderalis, a wild subtype of cannabis native to the harsh climates of Russia, central Europe, and central Asia. By crossbreeding high-quality indica or sativa plants with ruderalis, breeders have developed autoflowering strains that flower automatically and independently of light hours.

The ability of autoflowers to flower according to their genetic composition offers several advantages. Firstly, autoflowers have a shorter time to harvest, typically taking less than 13 weeks from seed to harvest, with some varieties ready in as little as 7-8 weeks. Secondly, autoflowers can be kept short in stature, making them ideal for "stealth" growing and growing in small spaces. Additionally, autoflowers do not require separate vegetative and flowering environments, further simplifying the growing process.

The genetic composition of autoflowering strains also enables them to flower in cold climates with short summers and high light pollution without preventing flowering or causing hermaphroditism. This adaptability allows growers to produce multiple harvests outdoors in a single season. Furthermore, the short lifespan of autoflowers makes them more resilient and robust, making them a good choice for outdoor cultivation.

While most autoflowering seeds available on the market are feminised, some brands offer regular autoflowering seeds. Creating true autoflowering seeds from two quality, true-breeding autoflowering parent plants is relatively easy. However, breeding new autoflowering strains by hybridising with non-autoflowering strains can be more challenging due to the recessive nature of the autoflowering genetics.

The hemisphere you're in will determine when the daylight hours decrease

In the Northern Hemisphere, the summer solstice usually occurs around June 20-22, marking the longest day of the year. After this date, daylight hours start to decrease until fall begins. In the Southern Hemisphere, the summer solstice typically falls around December 20-23, and daylight hours will begin to shorten from this date.

The summer solstice marks a critical point in the life cycle of outdoor CBD plants. As the days get shorter, these plants sense the decrease in daylight hours, triggering hormonal changes that initiate the flowering phase. This process, known as photoperiodism, is a natural occurrence in certain plant types, where they use light cues to know when to grow and when to flower.

Therefore, understanding the hemisphere-specific timing of the summer solstice is crucial for growers to anticipate and prepare for the flowering stage of their outdoor CBD plants. By aligning their efforts with Mother Nature's schedule, growers can cultivate larger and more potent yields.

You can force outdoor cannabis plants to flower by reducing the amount of light they get

The flowering of cannabis plants is generally caused by an increase in the hours of darkness they receive. This is known as photoperiodism, a process that occurs in certain plant types, helping them to know when to grow and when to flower. Photoperiod cannabis plants usually start to flower at the end of summer when the days get shorter and the nights get longer.

However, it is possible to force outdoor cannabis plants to flower by reducing the amount of light they get. This is particularly useful for growers in cooler climates who want to avoid the early winter frosts and rain that could destroy their harvest. It can also be useful for those in warmer climates to prevent their plants from growing too large.

To force your outdoor plants to flower, you will need to reduce the amount of light they receive to 12 hours of uninterrupted darkness each day. Covering your plants with a light-proof tarp or tent is an effective way to do this. You can also move your plants into a garage or shed at night, as long as the area is completely light-proof. For larger-scale operations, an automated tarp or roof with a timer can be used to ensure your plants are covered at the same time every day.

When force-flowering, it is important to maintain good air circulation to prevent pests, fungi, and bacterial pathogens. It is also crucial to stick to a tight schedule and not miss a day, as changes to the light cycle can cause your plants to revert back to vegetative growth or become hermaphrodites.

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