Cannabis Greenhouse Design

Cannabis greenhouse facility in Portugal

Greenhouse cannabis growing & all the rooms

Commercial cannabis cultivation has been refined over time to optimize production, control plant attributes, and maximize consistency. In this section of the website you will find the production stages and their designated rooms in the cannabis greenhouses or indoor facilities we build.

In nature, the life cycle of a cannabis plant follows a traditional path, starting with a seed and moving through stages like germination, growth, pollination, and seed production, only to repeat the growing cycle. In our cannabis greenhouses or indoor growing facilities we look at nature, technology and rules and regulations to tailor to the needs of the plants, but also at the commercial side of cannabis growing.

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Cannabis growing phases

What is the function of the different cannabis rooms?

Cannabis Mother Room

This room is designed to serve as a home base for the selected mother plants, carefully selected for their desirable characteristics. The cannabis mother plants, or simply “Mothers” are never allowed to flower. In this room they are constantly grown in vegetative conditions to produce the maximum amount of cuttings/clones.

Cannabis Clone Room

The clone room is the propagation room for the cuttings or clones taken from the Mothers. In this area, the conditions are designed for the small plants to develop roots. The best conditions are extremely humid ones, but perfectly balanced to avoid fungi and rot.

Cannabis Vegetative Room

After the cannabis cuttings or clones have developed a substantial root base, the plants need to grow: the vegetative phase as latest part of the propagation process. The “Veg” rooms are conditioned to ensure that the plants grow to their optimum size without flowering.

Cannabis Flower Room

Cannabis plants that have reached their desired size are either brought into a flower room or the conditions of the area are geared towards that of a dedicated flower room. Here the plants enter a generative phase by adapting light cycles. To avoid undesirable fungi, sickness or pests and to prepare for a flower that can properly be dried and cured, control over humidity is key.

Cannabis Drying Room

The cannabis drying room: After harvesting the fully developed “Flowers”, the plants are dried and cured to optimize the genetical characteristics. This is done in a specially designed cannabis drying room, that accurately reduces humidity levels over a set time.

Interior of a cannabis grow facility with controlled environment

Production stages & cannabis greenhouse design

Mother room for cannabis cultivation in greenhouse facility — Mother Room

(Genetic Store)

Clone room for cannabis propagation in greenhouse facility — Clone Room

(Propagation Phase)

High-pressure fogging system for cannabis cultivation — Veg Rooms

(Vegetative Stage)

Flowering room for cannabis cultivation in greenhouse facility — Flower Room

(Generative Phase)

Drying room for cannabis harvest in greenhouse facility — Drying Rooms

(Post Harvest)

Cannabis Greenhouse Layout

When we design a cannabis greenhouse facility with our clients, we devote a lot of time to get the room ratio's spot on. Each grower or client has its own methods and style of growing. The cultivation cycles, desired plant sizes, spacing and grow system all influence the ratios of the rooms in the greenhouse or cannabis grow facility.

A typical cannabis greenhouse or cultivation facility may use 50% to 75% of the facility's surface area for production areas. Within the production area, spaces can be roughly divided into the following proportions:

Rooms for plants in flower stage: ~60%

Plants in vegetative stage: ~15%

Mother rooms: ~10%

Clone rooms: ~2.5%

Drying rooms: ~12.5%

A grower’s business plan may determine room allocation by starting with a target annual yield for a facility—the number of pounds per year they hope to produce and the number of harvests required to achieve it—and work backwards. Rooms with plants in flower are the most important factor in that calculation and will thus dictate the amount of space required for the other rooms to support that production, as well as auxillary spaces such as hallways, offices, employee changing rooms and break areas.

For more insights into cannabis cultivation practices across Europe, explore our resources on cannabis in Italy, Spain, Germany, Netherlands, United Kingdom, Portugal, Greece, and France.