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White Square Pot 18 x 18 x 25 cm. 5.5 liters is a lightweight container made of 100% recycled plastic with a raised bottom and drainage holes, designed for indoor cultivation. The light color reflects light, reduces substrate heating, and promotes a stable root system from early stages.

The White Square Pot 18 x 18 x 25 cm. 5.5 liters combines a compact format with useful depth for medium-sized plants in cannabis cultivation and indoor aromatic plants. The square body of 18 x 18 cm optimizes space on trays and tables, making it easy to create regular grids in indoor grow setups.
The white color helps keep the substrate at a lower temperature under intense lighting, which is valuable in grow tents and technical rooms.
The raised bottom speeds up water drainage through the bottom holes, preventing waterlogging and improving root oxygenation; at the same time, the anti-spiraling grooves guide roots downward and sideways for a more functional root ball.
With a capacity of 5.5 liters, it is versatile as a final container for compact plants or as an intermediate step before 7–11 L. It effortlessly integrates indoor accessories such as saucers, training nets, and drip irrigation systems.
At Hydroponics Blanes, online grow shop and trusted Grow Shop, it is a key piece for home and professional projects, with fast logistics and discreet shipping throughout Spain.
The white color reflects light and helps stabilize substrate temperature in LED or HPS environments. The 18 x 18 cm footprint allows high density per tray, improving PPFD uniformity and square meter efficiency. The height of 25 cm creates a balanced substrate column for frequent watering with controlled drainage, ideal for indoor cultivation of cannabis plants with compact genetics.
It is used for advanced rooting, growth, and flowering of medium-sized varieties, as well as for maintaining small mother plants or aromatic plants. The 5.5-liter volume balances moisture retention and aeration, reducing the risk of root fungi. The interior grooves limit spiraling and promote young, white, and active roots, with better water and nutrient uptake.
It works especially well with compatible growing trays and saucers, low-flow adjustable drippers, stakes, SCROG nets, labels, and soft rings. In indoor grow setups with automatic irrigation, the raised bottom and drainage holes facilitate clean runoff, drainage measurement, and EC/pH control. Complementing with aerated substrates (peat/coco with perlite) and reliable meters improves consistency from batch to batch.
1) Preparation: Add 1–2 cm of expanded clay or coarse perlite to enhance drainage. Fill with an airy mix and moisten evenly.
2) Transplanting/Sowing: Place the plant centered or seed at the appropriate depth. Gently compact to eliminate air pockets and keep the stem neck above the substrate line.
3) Watering and nutrition: Water until you get 10–20% runoff through the bottom holes. Adjust frequency according to stage, plant size, and ventilation. Monitor input and output pH and EC.
4) Indoor organization: Arrange in a grid inside trays to move complete groups. Rotate 90° every few days to even out light exposure.
5) Maintenance: Between cycles, empty, wash, and disinfect with a mild solution. Check for blockages in the drainage system.
The price of the White Square Pot 18 x 18 x 25 cm. 5.5 liters allows you to set up complete trays at a low cost. At Hydroponics Blanes there are packs with saucers, substrates, and drippers to optimize budget and time in indoor grow setups.
Available at Hydroponics Blanes, trusted Grow Shop and online grow shop with discreet shipping. Technical advice to choose containers and indoor accessories according to cannabis cultivation goals and other demanding species.
For organized and efficient projects, the White Square Pot 18 x 18 x 25 cm. 5.5 liters provides easy handling, irrigation control, and healthy roots.
The combination of 100% recycled plastic, anti-spiraling grooves, raised bottom, and drainage holes fits trays and work tables, facilitating routines in indoor cultivation of cannabis plants.
At Hydroponics Blanes, online grow shop with discreet shipping, it is easy to complete the setup with nets, stakes, and drip irrigation to move forward safely in grow tents and technical rooms.
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