Winter Growing

Winter brings more than just colder air — it also introduces challenges like dropping humidity, slower root-zone activity, and the need for precise environmental control. Without the right setup, plants can experience slower growth, stress from uneven temperatures, or poor airflow. With the right equipment, you can stabilise your grow room and keep plants thriving all season long.

Below we explore key gear and how each product helps maintain a reliable winter-growing environment.

Consistent water management is critical regardless of the season. The AC Infinity Water Sensor provides early alerts if water levels drop too low or if a leak develops, helping you avoid unnoticed drought stress or root-zone issues. This is especially valuable for larger or automated setups where continuous monitoring isn’t always practical.

Good airflow remains essential in winter. Our inline fan and ducting kits provide efficient exhaust ventilation, removing stale air and maintaining balanced humidity and oxygen levels. Paired with clip-on or oscillating circulation fans, they help ensure air moves evenly across the canopy, reducing the risk of mould and stagnant zones.

Maintaining optimal temperatures is critical in winter, and tube-style heaters are ideal for this. They provide gentle, even heat along the floor or walls of a grow room, avoiding the hot spots and dry air associated with fan heaters. Using multiple heaters strategically ensures consistent warmth throughout the space, protecting root zones and supporting stable plant growth.

The VIVOSUN range offers a complete ecosystem for winter-growing reliability. Key products include:

Inline fan and ducting kits — for consistent ventilation and humidity control.

Clip-on or oscillating circulation fans — to maintain airflow across all plants.

Dehumidifiers and humidifiers — moisture control for mould protection and VPD management.

Using a VIVOSUN-based setup ensures compatibility and simplifies environmental management, keeping temperatures stable, airflow consistent, and humidity under control — essential factors during winter.

Automated watering systems like the Autopot XXL maintain consistent hydration and nutrient delivery, reducing stress on plants during temperature swings. Large reservoirs and self-watering capabilities ensure roots are neither too dry nor waterlogged, supporting healthy growth throughout winter.

While not directly linked to temperature or humidity, Zip-Zag black-design bags are perfect for keeping harvested material protected during winter. Their durable, airtight construction prevents degradation and helps maintain product quality, whether for short-term storage or post-harvest processing.

Even indoors, lighting efficiency is key. Faven Chroma under-canopy lights help reach lower leaves and bud sites that would otherwise receive less light. In winter, when overall plant metabolism can slow, ensuring every leaf receives usable light supports consistent growth and maximises potential yield.

Winter growing isn’t about relying on a single tool. The best results come from combining:

• Reliable ventilation and circulation
• Structural control via grow tents
• Gentle, even heating with tube heaters
• Automated water and nutrient management
• Targeted lighting for lower canopy areas

This creates a stable micro-environment that allows plants to continue growing efficiently, even in the coldest months.

Winter indoor growing doesn’t have to be a struggle. With the right combination of equipment you can maintain a controlled, consistent environment. Careful management of temperature, airflow, water, and lighting ensures plants thrive all season long, ready to deliver healthy growth and strong yields.