Sigma Roof Vent Accesories This product comes strictly as

This product comes strictly as the extension for the Planta Sungrow and Planta Urban models

Engineered for adaptability

A Powerful Growing Tower for Home Gardeners

Drainage - place a layer of 1-3cm Expanded Clay Pebbles on the bottom of a pot or planter (depending on container size) and then add the most appropriate substrate for each type of plant

Sigma Roof Vent Accesories This product comes strictly asPlease note: this window only fits Sigma Greenhouse models. The Planta Sigma Ventilation Window is a fantastic add on for your Sigma Greenhouse. It will efficiently increase air circulation, maintaining a comfortable temperature, which is essential for healthy plant growth and disease control. The number of suggested windows is determined by the size of the greenhouse, the environment and growing zone in which you live, and the plants you would like