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Updated: Apr 22, 2021

As the cold weather rolls in, plants, both outdoor and indoor ones, become less active and need less nutrition and even less watering. How do plants know it’s time to go dormant? They can sense the decreasing daytime light levels as autumn days become shorter. It’s only natural that their biological activity during this period of time is limited as they are in their resting phase. So, unless it is a plant that flowers in winter, you should not water them and feed them as much as you do in the growing season.

How often can you use GROWO for indoor flowers and ornamentals during the winter season? As the top part of the plant goes dormant, the roots continue to absorb nutrients, though at a slower pace. Unlike mineral fertilizers, GROWO doesn’t cause salts to get accumulated in the soil. It is essentially a slow-release fertilizer that is used by a plant as needed. It also helps plants go through winter and protects them from plant diseases and harmful insects.

Generally, outdoor use of GROWO is stopped at some time in October as the temperature falls below +14C. Keep this in mind if you use GROWO for the plants on your balcony, as temperature on a glazed balcony can vary greatly. Moving your indoor plants away from drafts but also from hot radiators is important for creating a comfortable atmosphere. When you move them, though, make sure they still get as much natural light as possible.

Here is a simple table showing the frequency of indoor use of GROWO late fall through early spring.


Watering November-February

1: 100

1 time per month

Spraying November-February

1: 100

1 time per month


Watering November - February

1: 250 (1 cap on 2.5 liters of water)

Once in 2 months 60 ml under the root

We hope your houseplants get the best winter care possible!

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