Cannabis Vegetative Cycle

Cannabis Vegetative Cycle

The cannabis vegetative cycle is an exciting part of your plant’s life. By now, you have successfully germinated your seeds and have made it through the seedling stage in your cannabis grow. Now it’s time for the vegetation stage, also known as “veg” or “vegging.” Plant growth accelerates during the vegetation cycle, with cannabis plants often growing up to five inches in a single day. Because of this rapid growth, you must ensure that your cannabis plants are getting the right nutrients and plenty of water.


Supplying nitrogen to your plants during this cycle is vital. Nitrogen helps provide your plants with the protein and chlorophyll needed throughout the cannabis vegetative cycle. Depending on how your grow is set up, and how you feed your plants, there are tons of ways to monitor, balance, and boost your plants’ nitrogen levels.

Cannabis Vegetative Cycle Lighting

Make sure you are using the proper lighting throughout the vegetative cycle. Many cannabis grow lights have a vegetation mode (or switch) built-in to give you the appropriate light spectrum for your cannabis plant during this cycle. Make sure to research your lights before buying them.

Color Spectrum Effects - Growing Cannabis

Cannabis Vegetation Cycle Length

The length of the cannabis vegetative cycle will depend on the genetics of the seeds you have chosen to grow. For example, some Indica-dominant strains tend to grow slowly during the vegetative cycle, but mature quickly during the flowering cycle. In most cases, if your plants are healthy, the cannabis vegetation cycle should last between two and three weeks. This timeframe can vary depending on a multitude of external factors. If you are using any training techniques for your plants, such as topping or super cropping, this time may be extended depending on the methods used. If you are utilizing plant training methods, make sure to do so carefully and sparingly so as not to stunt the growth of the plants.

Photoperiod: 18-24 Hours Of Light Per Day

What’s Next?

If you are ready to start flowering your cannabis plants, please move on to the Cannabis Flowering Cycle.