But did you know there’s a type of cannabis that will make buds even if you leave your grow lights on for 24 hours a day?
However, in order to get most cannabis plants to start making buds, you need to give them at least 12 hours of complete darkness every night, which means grow lights need to be off for 12 hours/day. For some growers in a wintry climate, a 12-hour dark period (even during the day) will send the temperature plummeting too low.
Keep roots warm and up off the cold floor
This helps equalize day and night temperatures. Keeping grow lights on at night will keep plants warmer when it’s the coldest.
Some strains are much hardier than others when it comes to the cold. If possible, it helps to pick a cold-resistant strain. Learn where you can get seeds.
Strain Makes a Difference!
Temperatures are dropping and unfortunately, cannabis plants don’t like the cold. In fact, many strains start growing more slowly if the temperature gets under 60°F (15°C), and freezing temperatures can cause major injury or even death!
Be Prepared For When the Electricity Goes Out!
They are described as “auto-flowering” because these strains will automatically start making buds and be ready to harvest in about 3 months, no matter what light schedule they get! This lets you leave your grow lights on all day, every day, so your plants stay warm!
Cold Climate and Winter Growing Tips Temperatures are dropping and unfortunately, cannabis plants don’t like the cold. In fact, many strains start growing more slowly if the temperature gets
Here in Spain, the days begin getting longer on the 21 st of December, so you’ll need to sort something out if you don’t want a bunch of revegged plants. You can do a few things to prevent this:
When plants are under lights they behave quite differently, because although it may be winter your plants are getting the summer sun every day. They have the perfect climate and you can adjust the parameters as needed. It’s extremely hard to grow indoors during the summer without air conditioning, but it’s perfect for growing in the winter.
The most common winter grows are done in greenhouses. You can grow in flowerpots or straight into the ground because they won’t be as cold in the greenhouse as they would be outdoors. You’ll need to let them grow for around a month or month and a half indoors and then transplant your plants into the greenhouse where they can get a bit more heat at night time. You can also germinate them in the greenhouse from the get go around September, but your plants will definitely be smaller.
The first thing you’re going to need to think about is how plants grow and flower according to the amount of light they receive, and when the days begin to get shorter your plants should begin flowering. This works the other way around too; if your plants are flowering when the days start getting longer they’ll begin revegetating and they’ll go back into the growth period.
One of the most important things to keep in mind is that the temperature of the roots can’t go under 16º or they’ll stop absorbing nutrients, causing your plant to stop growing as much. Planting in flowerpots is not the same as planting straight into the ground; flowerpots are much more likely to get cold, whereas underneath the ground tends to be much warmer than above. Plants can but up with cold on their leaves as long as there’s no frost, but if the roots get cold you can kiss your harvest good bye.
If you’re planning on growing this winter you just need to follow these techniques and pay close attention to your plants, harvesting by the end of the year. Remember, tricking your plants with the light periods is something you can do all year round if you want to, not just during the winter.
- Grow them indoors during September and half-way through October place them in a greenhouse.
- Plant them later, meaning you’ll need to trick your plants with the light period.
- Germinate them in a greenhouse.
If you’re not growing outdoors all you can do is grow under sodium lights, where your plants will develop ferociously and will give you an amazing yield in record times.
If you want, you can make them flower whenever you want but you’ll need to trick them with lights and timers. You can plant whenever you want but keep in mind that after 20 days of growing you’ll need to block out the light somehow with a box, a cover or by sticking them in a dark room. They’ll need 12 hours of light and 12 hours of darkness, so every day at 7am for example you’ll need to take them out into the light and then at 7pm, stick them back into the dark. You’ll need to keep this up for the entire rest of the process until harvest day. Make sure you don’t mess up and forget once it’s flowering or it will begin to revegetate and stop flowering completely, ruining the quality of the half formed buds that you’ll end up with.
Growing cannabis in thw winter can be challenging, but we're here with some advice so you can bring your grow to life and get a decent yield.