The Effects of 24 Hours of Darkness During Flowering

Hello, green thumbs!  Brace yourself for a deep dive into the darkness – specifically, the effects of subjecting our precious buds to 24 hours of darkness during flowering.  Will it lead to explosive growth, or have you tumbled into the abyss?  Get ready to unravel this botanical mystery, and let’s shine some light on the…

The Effects of 24 Hours of Darkness During Flowering

The Importance of Light During Flowering

The Importance of Light During Flowering

In the emerald world of cannabis, light is everything. 

Photosynthesis, bud development, and the production of cannabinoids and terpenes are all glamorous cabaret performed under the spotlight of your grow lights.

Indeed, the spotlight shone on flowering cannabis plants is pivotal. 

The glitzy show of bud formation thrives on a careful balance of light and darkness. 

Think of it as a botanical ballet, where every twirl, plié, and pirouette has been precisely choreographed for optimal growth and resin production.

What Happens When Plants Stay in Darkness for 24 Hours?

Now, imagine if the curtain abruptly drops amidst the grand performance. 

The spotlight goes off, plunging our little performers into unending darkness for 24 hours. 

What happens, then?

Stalling Flowering Progress

First, your plants experience a sort of suspended animation. 

Like a paused movie, the flowering progress may be temporarily halted. 

As a result, your countdown to harvest might need to be recalibrated, leading to a potentially reduced yield

But hey, sometimes the best things in life are worth the wait!

Stress Response and Hormonal Changes

A sudden plunge into darkness can kickstart a plant’s stress response like you suddenly finding yourself locked in a dark room. 

It’s all about survival here, with a whirlwind of hormonal changes aimed at coping with this drastic shift. 

However, these hormonal shenanigans can impact bud development and the overall health of your plant. 

But remember, a bit of stress can sometimes lead to unexpected growth!

Potential Benefits and Risks

Potential Benefits and Risks

Now, let’s weigh the pros and cons. 

On the one hand, you’ve got anecdotes about the explosive growth and enhanced terpene profiles after a period of darkness. 

Some growers swear it’s like giving their plants a ‘kick up the arse’! 

On the flip side, there are potential risks to consider, like the increased susceptibility to pests or diseases. 

It’s a bit like a botanical Russian roulette, isn’t it?

How to Implement a Period of Darkness During Flowering

If you’re feeling adventurous and want to try out this dark magic, here’s some advice: proceed with caution

Think of it as an experimental cooking recipe – get your timing right, pay attention to your plant’s responses, and keep that pest spray ready!

Considerations for Experienced Growers

Now, experimenting with dark periods could be an exciting new frontier for you botanical maestros out there. 

After all, a little challenge never hurt anyone, right? 

Just remember to stay observant and nimble, ready to adjust your growing parameters immediately.



And that’s the long and short of it, my green-thumbed friends! 

The effects of 24 hours of darkness during flowering can be a mixed bag of outcomes. 

Like an uncharted trail, it might lead you to unseen heights, or it could have you retracing your steps. 

The key, as always, lies in knowledge, patience, and a dash of boldness. 

May your buds bloom bright and your harvests be plentiful!


How many hours of darkness does flowering start? 

Cannabis flowering usually occurs when plants experience more than 7 hours of darkness.

How many hours of darkness before flipping to flower? 

Before switching to the 12/12 flower cycle, leaving a 24- or 48-hour dark period is recommended.

Do buds grow in the dark? 

Yes, buds do grow in the dark. Darkness is critical in the flowering phase, stimulating the plant to produce buds.

How darkness is critical in flowering? 

Darkness is essential in flowering as it triggers the plant’s transition from vegetative growth to flower production.

About the Author

Share the Love: