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Last Updated on by Aardvark

There are a lot of reasons to give growing your own cannabis a try. Regardless of whether you’d like to grow the herb for medicinal or recreational purposes, tending to your own cannabis plants can be rewarding for weed growing newbies and green thumbs alike, and may even be more affordable in the long run than purchasing marijuana at your local dispensary.

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However, growing cannabis is not exactly like taking care of a potted plant, and one thing a houseplant certainly does not need is a deft hand to guide it through its grow cycles. After all, daisies will bloom if you can at least remember to give them some water and sun. Cannabis? Not so much. 

To grow cannabis that can be consumed for its intended purpose, you’ve not only got to lead the plant through its many stages from germination to curing, but your plants require both attention and time. Which begs the logical question, how long does it take to grow marijuana plants? Let’s dig in.

The very short answer is – that depends on whether you’re growing indoor, outdoor, greenhouse, coco, or hydroponic weed. Grow times for cannabis plants vary widely, but on average, expect about three-to-five months for indoor grows. However, there are many factors that could add or subtract from that range, including whether you choose to grow from a clone or a seedling, the target yield (how much consumable product) and the growing method you’ve chosen.

A very loose breakdown of a growing timeline could look like this:

Basic Cannabis Cultivation Timeline:

  • Seed germination: 1-7 days
  • Vegetative stage, when the plant is growing just stems and leaves: three weeks to eight weeks or more
  • Flowering stage, when buds start to appear: five weeks to sixteen weeks or longer
  • Harvesting, drying, and curing: two to four weeks

But the number one determinant of growing time depends on whether you’re growing sativa, indica, or hybrid cannabis strains. Let’s take a look at some average grow times for each.

Cultivation Time for Different Cannabis Plants

Indica

For those looking to grow cannabis more quickly or achieve higher yielding strains, indica is the way to go. With a shorter flowering period – about eight-to-twelve weeks – plus a generally higher end yield, growers often prefer them because they can be cultivated in more frequent cycles indoors, while outdoor growers can time several growing cycles before the weather turns cold.

Another benefit of growing indica seeds is that they tend to grow shorter and bushier than sativas, making them a better fit for indoor setups or growing in a backyard garden.

Sativa

This cerebral and uplifting cannabis variety poses more challenges than growing indica. In addition to their longer ten-to-twelve week flowering period, plants grown from sativa seeds tend to produce a smaller yield (although this is certainly not true of all sativa strains).

Sativa

Sativa plants can be longer, taller, and thinner than indica plants.

Sativas can also grow to be very tall, up to 20 feet in an outdoor setting, which makes them difficult to conceal from neighbors in an outdoor grow setting. Even when confined inside, they may still grow long and lanky, a challenge for anyone trying to manage a small grow space.

Hybrid

A genetic mix of both indica and sativa strains, the growing time for hybrid marijuana strains may vary depending on which way the genetics lean.

Since hybrid seeds are a true blend of both sativa and indica, cultivators often prefer to grow them because of their higher output, generally faster growing time, and consumer appeal.

On average, hybrids tend to grow faster in the vegetative stage like a sativa, but may have a shorter flowering period like indica, about six-to-ten weeks. 

Frequently Asked Questions about Cannabis Plant Growth

What is the fastest you can grow weed?

One seed company says they have a strain that can go from seed to harvest in 49 days. Before you buy seeds from any company, be sure to do your own research on quality and reputability, and make sure you’re getting a strain that suits your consumption habits and preferences. 

Is there a way to speed up cannabis growth?

There are a couple of hacks that could speed up cannabis growth, including growing autoflowering hybrids, growing from clones instead of seeds, growing hydroponic weed, and changing up the stressors put on the plant (although this option is probably best left to more experienced growers).


Do you have any experience growing cannabis at home? How long did it take you from seed to harvest? Share your stories in the comments below.

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By Aardvark

How's it going fellow growers and smokers! I'm the Aardvark and have been growing and doing grow shows online for many years now. I have helped various companies launch as well as helped test grow for specific breeders trying to prove out certain strains and traits.