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how long for marijuana seeds to sprout

Autoflowering seeds are also popular with beginning growers. They are easy to grow because you don’t have to worry about light cycles and how much light a plant receives.

Many marijuana growers start autoflowers early in the season, and at a different time than a regular crop, so keep the season and climate in mind when growing and harvesting—your plants still need warmth to grow, and rain can give them bud rot. Consider growing in a greenhouse to protect them.

Pros and cons of growing autoflower

Seeds found in finished cannabis buds can develop for a number of reasons. For example, a male plant may have accidentally pollinated a flowering female during the growing process. But more commonly, they’re a sign of stress and can be attributed to high temperatures during the final stages of flowering or an exaggerated spike in climate or environment.

Training plants

Because training happens during vegetative growth, for autoflowering plants, this period could be as short as a few weeks, which means time is limited. Try topping your autoflowers after they have three nodes, and stop once they begin to flower. You will want to prune them lightly.

How long for marijuana seeds to sprout

If you’re struggling with germination, don’t worry. It’s a common problem for growers but fortunately, most issues are quite easily rectified with small environmental adjustments. Some of the most common problems include:

Let’s get the jargon out the way first. Simply put, germination is the development or growth of a plant from a seed or spore, usually after a period of dormancy (like if the seeds have been sitting in a jar to store them). It’s also known less scientifically as sprouting. During this process, your seed will crack open and sprout a single root, known as a tap root, before beginning the growth stages above the soil.

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Whether you’re growing cannabis or something else entirely, you can learn everything you need to know about how easy it is to grow with Grobo on our site and we’ve got tons of educational videos on our YouTube channel, including how to germinate seeds with Grobo.

Common Germination Problems

Need some help selecting seeds? Check out this video that covers the different types of seeds available on the market, and which strains may be best for you.

Certain species are known for having seeds that have a higher or lower germination rate. In general, plants that give off many seeds (such as dandelions) have a lower germination rate as the plants goal is to produce lots of seeds, not necessarily quality seeds. A plant that produces less seeds such as a geranium, will often have a higher germination rate as this plant produces fewer, higher quality seeds.

As well as water, temperature affects seed germination. In a natural outdoor environment with the changing seasons, the temperature will indicate to the seed that it’s the right time of year to grow. If your temperature is too low, your seed will stay dormant. While if the temperature is too high, your seed will suffer from heat stress or seed aging – both of which can cause weaker plants in the long run even if germination is successful. For most plants, springtime temperatures are usually what to aim for in germination stages (22-24ºC or 68-72ºF).

What Is Germination?

Exact advice will depend on which germination method you’ve chosen, but we’ve found there are two simple tips that work for all germination methods.

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In reality, without a successful way to germinate seeds, you’ll have nothing to work with.