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do autoflower plants need nutrients

For instance, if your nutrient chart recommends 5ml/liter, start with 2.5ml or 1.25 ml (1/2 or 1/4 strength) and watch how the plant responds. Some autoflowers, like the Tangie ‘Matic or Gorilla Glue, for example, are voracious feeders and require a stronger dose, but make sure you start with big doses only after experimenting with half-strength nutes at first.

Autoflowers don’t give you a lot of time, so it’s critical to plan beforehand. What medium are you going to use? Soilless, soil or hydroponics? What nutrients have you chosen? Have you grown autos before? Have you bought the lights? What about ventilation? Have you set up your grow room?

Sure, some growers grow autos just like photoperiod plants by transplanting them not once by twice! However, they are experienced growers that have attained success after several failures.

1) Prepare ahead

How to maximize yields in autoflowering plants?

2) Don’t take the risk of transplanting

LST is a method that requires bending the stems of the plant so that the light penetrates to the lower parts of the plant. Generally, autoflowers tend to grow one main massive cola while the rest of the plant produces small budlets known as popcorn buds.

More than anything else, genetics will play the biggest role in determining the final outcome of your grow operation. But what makes the right strain? Well, let’s start with your personal preferences, for example, what type of effect you want from your cannabis. If you’re smoking to get blazed with the best and the latest, you can’t go wrong with THC monsters like the super dank and potent Royal Cookies Automatic or Royal Gorilla Automatic, our automatic variants of two popular strains!

When starting your seeds, and for young plants, you can also use standard fluorescent lamps such as T5 lights. These use very little energy and don’t get warm, so there is no risk of burning your sensitive seedlings.


With all the benefits of growing autoflowers indoors, it’s not surprising that they are immensely popular, and not just among those new to cannabis growing. Here are some vital tips on how to best grow autoflowers indoors, so you can look forward to great harvests!

After your cannabis plants have sprouted, don’t feed them for at least two weeks. Even then, you may only want to give nutrients if a plant shows signs of a deficit, like yellow leaves. Autoflowers grown in standard potting mixes should do well all the way to flowering with no additional nutrients. From here, you can start to administer bloom-specific solutions.

You don’t need to harvest your entire plant all at once! Chances are, the top buds may be done earlier than some of the lower buds further away from your lights. These buds may need a little more time to ripen. So instead of taking your clippers and collecting them all, take only the topmost buds and allow the others a few days more to finish.

When the autoflowering marijuana plant begins showing signs of pre-flower, slowly decrease veg nutrient levels while increasing bloom food during the same intervals. This incremental change eliminates nutrient overload giving the plant time to adjust to the new feeding recipe.

Finally, potassium is required to stimulate early growth as it improves water transfer within the autoflowering plant. K strengthens plant tissues providing sturdiness to stalks and leaves while helping the auto build resistance to disease. Nutrient deficiencies of this essential element during vegetative growth will produce a sickly, poorly developed plant.

However, as the auto swiftly enters the pre-flower stage, changing the nutrient ratios to 5-10-10 communicates to the plant to redirect energy flow. Instead of focusing on growing leaves and stems, energy now should progress to building the flowering system.

How do Growing Mediums Affect Nutrient Supplementation?

Ruderalis genetics provide these compact plants with everything they need to survive. In fact, autoflowering cannabis strains will actually grow just fine when left alone.

As the autoflowering plant quickly progresses into the flowering phase, a gentle boost of phosphorus and potassium will promote massive bud growth development. Slowly increasing levels of P & K as the plant matures further ripens the flowers into thick, dense buds covered in crystal trichomes.

With that stated, however, there are some practical measures to follow, guaranteeing an ample harvest when growing autoflowering cannabis varieties. One of the most important criteria for a prized autoflower harvest is learning how to dial in a beneficial nutrient program in your grow room.

Some, but not all, cannabis nutrient products contain both secondary and trace elements in their formula. Always check the fertilizer label for the addition of these vital compounds when choosing the best nutrient package for your autoflowering cannabis plant.