Flower & Bloom Nutrients

Here at Hydrobuilder, we have the best bloom nutrients to help your flowering plants meet their full potential. You’ll find your favorite brands and products at the lowest prices, including General Hydroponics FloraBloom, Botanicare PureBlend Pro Bloom, CNS17, and more!

What are bloom nutrients

Bloom nutrients are specifically used during the plants flowering stage. This is one of the two different types of plant nutrients, the other are veg nutrients.

As you can imagine, veg nutrients are to be fed during the vegtative stage of growth when your plants are producing thick branches and robust foliage. On the flipside, bloom nutrients are fed during the bloom cycle, when your plants start switching their energy to create potent, dense buds.

What nutrients make flower bloom?

The main nutrients that make flower bloom are potassium and phosphorus. But, nutrients aren’t responsible for making your plant bloom - your lighting schedule is.

No matter what you feed your plants, they won’t start blooming until you flip the lighting schedule to 12 hours on, 12 hours off. This simulates the changing of seasons from summer to fall outdoors, and signals your plants they need to start producing resinous flowers.

When to switch to bloom nutrients outdoors

The specific time of which you’ll switch from your veg nutrients over to the bloom nutrients differs depending on whether you grow indoors or outdoors.

If you grow indoors, you are in charge of when your plants start flowering. You’ll change the light cycle from 18/6 to 12/12, and then feed bloom nutrients. 

Your feeding schedule will also play a role in this, as after a set number of weeks vegging, you’ll swap to bloom nutes. However, most feeding schedules allow you to continue vegging as long as you like by simply repeating the final veg week until you are ready to flower.

But if you are growing outdoors, you have to follow the outdoor growing calendar. Your plants will flower much slower, starting when the days get shorter - which is after summer solstice. This typically occurs in late June.

Bloom Base Nutrients vs Bloom Additives

Bloom base nutrients are to be used as the main part of your feeding schedule during the flower stage. 

These have a nutrient ratio which is ideal for plants in the flowering stage, with lower levels of nitrogen and higher levels of phosphorus and potassium.

Bloom additives, referred to as bloom boosters more often, go above and beyond what your base nutrients provide your plant to push out even bigger, more potent flowers.

A lot of bloom boosters help enhance terpene and flavonoid production, leading to more aromatic, flavorful buds. 

Certain additives are referred to as flower hardeners, and are to be used in the final few weeks of flower. 

They do exactly what the name suggests they do, which is harden your flowers and increase the density. This increases the weight of your buds and the bag appeal.

What are the best bloom nutrients?

As we mentioned earlier, we have the best bloom nutrients online at the lowest prices you’ll find. We also offer world class service that will have you coming back for all your growing essentials.

We have an entire article on the best plant nutrients of the year if you are looking to buy an entire nutrient package. But, here are some of the top flowering nutrients we carry.

Botanicare Pure Blend Pro Bloom

Botanicare Pure Blend Pro Bloom is one of the most reliable, organic based one-part bloom nutrients. It provides the perfect nutrient ratios for flowering plants (1-4-5).

One thing that really helps set it apart is that it eliminates the plants’ exposure, and thus the consumer, to toxic heavy metals. 

It also increases your plants metabolic rate, so it has more energy to produce giant flowers packed with terpenes, flavonoids, and compounds. Here at Hydrobuilder, we carry both the soil version and the hydroponics version.

General Hydroponics FloraBloom

General Hydroponics is one of the most tried and true nutrient brands on the market, and their FloraBloom base nute is as good as it gets. Its incredibly simple, giving your plants everything they need and nothing they don’t.

It gives your plants super high levels of phosphorus, potassium, magnesium, and sulfur. It provides consistent results, and is used by the professionals for this reason.

Botanicare CNS17 Ripe and Bloom Nutrients

Botanicare CNS17 line is a great option for those who simply won’t compromise on quality. Ripe and Bloom are ultra concentrated and help grow great plants.

You’ll use Bloom up until the final weeks of flower, at which point you’ll switch over to Ripe to finish off your plants.

Need help choosing your bloom nutrients?

If you aren’t sure which bloom nutrients are best for you, we are here to help. Reach out to our experts, or check out our review of the best nutrients of 2020.

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