Bonnie Autoflower Vegetation Fertilizer Cronk Nutrients
Bonnie Autoflower Vegetation Fertilizer Cronk Nutrients
Bonnie Autoflower Vegetation Fertilizer Cronk Nutrients
Bonnie Autoflower Vegetation Fertilizer Cronk Nutrients
Bonnie Autoflower Vegetation Fertilizer Cronk Nutrients
Bonnie Autoflower Vegetation Fertilizer Cronk Nutrients

Bonnie Autoflower Vegetation Fertilizer

$14.88 CAD

Enhance your autoflower's vegetative stage with Bonnie, a premium fertilizer by Cronk Nutrients. Tailored for autoflowers with a 6-5-4 NPK ratio and vital micronutrients. Pair with CalMag for complete nutrition. Ideal for all grow mediums and plant types.

Size: 500mL


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Autoflower Vegetation Fertilizer

Boost your autoflower growth during the vegetative stage with Bonnie by Cronk Nutrients. This premium fertilizer has been specifically designed for autoflowers with a balanced NPK ratio of 6-5-4, essential micronutrients, and is hassle-free to use. Use it with our CalMag for calcium, magnesium, iron, and nitrogen supplementation. Safe for all grow mediums and plant types.

Attention growers: Bonnie by Cronk Nutrients is our premium autoflower vegetative nutrient that's a vital component of our autoflower nutrient regimen. Use Bonnie with our CalMag during the vegetative stage for optimal growth. During the flowering stage, use Clyde with our CalMag for the best results. Remember, Bonnie and Clyde, are used during different stages and are never used together at the same time.


Safe for All Plant Types & Grow Mediums

At Cronk Nutrients, we pride ourselves on creating fertilizers that are compatible with a wide range of plants and growing mediums.

  • All Cronk Nutrients'fertilizers are compatible with a wide range of plants, including hemp, vegetables, fruits, and flowers, making them a versatile choice for any grower.
  • Can be used in different growing mediums, including indoor or outdoor soil, hydroponics, and coco coir, ensuring that they work equally well in different types of setups.
  • You can be confident that you're using high-quality and safe products when you choose Cronk Nutrients fertilizers, which are designed to be effective and compatible with a variety of plants and growing methods.


Dilute the suggested amount as per the chart on the back of the bottle into at least 1 litre of water. Apply every other watering. Safe to use in conjunction with any other nutrients. Use for the majority of the plant's vegetation stage.

Conversions: 1 Teaspoon = 5mL | 1 Tablespoon = 15 mL | 1 Ounce = 30mL | 1 Cup = 240 mL

Guaranteed Analysis

Guaranteed Analysis


Total Nitrogen (N) – 6%

3% Nitrate Nitrogen (N)

3% Ammoniacal Nitrogen (N)

Available Phosphate (P2O5) – 5%

Soluble Potash (K2O) – 4%

Copper (Cu) – 0.01%

0.01% Chelated Copper (Cu) Iron (Fe) – 0.025%

0.025% Chelated Iron (Fe) Manganese (Mn) – 0.01%

0.01% Chelated Manganese (Mn) Zinc (Zn) – 0.01%

0.01% Chelated Zinc (Zn)

Derived from:Potassium Nitrate, Monoammonium Phosphate, Monopotassium Phosphate, Iron EDTA, Manganese EDTA, Zinc EDTA, Copper EDTA.

Safety Data

Safety Data Sheet

CLICK HERE for a copy of Cronk Nutrients Bonnie 6-5-4 SDS



Cronk Nutrients' online store ships all over Canada and the United States from Canada & the United States. If your country isn't a standard option, please contact us and we can get a shipping quote. We offer free shipping on any order in North America over $125* We ship via UPS, Purolator, FedEx, Canada Post or from our inventory at either or 

All orders are processed within 1 business day. 

Your order will be marked as fulfilled from the moment it’s been boxed up in the warehouse awaiting for the courier to pick it up. Once your order has been fulfilled, you will receive an email with your tracking number. Your tracking details will appear once the courier has processed the package.  CLICK HERE for more information about our shipping policy. 


Customer Reviews

Based on 4 reviews
Lionel Gumbs
Very good

I'm seeing good results so far being my first run with Cronk Nutrients, but loving the results so far


I'm looking to step up my game by trying something new

Vlad D

Give your plants every edge they need to thrive and grow. These seem to give you everything that should support your green thumb.

That guy who bought it

Pretty cool that there is now a nute dedicated to autos

Legal Disclaimer

At Cronk Nutrients, we are committed to providing high-quality liquid plant fertilizers suitable for a variety of horticultural applications. Our products are designed for legal and responsible use by home growers and gardening enthusiasts. We do not condone or promote the use of our products for illegal purposes.

Customers are responsible for adhering to their local and state laws regarding plant cultivation. It is the sole responsibility of the customer to ensure compliance with all applicable laws and regulations. Cronk Nutrients will not be liable for any misuse of our products in violation of any laws.

By purchasing our products, the customer acknowledges their obligation to comply with the legal standards set forth in their jurisdiction and agrees to use our products in accordance with these laws. Cronk Nutrients reserves the right to refuse service to anyone suspected of using our products for illegal cultivation.

Thank you for choosing Cronk Nutrients for your plant nutrition needs. Grow with confidence, grow legally.