Beanstalk CRF CA-Fortify

Beanstalk CRF CA-Fortify

Regular price £34.95
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Beanstalk CRF CA-Fortify

CA-Fortify Cal-Mag fertiliser is used to prevent calcium deficiencies for fast growing crops. If you are growing calcium-hungry cultivars in coco or potting soil, Fortify is the solution. Best used in conjunction with both Beanstalk Absolute Flower and Beanstalk K-Boost.

The Sustainable Solution

While Beanstalk's CRF technology is not organic it does eliminate many environmental issues associated with conventional mineral fertilisers. The advanced polymer coating effectively controls nutrient release and prevents the fertiliser rapidly dissolving in the growing medium, reducing leaching and waterway pollution.

When growing with Beanstalk CRF, minimal run-off is required. When using liquid nutrients, growers typically aim for 10-20% run-off at each watering event, with Beanstalk you can cut this down to 5-10% run-off once a week! Using Beanstalk ensures efficient water usage and stops your fertiliser (and money) going down the drain.

One dose of Beanstalk Ag Controlled-Release Fertilizer (CRF) automatically and intelligently matches the nutrient requirements of your plants throughout their growing cycle.

No bottles. No powders. No mixing reservoirs. Simply blend the CRF into the growing medium when transplanting. Improve your efficiency, cut costs, simplify your grow and boost yields today!


What does CA-Fortify do?

Attention all coco growers! Designed for a 100-day release rate, this single-application, calcium/magnesium-fortifying additive is the plug-and-play product you have been searching for.

If you are using peat-free or coco substrate, Nitrogen draw-down can be an issue. The slow release N from CA-Fortify ensures Nitrogen is continually available to your plants throughout.

Simply mix into your growing medium when potting up and Beanstalk’s controlled release fertiliser will provide your crop with all the necessary minerals, micro and macronutrients that they need for maximum growth and yield.

With the Beanstalk program you can use growth stimulants, beneficial biological inoculants, and other additives such as silica. Just avoid using nutritional products.

For best results, use in conjunction with Beanstalk Absolute Flower and Beanstalk K-Boost.


How much CA-Fortify do I need?

Pot size 8L 11L 15L 18L 20L 22L 25L 30L 32L 39L 56L
Grams 10 14 19 23 25 28 31 38 40 49 70
Scoops 0.7 0.9 1.3 1.5 1.7 1.8 2.1 2.5 2.7 3.3 4.7


How to use?

To get the best from Beanstalk CRF products just follow these simple steps:

1. Fill the pot 2/3 or 3/4 with your chosen growing media, coco or potting soil.
2. Add the relevant dose of Beanstalk products.
3. Mix thoroughly.
4. Pot up the plant, then top up the remaining 1/3 or 1/4 with coco or soil.
5. Irrigate with water and, optionally, your preferred silica and non-NPK additives.


We aim to dispatch all orders made before 2PM the Same day. This excludes weekends and bank holidays.

All items are sent in plain secure packaging with no logos. Once dispatched you will receive tracking information. Average delivery time is 1-2 days after dispatch for UK customers. Please contact us if your order hasn't arrived within 5 working days from payment for UK customers and 7 working days for EU customers.

Mainland UK - Delivery is free when you spend over £65. Or £6.95 if the total order value is under £65. All orders are sent on next day working day delivery via DHL. 

NI/Scottish highland/Other non standard postcodes - Delivery is £12.95 All orders are sent on 48H delivery via DHl


We will replace any item that arrives damaged.

If your product arrives damaged. Please contact us immediately to claim a replacement.

A limited replacement warranty is offered on all our products. Please check the product listing for the exact warranty time given. If your unit becomes faulty please return it to us for a replacement.

Replacements will only be given once the faulty unit has been inspected.

Warranties are not given due to customer misuse. If we find your return to be in working order, or damaged due to misuse it will be returned to you and no replacement offered.

Proof of purchase must be shown.



We offer a 30 day cancellation policy. A 20% restocking fee will be applied to your order. Refunds can take up to 5 working days to process. 

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