Ultimate Harvest Combo

(5 customer reviews)


Availability: In Stock

The Ultimate Harvest Combo is a complete, balanced fertilizer for Veg and Bloom. This is the only product you need from seed to harvest which contains all the premium additives in one easy to use super soluble power. Save money and time by choosing Simply Professional Formula.


Vegetation Formula 7 -3 – 11

A complete nitrogen and protein rich fertilizer high in silica & aloe vera. Designed for strong root development and lush green growth use Vegetation Formula from the start.

Bloom Formula 5 -6 – 12

Bloom Formula is a complete phosphorus and potassium rich fertilizer high in seaweed and carbohydrates. Designed for high enzyme production are early trichome development.



Simply Professional’s All-In-One Formulas, Vegetation, Transition, Bloom & Boost, contains concentrated beneficial bacteria and fungi that produce enzymes that break down organics into available plant nutrients, biostimulants and natural plant growth hormones while protecting the rhizosphere from pathogens and parasites. Simply Professional Formulas meets the highest standards for heavy metal analysis and do not and will never contain synthetic plant growth regulators. Formulas are fortified with Molasses, Yucca, Humates, Amino Acids, Silica, Seaweed and Aloe Vera. Everything your plants require and desire for root stem foliage and bloom performance. Enjoy #SimplyProfessionalResults

Keep in mind that its more common to over feed than to under feed. Allow the top of your media to dry in-between watering then water completely and with runoff. Heavy feeding will require runoff, without it problems may occur. Run off is the excess water that exits the bottom of the grow container preventing nutrient accumulation.  Water with a mild nutrient solution (EC 0.6 / 300 ppm) anytime you suspect a nutrient issue. Normally water with 10% Runoff. Water when the top of your grow media shows signs of drying out, make sure roots get access to plenty of air & don’t overwater. With over-moist soil, you should water less often.

SimPro Formulas contain Cal-Mag. Additional Cal-Mag is typically NOT required. Some coco coir products are not buffered with Cal-Mag. Un-buffered coco coir will pull Cal-Mag out of solution causing deficiencies. Use SimPro Cal-Mag to buffer coco coir prior to use or as a supplement during vegetative growth. Cease Cal-Mag supplement during flower to avoid excess nitrogen.

High Performance Reverse Osmosis (RO) Water use with Simply Professional Formula

We have seen a wide range of performance with different reverse osmosis systems that cultivators use to filter their water. Some RO systems are extremely effective at removing all the minerals and carbonates from the source water. With this type of water and for best results we recommend that some minerals are replenished with Cal-Mag Formula before mixing in Simply Professional Vegetation & Transition Formula. Supplement Cal-Mag up to an EC of 0.3 – 0.4 (150 – 200 ppm).

Additionally with this highly purified water Simply Professional Formulas mix at low pH and outside of our recommended pH range of 5.5 – 7.5 For best results you will want to make sure the pH of your solution is above 5.5, use a high-quality pH up such as Simply Professional’s pH UP Formula. Use any pH up or pH down product sparingly and creep up on our desired pH target.

Directions For Use:

Click Here For Detailed Feed Chart

Mix 1/2 – 1 Tablespoon (5-10 grams) per 1 Gallon of Water.

Fill water container / reservoir before adding nutrients.

  • Foliar Feed                   EC 0.5 (250ppm US)  Weekly Prior to Bud Set
  • Clone / Seedling          EC 0.6 (300ppm US)  Every Watering / Use Bloom
  • Coco/Hydro                 EC 1.8 (900ppm US)  Every  Watering
  • Soil                                 EC1.0  (500ppm US)  Every Other Watering

5gm = 1 teaspoon = 5 milliliters



Weight 2.1 lbs
Dimensions 9 × 7 × 2 in

1lb each of Veg & Bloom, 25lb each of Veg & Bloom, 5lb each of Veg & Bloom

  1. Shawn Castro Ortiz

    Verified Owner

    10:10 I swear my plants are loving this and are just growing so fast and strong. So simple doesn’t get that easy.



    Wish there was an option for more stars. This stuff is amazing. My plants are thriving. Really really tight internodal spacing going into week 5 of veg. I’ve been using Sim pro at 100% strength ever sense the first week and haven’t had any issues with stunting / nutrient burn / lockout. My plants truly look amazing. Before stumbling upon simpro I was trying to find a nutrient line that wasn’t to much work (mixing 5 plus bottles per gal of h2o) and also a lineup that wasn’t gonna be ridiculously over priced and break my bank. And Simpro is just that product. It was taking me well over an hr to mix my nutrient solution and feed my ladies every other day and it was exhausting. I was waking up around 4 am just to have enough time to feed before leaving for work at 6. Simpro has literally cut that time in half and some more. It couldn’t be easier. I measure out one product. (Certain times in the plant life cycle such as seedling, week 1 of veg, and week 1 and 2 of transition to bloom calls for both veg and bloom powder) but still a million times easier and faster then other nutrients. Also works wonders as a foliar spray! After testing this product and literally seeing those #simplyprofessionalresults after EVERY feeding I can confidently say that I will use simpro for ALL of my future indoor cannabis grows. Thank you guys for putting out such an amazing product that isn’t centered around a cartoon label with an extremely high price tag. Sim pro is the truth fellas. Give it a try you’ll surely be happy you did!

  3. Shawn Castro-Ortiz

    Verified Owner

    Where do I start.

    Let’s start off with Rob prolly one the best down to earth person I met and when I say he knows he stuff. He knows his stuff so coming to him is just know you’ll get most prefect answer to your question. Now let’s talk about Simpro and what they do for you Garden. If haven’t had a chance than simply missing out because man oh man does simpro really does make it so simple and easy to feed my ladies at prefect ppm everytime and watch them grow and grow. So happy to have came across Simply Professional Formula and everything they have to offer. Definitely a loyal customer here and forever be embedded into Simpro

  4. Kush_Kween_420

    Verified Owner

    Newer grower with only 1.5 yrs experience. I started my journey with Simpro on grow # 4. Which has been my best grow by far! Huge, super dense, frosty colas. I have been only feeding once per week since veg and am almost to harvest. I drop my Simpro (following their feed recommendation / doseage chart) into my distilled water gallon bottle and shake. Add a little ph up, shake and done. Sooo easy!! And this allows me to feed straight distilled water every other time I’m not feeding. Making the entire process way easier and less time consuming. Did I mention I have never added cal mag to this grow?! I love the simplicity and my plants absolutely love everything the Simpro has to offer. Can not say enough good about not only the productbut the company. The knowledge, pure generosity and good intentions behind this company definitely have my support as a grower!!! Thanks Simpro!! #simplyprofessionalresults

  5. Jason Pimentel

    Verified Owner

    DAMN Simpro this is like steroids for plants I’ve been using for over a month now and I saw results next day plant had more growth looked vigorous I’m addicted to it!!! And my soul and plants love you guys for that and let me tell you how simple it is to use once a week for soil piece of cake never had I use a clean and efficient product

    Ig. Pimentelfamilyfarms

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