Dyna-Gro Feeding Schedule: The Foliage-Pro, Grow & Bloom Chart Explained
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Dyna-Gro Feeding Schedule: The Foliage-Pro, Grow & Bloom Chart Explained
Dyna-Gro doesn't hand you a week-by-week chart the way FoxFarm or CYCO do. Instead, it publishes a dosing range, typically a quarter teaspoon to one teaspoon per gallon, and expects you to land on the right number by watching your plant rather than following a calendar. That's a genuinely different philosophy from most of the feed charts on this site, and it's worth understanding on its own terms before you buy in. Here's what Dyna-Gro actually recommends, in real numbers, and why the brand builds it this way. We don't upsell.
The 30-Second Answer
- There's no official week-by-week cannabis chart. Dyna-Gro doses as a range you adjust by watching the plant, not a fixed calendar like most other lines we carry.
- Two ways to run it: the simple path (Liquid Grow through veg, Liquid Bloom through flower) or the one-bottle path (Foliage-Pro alone through veg, then Bloom for flower).
- Common cannabis-specific rates: 1/2 tsp/gal for the first two weeks after germination, then 1 tsp/gal for the rest of veg and right through flower.
- Pro-TeKt and Mag-Pro are optional add-ons, dosed at a fraction of the base rate, not required to get a full result from either path.
We stock the full Dyna-Gro line and can help you figure out which path actually fits how you grow. We don't upsell.
Why there's no fixed week-by-week chart
Every other nutrient line on this site publishes some version of a locked schedule: specific products at specific doses on specific weeks. Dyna-Gro is built differently on purpose. It's a highly concentrated, fully soluble liquid formula, and the brand's own guidance is to start light, watch how the plant responds over the following few days, and adjust the dose up or down from there rather than following a rigid calendar regardless of what the plant is showing you. That's a real design choice, not a gap in their documentation, and Dyna-Gro maintains an online nutrient calculator specifically because the "right" dose depends on your water, your medium, and your plant's stage more than it depends on a week number.
The two ways to run Dyna-Gro
The simple path uses two bottles total for the whole cycle, Liquid Grow through vegetative growth, then a straight switch to Liquid Bloom for flowering. The Foliage-Pro path swaps in Foliage-Pro for the vegetative stage instead of Liquid Grow, still switching to Bloom at flip. Foliage-Pro is a complete standalone formula, it includes a broader micronutrient package than Liquid Grow alone, which is why some growers treat it as the "better" of the two vegetative options, though Liquid Grow paired with Pro-TeKt covers the same core nutritional bases for less money per bottle. Neither path is wrong, they're genuinely two different ways to reach a similar result, and the right one mostly comes down to whether you'd rather run one bottle or two through veg.
What one bottle actually gets you
Dyna-Gro's doses are small enough that the math is worth doing before the price tag scares you off. A 1-gallon bottle holds 128 fluid ounces, and at 1 teaspoon per gallon of feed, roughly a sixth of a fluid ounce per gallon, that single bottle makes something in the neighborhood of 768 gallons of finished feeding solution. Compare that to a heavier-feeding line where a quart bottle might only stretch to 30 or 40 gallons, and the higher sticker price on a Dyna-Gro bottle starts to look a lot more reasonable once you price it per gallon of actual feed rather than per bottle.
What the line costs to run
The core two-bottle path, Liquid Grow and Liquid Bloom, runs $59.90 per gallon each. Foliage-Pro, the one-bottle veg alternative, costs a bit more per gallon at $66.57, reflecting its broader micronutrient package. Pro-TeKt runs $46.52 per gallon and, because it's dosed even lighter than the base nutrients, lasts a very long time once you've bought it. Mag-Pro is genuinely optional rather than required by either path, and since both are dosed in fractions of a teaspoon per gallon, none of these bottles need replacing often even on a full-size grow.
Adjusting for soil, coco, and recirculating hydro
The tsp-per-gallon numbers above are a reasonable starting point regardless of medium, but the medium itself changes how forgiving that dose is. Soil buffers nutrient swings the most, since the substrate itself holds and releases minerals gradually, which is part of why soil growers can often run the upper end of the range without much drama. Coco coir holds almost no nutrient buffer of its own, it's closer to a soilless hydro medium than true soil, so swings in your mixed strength show up in the plant faster, and it's worth starting at the lower end of the range and watching runoff PPM before pushing toward 1 teaspoon per gallon. Fully recirculating hydro systems are the least forgiving of the three, since the same reservoir feeds the plant continuously rather than draining away between waterings, so any dosing error compounds over days instead of resetting at the next watering.
None of this changes the base numbers dramatically, most growers across all three mediums land somewhere in the same 1/2 to 1 teaspoon per gallon range, but it does change how much room you have for error and how closely you should watch runoff or reservoir PPM in the first week after any dose change. If you're new to Dyna-Gro and unsure which end of the range to start at, the more forgiving choice is always to start low and add rather than start high and try to walk it back after the plant already shows stress.
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Where Dyna-Gro fits if you're used to a locked chart
Growers coming from a line like FoxFarm or CYCO, where every week has a specific number attached, sometimes find Dyna-Gro's range-based approach unsettling at first, there's no chart telling you exactly what to mix on week 6. In practice, most growers land on the same handful of numbers, roughly the ones shown above, and stop thinking about it much after the first cycle. The tradeoff is real, though: a locked chart is easier to follow blindly, while Dyna-Gro asks you to actually look at your plant and adjust, which is more work up front but tends to reward growers who are already paying attention to their crop for other reasons.
If you'd rather not build your own dosing table from scratch, Dyna-Gro's own nutrient calculator on their website will generate a recommendation based on your specific growing method and water source, and it's worth running before your first mix if the range above feels too open-ended to start from cold.
What We'd Tell You at the Counter
Start at 1/2 teaspoon per gallon for the first two weeks, whichever path you pick, and step up to 1 teaspoon per gallon once your plant is established and showing healthy growth. Pick Foliage-Pro if you'd rather run one bottle through veg, or Liquid Grow plus Pro-TeKt if you want the lower-cost option and don't mind mixing two. Either way, don't skip watching the plant for the first week or two of any new feed, since that's the actual mechanism Dyna-Gro's whole system is built around, not a chart. We stock the full line and are glad to help you land on your starting numbers. We don't upsell.
Frequently asked questions
What is the Dyna-Gro feeding schedule?
Dyna-Gro doesn't publish a fixed week-by-week cannabis chart. Common cannabis-specific rates are 1/2 teaspoon per gallon for the first two weeks after germination, then 1 teaspoon per gallon for the rest of vegetative growth and through flowering with Liquid Bloom, adjusted by watching how the plant responds rather than following a locked calendar.
Why doesn't Dyna-Gro publish a week-by-week chart?
Dyna-Gro is a highly concentrated, fully soluble formula, and the brand's guidance is to dose within a range and adjust based on plant response, water source, and growing medium, rather than a one-size-fits-all calendar. The brand maintains an online nutrient calculator for growers who want a more specific starting recommendation.
What's the difference between Liquid Grow and Foliage-Pro?
Liquid Grow is the standard vegetative-stage base nutrient. Foliage-Pro is a complete standalone formula with a broader micronutrient package, used as a one-bottle alternative to running Liquid Grow with Pro-TeKt separately. Both switch to Liquid Bloom at the start of flowering.
Do I need Pro-TeKt and Mag-Pro?
No, both are optional additions rather than required components. Pro-TeKt is a silicon supplement dosed at roughly 1/4 to 1 teaspoon per gallon with every watering. Mag-Pro is a calcium-magnesium supplement dosed in a similar range, commonly added from around week 2 of flowering by growers who choose to use it.
How long does one bottle of Dyna-Gro actually last?
A 1-gallon bottle dosed at 1 teaspoon per gallon of feed makes roughly 768 gallons of finished feeding solution, since the doses are small fractions of a fluid ounce per gallon. That's why the per-bottle price is higher than some other lines while the actual per-feeding cost stays low.
Whether you run the simple two-bottle path or the one-bottle Foliage-Pro route, the full Dyna-Gro line lives in the Modern Farms catalog. Because, as always, we don't upsell.
For informational and educational purposes only. Dosing shown reflects cannabis-focused grower guidance and Dyna-Gro's general product-application literature at time of writing, not an official manufacturer week-by-week cannabis chart; always confirm current rates against the product label and Dyna-Gro's own nutrient calculator. Product names, pricing, and specifications reflect our current catalog and are subject to change.