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Cannabis fertilizer and nutrients
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More about cannabis nutrients
These split into base nutrients and additives, and it is worth knowing which one you are looking at. A base line may be one bottle, two parts or three, and dry powders cost less to ship than liquids but need mixing. Check whether a product is aimed at soil, coco or recirculating water, because the same label can behave differently in each. Cal-mag and pH adjusters are usually sold separately.
Nutrients are a recurring cost in a way most of the growing aisle is not, so growers tend to buy them alongside meters and testers to see whether a mix landed where they wanted. Beginners often stay with whatever line matches their medium, while longtime growers mix and match. Leafly's growing guides cover how the pieces fit together.
Frequently Asked Questions about cannabis nutrients
What are cannabis nutrients and what do the numbers on the label mean?
Cannabis nutrients are fertilizers formulated around the plant's growth stages. The three numbers on a label are NPK: nitrogen, phosphorus, and potassium, the macronutrients used in the largest amounts. Calcium, magnesium, and sulfur come next, followed by micronutrients such as iron, zinc, and manganese in trace quantities. Where home cultivation is legal, these arrive as liquid concentrates, dry salts, or slow-release organic amendments. Most product lines split into a base (typically two or three bottles you mix in shifting ratios) plus supplements like cal-mag, silica, root additives, and bloom boosters. You dilute to a target strength measured as EC or PPM, then check and adjust pH before feeding. Manufacturers publish a feeding chart giving amounts per gallon by week, which is a starting point rather than a rule, since plant size, medium, and water hardness all shift the real numbers.
How does a feeding schedule change between veg and flower?
Vegetative growth runs nitrogen-heavy to build leaves and stems. Once plants flip to flower, nitrogen comes down while phosphorus and potassium go up to support bud development, and calcium and magnesium demand rises alongside. Overall strength usually climbs through early flower, then tapers. Salts build up in the medium over a run, so growers flush with plain pH-adjusted water when runoff EC climbs or leaf tips start to burn.
Is cannabis plant food sold near me?
Nutrient lines are stocked by hydroponics stores, garden centers, agricultural suppliers, and online retailers. Browse nutrients on Leafly to compare base and supplement lines, then check which licensed dispensaries near you also sell a few grow supplies.