Professors Nutrients Starter Kit (Complete Nutrient Kit)

What is the Professors Nutrients Starter Kit and what’s included?

This is a complete mineral-based nutrient bundle that includes Part A + B (base nutrients), Go Roots, Go Green, Grow Fast, Flower Boost, and Extreme Boost. It covers your full grow cycle—from roots to veg, bloom, and finishing. The “Starter Kit” usually refers to the Original lineup, not the Organic version.

Is the Professors Nutrients Starter Kit beginner-friendly?

Yes. It's easy to run if you stick to the basics: Part A + B every feed, Go Roots early, Flower Boost in bloom, and add others only as needed. Avoid piling on every booster at full strength, especially early on.

How do I mix Professors Nutrients Part A and B correctly?

Always add Part A to water first, mix well, then Part B. Follow with additives one at a time. Check EC, then adjust pH last. Never mix A and B together as concentrates—they can bind or precipitate, causing nutrient lockout.

What do each of the additives do, and when should I use them?

Go Roots: early root growth. Go Green: calcium/magnesium support for RO, coco, or LED setups. Grow Fast: veg accelerator (early veg only). Flower Boost: mid-bloom enhancer. Extreme Boost: strong finisher, used only late in flower. Follow the feed chart for timing and dosage.

Is Extreme Boost safe to use and can I stack it with other PK boosters?

Extreme Boost is potent and designed for late-stage use only. Don’t stack it with other PK boosters—it can cause burn, delay ripening, or trigger nutrient lockout. Use it exactly as the feed guide recommends.

What grow systems and media work with this kit?

It’s compatible with soil, coco, hydroponics, DWC, autopots, and drain-to-waste systems. Just adjust feeding frequency to your medium. Many growers also use it for cannabis, herbs, and fruiting vegetables—just scale strength to the plant type.

How often should I feed with the Professors Nutrients Starter Kit?

In coco, feed frequently with runoff to prevent salt buildup. In soil, feed less often—nutrients stay in the medium longer. Always monitor EC and runoff, and flush or taper late to reduce harshness if using strong bloom boosters.

What pH and EC should I aim for with this kit?

Target pH depends on your medium—typically 5.8–6.2 for coco/hydro, 6.2–6.8 for soil. Always adjust pH after adding all nutrients. An EC meter is highly recommended to avoid overfeeding, especially when using multiple boosters.

What should I do if plants show burning, yellowing, or stress?

Burn: reduce EC, simplify to just Part A + B, and improve runoff. Pale plants: check pH, EC, and salt buildup before adding boosters. Most issues are from overfeeding, pH swings, or environmental stress—not the base nutrients.

Is Go Green the same as Cal-Mag, and when should I use it?

Yes, it’s similar. Use Go Green with RO water, coco, or under intense LEDs. If your tap water is already hard, skip it or go light—too much can lead to clawed, dark green leaves. Watch your plants and respond accordingly.

Can the kit clog drippers or be used in reservoirs?

It’s generally clean, but avoid letting tanks sit for days. Stir or aerate regularly, use filters, and don’t overload boosters. Avoid combining peroxide with microbes—pick either a sterile or biological approach and stick to it.

Can I use the Professors Nutrients Starter Kit for seedlings and clones?

Yes, at very low strength. Use Go Roots early to encourage rooting. Wait until plants are established before adding Grow Fast or other boosters to avoid stunting or burn.

Does this kit work well under LED lighting?

Yes. Many LED setups increase demand for calcium and magnesium—Go Green helps here. Just monitor plant response, as LED intensity can amplify both strengths and issues in your nutrient plan.

How should I store the kit, and how long will it last?

Store bottles in a cool, dark place with lids sealed tight. Don’t freeze or overheat. Shelf life varies by usage, but for smaller gardens the kit can last a full cycle or more if used as directed.

What should I do if the Professors Nutrients Starter Kit arrives damaged?

Take clear photos of the packaging and bottles, then contact us at DrGreenthumbs.com.au immediately. We’ll help resolve it quickly and ensure you’re taken care of.