Plant Mechanics Mega PK (Bio Stimulants + PK! 250ml / 1L / 5L)

What is Plant Mechanics Mega PK and how does it support flowering?

Plant Mechanics Mega PK is a high-strength phosphorus and potassium booster enriched with biostimulants and refined carboxylic acids. It’s designed to promote faster flower set, heavier blooms, and improved nutrient uptake during the peak bloom window.

When should I use Plant Mechanics Mega PK, and how often?

Use it from Week 4 to Week 7 of bloom, when flowers are bulking. Most growers run it with every feed during that window. Avoid starting too early or pushing late into ripening, as it may disrupt plant balance.

How much Plant Mechanics Mega PK should I use per feed?

Use 1 mL per litre of water. That’s 10 mL per 10L or 100 mL per 100L. Stick to this dosage unless stacking with other products, in which case reduce slightly and monitor EC closely.

Does Mega PK affect EC or pH, and how should I mix it?

Yes—it raises EC and can influence pH. Always mix in this order: water → base nutrients → Mega PK → other additives → check EC → pH last. Never mix concentrates directly together.

Can I use Plant Mechanics Mega PK with other nutrients and additives?

Yes, but be careful. You can use it with silica and Cal-Mag, but don’t stack it blindly with other PK boosters. If stacking, lower all dosages slightly and keep your EC and plant health in check.

Is Mega PK safe for soil, coco, hydro, and irrigation systems?

Yes—Mega PK is suitable for all major grow media including soil, coco, hydroponics, DWC, and drip systems. Just ensure proper mixing, keep tanks clean, and avoid letting solutions sit warm for days.

What results can I expect from using Mega PK?

Expect tighter, heavier blooms, stronger flower stacking, and increased flower site development. Many growers report visible results within 1–2 weeks of starting in the Week 4–7 bloom phase.

Can Mega PK burn plants or cause issues if overused?

Yes—like any strong PK booster, overuse can cause tip burn, dark or clawing leaves, and slowed bloom progression. Avoid stacking with other PK products unless you adjust your EC and monitor runoff.

Is Mega PK suitable for fruiting plants and living soil grows?

Yes—fruiting plants like tomatoes and chillies can benefit during their bulking stage. It can also be used in living soil, but go lighter and avoid overloading the microbial balance with strong salts.

Is Mega PK a good match for LED lighting setups?

Yes—LEDs often increase nutrient demand. Mega PK can support flower bulking in LED grows as long as environmental factors like light intensity, VPD, and root health are already dialled in.

How should I store Mega PK and prepare it for use?

Store sealed, in a cool, dark place. Shake well before each use. You can premix it into a tank, but fresher is better—especially in warm environments or when using multiple additives.

What sizes does Mega PK come in, and which should I buy?

Available in 250 mL, 1L, and 5L. Use 250 mL for trials or small grows, 1L for typical flower cycles, and 5L if you run large systems or multiple plants regularly.