Canna Magnesium 7% Mononutrient Additive (Mg) – Rapid Deficiency Correction & Flowering Boost

Canna Magnesium 7% Mononutrient Additive is your secret weapon against the yellow-leaf blues, delivering a potent, fast-acting dose of essential magnesium directly to your plants' roots and leaves.

Ever notice those rusty brown spots or pale yellow patches creeping across your older fan leaves? That's your plant screaming for magnesium. It's not just an aesthetic issue; it's a photosynthesis crisis. Without enough Mg, your plants can't produce chlorophyll efficiently, stunting growth and sabotaging your final yield. Ignore it, and you'll watch your hard work literally fade away, with spindly growth and airy, disappointing buds. But here's the fix: Canna Magnesium 7%. This isn't a band-aid; it's a targeted nutrient injection. Its liquid magnesium sulfate formula is engineered for immediate uptake, so you can see your plants green up and bounce back within hours, not days.

What This Powerful Additive Does For Your Garden

Think of magnesium as the central atom in your plant's chlorophyll molecule – it's the engine of photosynthesis. Canna Magnesium 7% directly fuels that engine. When you add it to your feed, you're not just correcting a deficiency; you're supercharging your plant's ability to convert light into energy. This translates to faster vegetative growth, stronger stems, and, most importantly, a more vigorous flowering phase that packs on weight and resin. It's particularly crucial if you're using reverse osmosis or very soft water, which are naturally low in magnesium, or growing in coco coir, which can lock it out.

Key Features & Benefits in a Nutshell

• 7% MgO & 14% SO3 Formula: Provides a highly concentrated source of bioavailable magnesium and sulfur for rapid correction and sustained plant health.
• Fast-Absorbing Liquid Form: Gets to work immediately, whether applied to the roots or as a foliar spray, showing visible improvements in plant color and vigor in just hours.
• Dual-Purpose Application: Acts as both an emergency treatment for acute magnesium deficiency and a supplementary booster to stimulate growth and flowering throughout the cycle.
• Prevents & Corrects Deficiencies: Stops the yellowing and spotting caused by Mg shortage, ensuring your plants stay dark green and photosynthetically active.
• Compatible with Canna Systems: Integrates seamlessly into any Canna feeding schedule (Terra, Coco, Hydro) and can be mixed with other Canna mononutrients for custom solutions.
• Essential for Chlorophyll: Directly supports chlorophyll production, which is fundamental for energy creation, overall plant health, and maximizing your yield potential.

How to Use It in a Few Simple Steps

Using Canna Magnesium 7% is straightforward. Always shake the bottle well before use. For a root application, simply add it to your nutrient solution. For a quick foliar fix, you can spray it directly onto the leaves.

1. Identify the Need: Look for interveinal chlorosis (yellowing between leaf veins) and rusty spots on older, lower leaves.
2. Prepare Your Solution: Add 1-2 ml of Canna Magnesium per liter of your irrigation water. Always check and adjust the final pH of your nutrient solution to the optimal range for your medium (5.5-6.5 for coco/hydro, 6.0-7.0 for soil).
3. Apply: Water your plants as normal with the fortified solution. For severe cases, a foliar spray at 1 ml/L can provide immediate relief.
4. Monitor & Adjust: Observe your plants over the next 24-48 hours. The greening effect is often rapid. Continue use as a supplement at a lower dose (e.g., 0.5-1 ml/L) if using soft water or in coco to prevent future issues.

Frequently Asked Questions

Can I mix Canna Magnesium with calcium fertilizers?

No, you should not mix concentrated liquid magnesium sulfate (like this product) directly with calcium-based fertilizers in a concentrated form, as it can cause precipitation. Always add each to your reservoir or watering can separately, diluting them well in water first.

How quickly will I see results?

When applied as a foliar spray, you can often see improvements in leaf color within a few hours. For root applications, visible recovery typically occurs within 1-3 days, depending on the severity of the deficiency.

My tap water is very hard. Do I still need this?

Possibly not. Hard water often contains significant calcium and magnesium. It's always best to test your water's EC and composition first. If you're using tap water and not seeing deficiency signs, you likely don't need a magnesium supplement.

What's the difference between this and CalMag supplements?

This is a pure magnesium (and sulfur) source. CalMag products contain both calcium and magnesium. Use Canna Magnesium 7% when you only have a magnesium issue. If you have concurrent calcium and magnesium deficiencies, a product like Canna Calmag Agent might be more appropriate.

Personal Experience of Pevgrow’s CEO (Alan)

I've been through the panic of a magnesium deficiency mid-flower, watching those beautiful sugar leaves start to pale. It's a gut punch. That's why I always keep a bottle of Canna Magnesium 7% on my shelf. What I love about it is its simplicity and speed. There's no guessing game. When I see those tell-tale signs, especially in my coco grows or when I'm pushing plants hard under intense LED lights, I mix up a batch at 1.5 ml/L and hit them with it. The turnaround is remarkable. Within a day or two, the yellowing stops spreading, and you can see the green returning.

My pro tip? Don't wait for a full-blown deficiency. If you're running a hungry strain or using light, nutrient-poor mixes, add a small, preventative dose (0.5 ml/L) to your feed every other watering. It's like an insurance policy for your chlorophyll. Just remember, more isn't better. An overdose can lock out calcium and cause its own set of problems. Stick to the chart, monitor your plants, and this bottle will be a lifesaver. I pair it with the rest of the Canna fertilizer line for a clean, predictable feed that lets the genetics shine without nutrient drama.