Aptus Nutrispray - Foliar-Applied Microelement Feed and Leaf Coating
Best for: Growers who want a quick, direct way to correct or top up microelement levels without waiting on root uptake.
Our thoughts
Foliar feeding is one of those techniques that gets overlooked because it feels like an extra step, but it's genuinely one of the fastest ways to get a struggling plant back on track. Nutrispray is a straightforward way to do it properly, and the small bottle sizes mean it's cheap to keep on hand for exactly those moments.
Aptus Nutrispray is a foliar-applied liquid fertilizer, blending natural surfactants, stimulators, and microelements into a spray that's absorbed directly through the leaf surface rather than through the roots. Because leaves can take up nutrients faster than roots in some situations, foliar feeding gives a quicker response than a root-only feed when a plant needs a boost or shows signs of a microelement shortfall.
Beyond the immediate feed, Nutrispray also leaves a natural coating on the leaf surface, which continues to protect and feed the plant after the initial spray has dried. It's diluted with water before use and sprayed across the whole leaf surface rather than applied as a root drench.
How it compares
Foliar sprays sit alongside root feeding as a complementary technique rather than competing directly with base nutrients.
- Versus not foliar feeding at all: relying on root uptake alone is fine under normal conditions, but a foliar spray like Nutrispray gives a faster route to correct a visible deficiency or give a general boost during stressful periods.
- Versus foliar ranges like Optic Foliar's product line: both approaches use leaf absorption to deliver nutrients quickly, though the exact blends of surfactants and microelements differ between brands.
- Versus a stronger root feed instead: pushing more nutrient through the roots doesn't address a leaf-level deficiency as directly or as quickly as spraying it straight onto the leaf surface.
It's a complementary tool rather than a replacement for your main feeding schedule, best used for targeted, fast-acting support.
Usage guidance
Foliar spraying has a few important rules that make the difference between a useful feed and leaf damage.
Dosage
Dilute at 2ml per litre of water and spray to cover the entire leaf surface; never apply at full strength.
Timing indoors
Spray during weeks 1, 3, and 5 of the bloom stage for general nutrition support, always with the grow lights switched off.
Timing outdoors
Spray once a week after planting, then move to roughly once a month through to harvest.
Lights off rule
Always spray with lights off. Spraying under active grow lights risks burning the leaf where water droplets magnify light intensity on the surface.
Technical specifications
- Brand: Aptus
- Type: Foliar-applied liquid fertilizer
- Key ingredients: Natural surfactants, stimulators, microelements
- Sizes available: 50ml, 150ml
- Dosage: 2ml per litre of water
- Application: Foliar spray, lights off
- Indoor schedule: Weeks 1, 3, 5 of bloom
- Outdoor schedule: Weekly after planting, then monthly to harvest
Who this is for
- Growers wanting a fast-acting way to correct a visible microelement deficiency
- Anyone growing outdoors who wants a simple monthly foliar top-up routine
- Indoor growers looking to add targeted support at key points across the bloom stage
Best suited as a supplement to a root feeding schedule rather than a sole source of nutrition.
Our take
Nutrispray is a handy, low-cost way to add a fast-acting layer of feeding on top of your normal schedule, and the leaf coating it leaves behind is a nice bit of extra value beyond the initial spray. The small bottle sizes mean it's not a big spend to keep in the cupboard for when you need it.
One we sell a lot of for growers who want a quick fix in their back pocket rather than waiting on a root feed to take effect.
