Optic Foliar Overgrow Ready-to-Use Foliar Spray — Growth Enhancer with Lights-On Application
Best for: Growers wanting a multi-purpose foliar spray that actually works with the lights on, without the leaf burn hassle
Our thoughts
This is one of those products that solves a real problem. Most foliar sprays force you to spray in darkness and pray you don't miss a leaf. Overgrow sprays in full light, absorbs in minutes, and does four jobs at once. It's the kind of convenience we actually rate.
Optic Foliar Overgrow is a ready-to-use foliar spray that combines four separate products into one formula: nutrient boost, growth accelerant, rapid absorption tech, and mould prevention. No mixing, no guessing ratios, just spray during your lights-on cycle and watch plants respond within minutes. It corrects nutrient deficiencies, supports photosynthesis, and builds plant resilience against stress — all without the leaf burn issues that plague traditional foliar feeds.
How it compares
Overgrow sits in the premium convenience tier of foliar sprays.
- Only RTU spray on the market designed for lights-on application without burning leaves
- Combines four separate Optic Foliar products — you're getting a genuinely engineered formula, not a diluted compromise
- Faster visible results than most alternatives (5-10 minutes to leaf response)
- Works across seedlings, veg, and early flower without product swaps
- More convenient than concentrate sprays; more effective than basic nutrient sprays
Usage guidance
Seedlings and cuttings
Mist lightly every other day. Use light spray pressure to avoid waterlogging delicate growth.
Vegetative stage
Spray 2-3 times per week in full light, applying until light runoff appears on the leaf surface. Spray only the topside of leaves — Overgrow's transport technology handles absorption from the upper leaf surface.
Early to mid-flowering
Spray every 2-3 days, then taper to every other day as you approach the final 2 weeks. Stop applications 14 days before harvest.
Stress recovery
Use between regular feedings after training, defoliation, or when soil moisture prevents normal watering. Foliar feeding bypasses root uptake — useful when roots aren't ready but the plant needs support.
Key application rule
Spray during lights-on. This is the whole point — no fumbling in the dark, no rescheduling your grow day around spray windows. Transport tech means the leaf absorbs what it needs without burning.
Technical specifications
- Format: Ready-to-use (RTU) spray — no mixing required
- Available sizes: 32 oz (approx. 1L) and 4L bottles
- Total Nitrogen: 0.8%
- Nutrient profile: Full macro and micronutrient spectrum (NPK, calcium, magnesium, iron, zinc, manganese, boron)
- Additions: Organic vitamins, amino acids, carbohydrate sugars, vitamin B1
- Formula components: REV (nutrition), WATTS (photosynthesis boost), TRANSPORT (rapid absorption), mould-prevention pH adjustment
- pH: High pH formulation — no pH adjustment needed
- Application: Lights-on safe. Spray topside of leaves only.
Who this is for
- Growers tired of spraying in the dark or missing lights-off windows
- Anyone correcting nutrient deficiencies without pausing their feeding schedule
- Setups where plant stress (overwatering, training, defoliation) needs quick recovery support
- Growers running multiple rooms or tight schedules who value convenience
- Indoor hydroponic and soil growers wanting to boost photosynthesis and growth rates
- Anyone wanting a single multi-purpose spray instead of juggling separate products
Our take
Overgrow solves the biggest pain point in foliar feeding: the lights-off requirement. That alone makes it worth the investment. Add the multi-benefit formula and RTU convenience, and you've got a product that actually earns its shelf space.
If you're running foliar sprays or thinking about starting, this is a solid time to pick up. Does exactly what it should — corrects problems, boosts growth, and plays nice with your lights schedule.
