Foliar Feeding Indoors: Can You Spray With Lights On?

Read the claim for the actual product

Monkey Mist is safe to spray with lights on, day or night, according to its supplied product information. That is a Monkey Mist instruction, not a general statement that every foliar feed or spray should be used under lights. Other products can have different directions. The distinction matters when a grower changes bottles but keeps an old habit. Look at the product being used, its intended stage and its instructions, rather than relying on a rule picked up for a different formulation.

No mixing, no reservoir maths

Monkey Mist is ready to use. Mist evenly over the tops of the leaves; there is no need to spray the undersides. Use it in propagation, vegetative growth and early flower, weekly or whenever plants need a quick boost. The spray delivers fast-acting nutrients, vitamins and growth stimulants through the leaves. It does not have a per-10-litre reservoir dose and is intentionally absent from the liquid-feed calculator. Adding it to a water calculation would turn an easy foliar instruction into an invented dilution rate.

A boost for shoots and foliage

The supplied benefits include stronger shoots, fuller foliage, instant absorption and no downtime. Monkey Mist can support recovery from heat, drought or pest pressure. As with the rest of the range, recovery support is not a guarantee that a product resolves every underlying cause. Keep observing conditions and plant response. For a grower already following the Monkey base-feed schedule, Mist has a distinct delivery route: it complements the root-fed system through leaf application rather than replacing the reservoir’s base nutrients.

Read the chart as a complete programme

The Monkey feeding chart is written as a ratio per 10 litres of water. Its headings distinguish vegetative growth, bloom and flush, and the programme toggle selects PK or Resin. Before measuring anything, check that the week on the screen is the week you intended. A veg week and a bloom week can share a number but involve different base feeds. The chart’s ranges should remain ranges in your notes. A displayed interval does not mean that the website has secretly chosen one precise value for your crop. Read the full row and the surrounding programme rather than lifting a number out of context.

The calculator is a convenient way to change reservoir volume without changing the underlying chart. Enter litres, choose the week and programme, and read the millilitres for each included product. If you double the water volume, the confirmed amounts double; if you halve it, they halve. A product without a confirmed dose is not automatically assigned one. This simple boundary is important: arithmetic can scale an instruction, but it cannot supply missing product guidance.

Keep water, medium and environment in the picture

Monkey nutrients are intended for UK hard and soft water and for coco, soil and hydro. That gives a common framework, but it is still worth describing the grow accurately. Write down your medium, water source and programme so that a conversation with a stockist begins with useful information. For coco, the chart explicitly calls for Monkey Mag Cal. Its dose still needs confirmation, so ask rather than borrowing another brand’s figure. More information is not the same thing as more bottles. Clear inputs and a readable schedule are often the best starting point for a productive question.

The chart also carries environmental reference information. It lists pH 5.5–6.5, temperature 20–27°C, and week-specific EC and humidity values. Normal and closed-room EC are separate rows; do not silently substitute one for the other. These figures belong to the supplied chart. They are not a full diagnosis of every indoor setup. A useful grow record captures what was measured and when, not merely what a target row said. If something changes, that record helps explain the sequence without relying entirely on memory.

Avoid solving an unknown problem with an unknown dose

When advice is missing, keep the gap visible in your own decision-making. A product name, a photograph or a bottle size cannot confirm an NPK analysis or a dilution rate. Monkey’s supplied information deliberately leaves some details open: Mag Cal dosing, Ultra Zyme’s technical instructions and certain size or analysis confirmations. The website hides unconfirmed fields instead of presenting guesswork as a specification. Your stockist can help you obtain the latest confirmed directions. Until then, an honest unanswered question is more useful than a confident invented answer.

Likewise, do not assume every supplement should run throughout every week. Root Shoot, Boost, PK 9/18 and Resin each have their own chart windows. Stress has a consistent role through the twelve growth and bloom weeks, but not a listed flush dose. Monkey Mist is a ready-to-use leaf spray, not a reservoir additive with a scaled millilitre instruction. Keeping these jobs distinct helps the system stay simple. If the crop or timetable differs from the chart, describe that difference before asking for a recommendation.

A practical next step for your grow

Start by opening the feeding chart and checking the programme you plan to use. Then read the relevant product page for its description, mechanism, ingredients and confirmed instructions. Safety data sheets are linked where supplied. A safety sheet is valuable for handling information, but should not be treated as a substitute for the feeding programme. Contact Monkey or speak with a stockist if something is unclear. The range was developed by UK growers with more than two decades of nutrient-industry experience, with more than two years of development and testing before its 2021 launch.

The aim is a system that growers can understand, trust and use with confidence, not a bottle for every unexplained problem. Choose a starter or expanded kit around an understood role, retain the correct programme and measure the actual reservoir volume. Keep your notes straightforward enough that you can explain the grow to somebody else. That is science made simple in practice: accurate information, a consistent schedule and no invented shortcuts. UK born. Grower led. Built from experience.

Before buying, separate confirmed availability from the product description. There are no published prices in this catalogue, and a size listed for one product is not automatically a size offered for another. Root Shoot sizes require confirmation, while Monkey Mist sizes are not supplied. Ask your stockist about the product and size you actually need. A website photograph can help identify a bottle, but does not override the current verified product information.

A good question to Team Monkey includes the product name, whether the grow is in veg or bloom, the medium and the water source. If you are asking about the chart, include the programme and reservoir litres too. Those details make it easier to keep the answer connected to your actual grow. Do not turn advice for a different stage into a new instruction without checking it. The system is intended to stay understandable from start to finish: roots, shoots and fruits, with health-support products used for clear, distinct purposes.