Labs · Beta. Explore the tools with sample plants and editable inputs. Some plant comparisons use provisional values, not validated recommendations. Changes reset when you reload this page.

Indoor environment

Living room

Shared facts used by tools in this workspace.

LocationGothenburgOptional context

Temperature22.5 °CRoom thermometer

Humidity~45% RHEstimated default

Collection5 plantsIn this environment

Collection

Plants in this environment

Indoor tools

Read the room

Measurements in. Clear, traceable interpretation out.

Tool 01

Light

Daily photosynthetic light from intensity and duration.

Daily light integral10.8 mol·m⁻²·day⁻¹Derived

4 working matches; 1 possibly limited. Plant matching uses unverified prototype anchors.

Light inputs

PPFD

µmol·m⁻²·s⁻¹

Measured

Photoperiod

hours / day

User input

Light source Grow light Natural daylight

Daily light

PPFD × time10.8mol·m⁻²·day⁻¹Derived

Intensity 250 PPFDDuration 12 h

06121824 h

250 PPFD × 12 h × 0.0036 = 10.8 DLI

A good estimate for a consistent grow-light setup. DLI is a calculated quantity, not a universal plant rating.

Your plants at this light

Prototype matching only. Each plant now has a linked horticultural source, but numerical DLI response is not verified.

Tool 02

VPD

Atmospheric drying demand from shared temperature and humidity.

Vapor pressure deficit1.3 kPaDerived

Using measured temperature and estimated humidity.

Tool 03

Placement

Compare measured light positions and find better-supported matches for your plants.

Light map3 positions mappedCompared

5 plants compared with unverified prototype anchors—not evidence-backed DLI limits.

Tool 04

Feed mix

Copy what the bottle says. Get a usable mixing rate without invented precision.

For your watering can~1.3 mL into 2 LDerived from manufacturer estimate

Based on NPK 7–1–5 and the bottle instruction: 40 mL makes approximately 60 L.

Copy the label

No unit conversion needed before you start.

How is the dose written?

NPK on label

N P₂O₅ K₂O

Label providedStandard EU label: percentage by mass

Bottle contains

Label provided

Makes approximately

Manufacturer estimate

Your watering can

User inputChange this to the amount you are mixing now

Your mix

Do this now. Inspect the label meaning below.

Add to your watering can~1.3mL into 2 L of waterDerived from manufacturer estimate

Declared nutrient profile

NPK 7–1–5

Label provided

P₂O₅

K₂O

The bars compare the three label values with each other. They are not a plant suitability score.

Unknown

Nutrient concentration is not on this label

NPK is stated by mass. The mixing rate above is still usable. Weigh a known liquid volume only if an approximate mg/L calculation would help.

NPK changes the declared profile and, when product mass is known, the calculated mg/L. It still does not prove that the dose suits a plant.

Advanced EC measurement

Choose what you measured before interpreting the number.

Measurement context

Source water

mS/cm

Measured

Finished solution

mS/cm

Measured

EC increase—mS/cm

Repeatability check

What this tells you

The increase shows what this product added to your source water. It helps repeat a mix; it is not a universal plant target.

Enter both readings. Comma and point are both accepted.

Your plants

Calculation first. Plant interpretation only when evidence supports it.

5 plants in this environmentNo reviewed species-specific recommendation yetThe mixing calculation remains valid. A plant judgement needs relevant species, substrate and cultivation evidence.

Unknown

Living room

Plants in this environment

Read the room

Light

Light inputs

Daily light

Your plants at this light

VPD

Placement

Measured positions

Relative light map

What might fit here?

Where could my plants stand?

Feed mix

Copy the label

Your mix

NPK 7–1–5

Nutrient concentration is not on this label

Advanced EC measurement

What this tells you

Your plants