Plant grow-light guide

How much grow light does Pothos need?

Pothos survives relatively low indoor light, but brighter filtered light supports denser growth and stronger variegation. A practical starting target is 50–200 µmol/m²/s at the leaves for 10–14 hours per day, followed by gradual adjustment based on the plant’s response.

Published and reviewed by Grow Light Check · Updated August 3, 2026

Pothos light targets at a glance

Plant	Epipremnum aureum
Starting PPFD	50–200 µmol/m²/s at the leaves
Photoperiod	10–14 hours with a consistent dark period
Starting setup	Begin with a modest white LED above the foliage and increase output gradually if new growth remains small or widely spaced.

Choose distance from output, not watts alone

A narrow bulb, a diffuse clamp lamp, and a long bar can all draw the same electrical power while delivering very different light at the leaves. Use published PPFD at a stated distance when available. Otherwise account for PPF or PPE, beam shape, coverage and distance.

Let the plant confirm the setup

Possible under-lighting

Long gaps between leaves, small new leaves, slow growth, or fading variegation.

Possible over-lighting

Pale or scorched areas, crisp edges, or warm leaves directly under the lamp.

Change intensity or distance gradually and evaluate healthy new growth over time. Water, roots, nutrition, temperature and pests can produce similar symptoms.

Source and limitations

The target is a broad household starting range, not a species maximum or a guarantee of flowering. Background plant-care guidance was reviewed against Clemson Cooperative Extension; the numeric range is Grow Light Check’s practical interpretation for broad-white electric lighting.

Use the result as a starting point

A listed wattage is electricity use, not plant-level brightness. Reflectors, lenses, fixture dimensions, spectrum, barriers, and the illuminated area all affect the result. Manufacturer PPFD maps or a reading from a cosine-corrected quantum meter are stronger evidence than wattage alone.