Grow Light CheckPlant grow-light guide
How much grow light does Fiddle-leaf fig need?
Fiddle-leaf figs generally need brighter indoor conditions than tolerant understory foliage plants. A grow light can supplement a window when the whole canopy receives useful light. A practical starting target is 100–300 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
Fiddle-leaf fig light targets at a glance
| Plant | Ficus lyrata |
|---|---|
| Starting PPFD | 100–300 µmol/m²/s at the leaves |
| Photoperiod | 10–14 hours with a consistent dark period |
| Starting setup | Favor broad coverage over one intense hotspot and rotate only if the canopy is otherwise unevenly lit. |
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
Slow or one-sided growth, long gaps between leaves, or lower-leaf loss after other causes are excluded.
Possible over-lighting
Bleached or scorched upper leaves and excessive heat at the canopy.
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 NC State 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.