How Many Lumens Do You Need for Garden Lighting?
As a working guide: path and steps 60–150 lumens, border and shrub uplights 100–250, wall washing 200–400, mature tree uplights 300–700. Beyond that you are floodlighting. Restraint is what makes a garden look expensive after dark.
| Task | Lumens per fitting | Typical beam |
|---|---|---|
| Step and threshold lighting | 60–120 | Wide, shielded, downward |
| Path marking | 80–150 | Wide, downward |
| Shrubs and small features | 100–250 | 24–36° |
| Wall and fence washing | 200–400 | 40–60° |
| Small to medium trees | 200–450 | 24–36° |
| Mature specimen trees | 400–700 | 10–24° narrow spot |
Beam angle does more than lumens
Two fittings of identical output look completely different depending on beam angle. A 400 lumen narrow spot will drive light 8 metres up into a canopy; the same 400 lumens at 60 degrees will barely light a shrub. When a scheme feels weak, the fix is nearly always a tighter beam on the feature, not a brighter lamp.
Contrast is the whole game
The eye reads brightness relatively. In a dark garden, 100 lumens is plenty to draw attention. The moment everything is lit to the same level, nothing stands out and the garden looks flat and over-exposed — the classic sign of a scheme specified by output rather than design. Leave real darkness between the lit points.
Dimming is the safety net
- Specify slightly more output than you think you need on features only, and dim them back on site.
- Never over-specify path and step fittings — they are viewed directly and glare is instant.
- Run zones at different levels; a scheme where everything is at 100% is almost always too bright.
- Aim and set levels after dark, from the house, not from the middle of the lawn.
A quick sanity check
A single household candle is roughly 12 lumens. A typical indoor room feels comfortable at a few hundred lumens per lamp. Gardens are compared against genuine darkness, not daylight — which is why 100 lumens outdoors does far more work than the number suggests.
Get output and beam angle specified properly
A design visit includes a fitting schedule with lumens and beam angles for each position, plus a fixed itemised quote and no obligation.
Book a Design Visit
Hastings Garden Lighting Co.
