Most rooms fail for the same reason: a plant bought for the pot, not the light.

Walk to the window. If you can read there at noon without a lamp, that's a bright plant. If you can't, that's a low-light plant. Don't fight it.

Three that survive real homes:

• Snake plant — corners, forgetful watering

• Pothos — shelves, trailing, hard to kill

• ZZ plant — dim rooms, almost no water

If you want the full 50-plant layouts room by room, that's Green Canvas.