# Fill to the left of the y-axis only [duplicate]

I have the following code that produces a plot of a Normal distribution:

Plot[Table[PDF[NormalDistribution[μ, 3], x], {μ, {4}}] // Evaluate, {x, -15, 15},
Filling -> None, Axes -> {True, True}, Ticks -> None,
PlotStyle -> {RGBColor[0.368417, 0.506779, 0.709798],
RGBColor[0.880722, 0.611041, 0.142051]}]


How do I fill to the left of the y-axis only?

 f[x_] := PDF[NormalDistribution[4, 3], x]

Show[Plot[f[x], {x, -15, 15}, Ticks -> None,
PlotStyle -> {RGBColor[0.880722, 0.611041, 0.142051]}],
Plot[f[x], {x, -15, 0},
PlotStyle -> {RGBColor[0.880722, 0.611041, 0.142051]},
PlotRange -> All, Filling -> Axis]] ConditionalExpression combined with the option Filling:

Plot[{PDF[NormalDistribution[4, 3], x], ConditionalExpression[0, x <= 0]}, {x, -15, 15},
Ticks -> None,
PlotStyle -> {RGBColor[0.880722, 0.611041, 0.142051], None},
Filling -> {1 -> {2}}] Plot[Evaluate @ Append[Table[PDF[NormalDistribution[μ, 3], x], {μ, {3, 4, 5}}],
ConditionalExpression[0, x <= 0]] , {x, -15, 15},
Filling -> {1 -> {4}, 2 -> {4}, 3 -> {4}},
Ticks -> None,
PlotStyle -> Append[ColorData /@ {1, 2, 3}, None],
PlotLegends -> ("μ = " <> # & /@ {"3", "4", "5"})] 