RHYMING RIDDLE

The eldest son, dressed in white,
Bearing down, with the sharpest bite;
His tears will hurt you
In their cruel embrace,
He destroys his siblings' work,
And leaves nothing in its place.

The eldest daughter, in varied colors,
Her voice much softer than her brother's;
Her tears fall warm
As she cries to her garden,
Giving art and beauty
To what her brother has hardened.

The youngest son in green and blue,
His voice as soft as a kitten's mew;
Bathed in warmth, he laughs and grins,
And tries to undo his brother's sins.

The youngest daughter, colored deeply,
Has a bite, but still speaks sweetly;
Her tears fall - birds cease their twitter,
Her sister's work she turns to litter.

Answer:

Winter, Spring, Summer, and Fall