What have the poems "Birches," "After Apple Picking," and "The Tuft of Flowers" by Robert Frost have in common?

Robert Frost and his family moved to England in 1912
because he felt that his poetic talent was not being recognized in America. His first
collection of poems "A Boy's Will" was published  in 1913 in England, it was quickly
followed by "North of Boston" in 1914. In 1915 he returned to America after the American
public and critics had taken notice of his poetic
genius.

All the three poems - "After Apple Picking,"
"Birches" and "Tuft of Flowers" belong to this early period. The most important factor
which is common to these three poems is a sense of nostalgia. Frost feels keenly the
loss of the American countryside. In "The Tuft of Flowers" the
lines

And
dreaming, as it were, held brotherly speech
With one whose thought I had not
hoped to reach.

foreground
his separation from the American, more specifically the New England
countryside.

Secondly, the three poems are characterized by
uncertainty about the poet's future. This uncertainty is foregrounded in the following
lines from "Apple Picking":

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And there’s a barrel that I didn’t
fill
Beside it, and there may be two or three
Apples I didn’t pick
upon some bough

which express
Frost's regret in not exploiting his poetic potential to the maximum because he is not
certain about the public reception of his poems.

Thirdly,
all three poems follow different rhythmic patterns and rhyme schemes, clearly indicating
that Frost was experimenting and innovating and trying to find his feet in the world of
poetry.