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“Spring Up Like Mushrooms”: Sudden Growth and Surprise

Learn expressions for rapid growth and unexpected news, with attention to tone and timing.

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Words and Their Stories · 5:57

Audio lesson

Source: VOA Learning English · Words and Their Stories

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This episode connects “spring up like mushrooms” with things appearing quickly and in many places. It also explains “spring something on someone” for giving unexpected news and “out of the blue” for an event that arrives without warning. The expressions can describe growth or surprise, while good communication means considering whether someone needs notice.

Cultural note: Springing important news on someone can create stress, especially when the news affects shared plans or responsibilities. Give people notice where possible. The story’s 2020 cupcake example is historical and is not presented as a current business trend.

Keep exploringNew shops can seem to appear overnight, while unexpected news can arrive out of the blue. These expressions help describe both.

Phrase guide · 4 expressions

Explore the expressions

Original explanations and examples, created for learners. Save a card for later or hear the phrase spoken by your browser.

Sudden growth

Describe things appearing quickly in many places.

spring up like mushrooms

Meaning

Appear or grow quickly and in many places.

Tone & use

A vivid comparison for rapid growth. It is figurative, not a precise count or speed.

Example

“Small repair cafés sprang up like mushrooms after the library offered free meeting space.”

NeutralInformal / idiomatic

set up shop

Meaning

Start a business or begin operating from a particular place.

Tone & use

Can be literal or figurative; the source uses it for a business establishing itself in a town.

Example

“A bicycle-repair cooperative set up shop beside the community center.”

NeutralInformal / idiomatic

Unexpected news

Talk about information that arrives without warning.

spring something on someone

Meaning

Tell someone something unexpected, often without giving them time to prepare.

Tone & use

Can sound critical when the news is important. Use “give someone notice” when discussing a more considerate approach.

Example

“Please do not spring a schedule change on the volunteers at the last minute.”

NegativeInformal / phrasal verb

out of the blue

Meaning

Unexpectedly and without an obvious warning.

Tone & use

Often describes news, a visit, or a message. It does not tell you whether the event is welcome.

Example

“An old neighbor called me out of the blue to share a family recipe.”

NeutralInformal / idiomatic

Knowledge check

Try it

Choose the expression that best fits each situation.

Try it · Choose the best expression

1 of 3

Several small businesses appear in a neighborhood over a short time. What can you say?