Sefton Council said the recollections would form part of an audio trail for the gardens and would be played in a new visitor centre.
The historic seafront King's Gardens were awarded more than £4m from the Heritage Lottery Fund (HLF) and the Big Lottery Fund (BIG) through their Parks for People programme.
"It is one of the largest current park restoration projects in the UK and is entirely externally funded," councillor Ian Moncur said of the largest single HLF grant in the north west to parks.
Sefton, which is providing the match funding from section-106 cash, is restoring historic features to ensure a long term future for the gardens and improving security and accessibility.
"We want to hear memories of these historical gardens, absolutely anything from early holidays, playing crazy golf, watching firework displays or just a family picnic.
"These will then be included as part of the whole transformation of the park, which is really starting to look fabulous."