I am almost certain it was the great and wondeful Spike Milligan...
Anonymous
It basically means that spring has begun
You can find the full poem "Verse and Worse-Spring has sprung grass has ris" by Arnold Silcock in libraries, poetry collections, or online databases that archive his works. It is a humorous and playful poem that celebrates the arrival of spring with its delightful wordplay.
You did Salvester the cat
A catchy phrase for 'Spring' can be found in poetry or music dedicated to celebrating or describing it. As the titles of numerous poems and songs explicitly include 'Spring' or Spring-related terms, a review of an anthology of literature or music, as well as an internet search, can reveal many possibilities. "Spring is sprung, The grass is ris, I wonder where The birdies is."
Friedrich Ris died in 1931.
Friedrich Ris was born in 1867.
The population of Ris-Orangis is 26,863.
Walter Ris died in 1989.
Walter Ris was born in 1924.
The area of Ris-Orangis is 8,710,000.0 square meters.
Azat-le-Ris's population is 290.
You will have to spell out "casv ris".