Finish the following sentence with the best choice: Help straggly petunias to grow new lush flowers.

Choices:
- Petunias will get long and straggly and stop producing flowers unless you cut the roots back about one third, about once a month. This will generate lush new growth all summer long.
- Petunias will get long and straggly and stop producing flowers unless you cut the foliage back about one third, about once a month. This will generate lush new flowers all summer long.

Answer:
Petunias will get long and straggly and stop producing flowers unless you cut the foliage back about one third, about once a month. This will generate lush new flowers all summer long.