How do you say

A heavy snow fell on Beijing about a month ago.

..in Chinese?

大约一个月前,北京下了场大雪。

dà yuē yí gè yuè qián , běi jīng xià le chǎng dà xuě 。

How do you say "For the past month, I have been breeding flowers, and I find it very rewarding to watch them grow." in Chinese?