Hi Echo,

I think you wrote very well. I am not sure if you are interested in capitalization but in English we capitalize titles, proper nouns (a person's name, names of places, and I are all proper nouns) and the first letter of the word that begins a sentence. We also have a space after a period at the end of a sentence.

I think you meant to say "have a nice day" for your last sentence.

I hope this helps you. Thank you for your sharing this with us! 

The Seed Germination

I bought some flowers and vegetables seeds on 2015.4.24._Then I planted them in the flower pot the day before yesterday. This morning some seeds have sprouted._I'm so happy that I wanted to share this with you. Nice day.

The Seed Germination

I bought some flowers and vegetables seeds on 2015.4.24. then I planted them in the flower pot the day before yesterday. This morning some seeds have sprouted.I'm so happy that I wanted to share this with you. Nice day.