今天給園子上了肥料，查了霜期

今天給園子上了肥料，是PREEN牌子的。說明書上說要在3個月後再上一次。也就是7月30號的時候。
還把蒲公英拔了一遍。

買了些花籽，有NASTURSIUM，PETUNIA，和MARIGOLD。準備趁春天種上花。明天準備買幾顆CATAWBA RODODENDRON種在門前。

這裏的最後一場春霜是在4/26，秋霜在10/9. (http://davesgarden.com/guides/freeze-frost-dates/).在室外種花籽要在最後一場霜後種才可以。

Each winter, on average, your risk of frost is from October 9 through April 26.

Almost certainly, however, you will receive frost from October 22 through April 11.

You are almost guaranteed that you will not get frost from May 10 through September 26.

Your frost-free growing season is around 166 days.