Time to buy Dollar Tree?

Dollar Tree is an American chain of discount variety stores, selling merchandise for $1 or less. 
It was founded in 1986 and is headquartered in Chesapeake, Virginia. 
Dollar Tree operates over 15,000 stores in 48 U.S. states and 5 Canadian provinces. It sells a wide range of products including household items, food and snacks, health and beauty aids, toys, gifts, party supplies, books, and seasonal items. 
In a recession discount stores can tend to do well as consumers leave more expensive retailers and come searching for bargains at cheaper stores. While the debate continues about if/when the US will head into a recession will stock like Dollar Tree find dip buyers? 
Historically the stock tends to gain over this period of time with a 80% win percentage between February 09 and March 29 over the last 15 years. So, does this mean that Dollar Tree will gain again this year? 
Major Trade Risks: 
The major trade risk here is that the seasonal pattern does not repeat itself again this year.  

Remember, don’t just trade it, but Seasonax it!