because otherwise it's too it gets if you start them when it's cooler in the spring then it gets too hot in the summer
( because ( otherwise ( it ( 's ( too ( it ( gets ( if ( you ( ( start them ) ( when ( it ( ( ( 's ( cooler ( in ( the spring ) ) ) ) then ) ( it ( gets ( too ( hot ( in ( the summer ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) )
(ROOT (SBAR (IN because) (S (ADVP (RB otherwise)) (NP (PRP it)) (VP (VBZ 's) (ADJP (RB too) (SBAR (S (NP (PRP it)) (VP (VBZ gets) (SBAR (IN if) (S (NP (PRP you)) (VP (VBP start) (NP (PRP them)) (SBAR (WHADVP (WRB when)) (S (NP (PRP it)) (VP (VBZ 's) (NP (NP (JJR cooler)) (PP (IN in) (NP (DT the) (NN spring)))) (ADVP (RB then)) (SBAR (S (NP (PRP it)) (VP (VBZ gets) (ADJP (RB too) (JJ hot) (PP (IN in) (NP (DT the) (NN summer)))))))))))))))))))))
You should start them around June in order for them to not get too hot.
( You ( ( should ( ( ( start them ) ( around ( June ( in order ) ) ) ) ( for ( them ( ( to not ) ( get ( too hot ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP You)) (VP (MD should) (VP (VB start) (NP (PRP them)) (PP (IN around) (NP (NP (NNP June)) (PP (IN in) (NP (NN order))))) (SBAR (IN for) (S (NP (PRP them)) (VP (TO to) (RB not) (VP (VB get) (ADJP (RB too) (JJ hot)))))))) (. .)))