( ( Plant ( in ( ( ( the fall ) , ) ( as ( they ( will ( need ( to ( ( stay ( dormant ( during ( the ( cold winter ) ) ) ) ) ( before they ) ) ) ) ) ) ) ) ) ) ( ( grow ( in ( the spring ) ) ) . ) )
(ROOT (S (NP (NP (NNP Plant)) (PP (IN in) (NP (NP (DT the) (NN fall)) (, ,) (SBAR (IN as) (S (NP (PRP they)) (VP (MD will) (VP (VB need) (S (VP (TO to) (VP (VB stay) (ADJP (JJ dormant) (PP (IN during) (NP (DT the) (JJ cold) (NN winter)))) (PP (IN before) (NP (PRP they))))))))))))) (VP (VBP grow) (PP (IN in) (NP (DT the) (NN spring)))) (. .)))
Plant in the fall, as they will need to stay dormant during the cold winter before they grow in the spring.
(ROOT (S (NP (JJ Many) (NNS plants)) (VP (NN respond) (PP (TO to) (NP (NP (DT the) (NNS days)) (VP (VBG growing) (ADJP (JJR shorter)) (PP (IN in) (NP (DT the) (NN fall))) (PP (IN by) (S (VP (VBG going) (ADJP (JJ dormant))))))))) (. .)))
Many plants respond to the days growing shorter in the fall by going dormant.