( ( ( ( Plant ( a seed ) ) and ) ( help ( it grow ) ) ) . )
(ROOT (S (VP (VP (VB Plant) (NP (DT a) (NN seed))) (CC and) (VP (VB help) (S (NP (PRP it)) (VP (VB grow))))) (. .)))
Plant a seed and help it grow.
(ROOT (S (NP (JJ Heirloom) (NNS seeds)) (VP (VBP come) (PP (IN from) (NP (NP (NNS plants)) (SBAR (WHNP (WDT that)) (S (VP (VBD were) (ADVP (RB traditionally)) (VP (VBN grown) (PP (IN in) (NP (JJ human) (NNS populations))))))))) (, ,) (ADJP (RB as) (VBN opposed) (PP (TO to) (NP (NP (DT the) (NNS seeds)) (VP (VBN used) (PP (IN for) (NP (JJ large-scale) (JJ agricultural) (NN production)))))))) (. .)))