▁plant ▁is ▁also ▁found ▁widely ▁distributed ▁along ▁pet role um ▁se ep ▁sites . ▁These ▁flowers ▁fl our ish ▁in ▁areas ▁that ▁provide ▁abund ant ▁spring time ▁mo ist ure ▁followed ▁by ▁dry ▁conditions ▁in ▁the ▁summer . ▁ ▁D . ▁po etic um ▁pre fers ▁to ▁grow ▁in ▁a ▁region ▁where ▁the ▁soil ▁is ▁composed ▁of ▁rich ▁hum us ▁and ▁fine ▁sand ▁that ▁has ▁been ▁depos ited ▁by ▁the ▁wind s ▁through ▁the ▁Columbia ▁River ▁G orge . ▁ ▁They ▁are ▁typically ▁found ▁at ▁an ▁alt itude ▁of ▁ 0 ▁to ▁ 1 , 6 7 7 ▁meters . ▁ ▁Pro pag ation ▁D . ▁po etic um ▁blo oms ▁in ▁a ▁per enn ial ▁manner . ▁Mean ing , ▁as ▁opposed ▁to ▁annual ▁flowers ▁which ▁complete ▁their ▁lif ecycle ▁in ▁just ▁one ▁growing ▁season , ▁per enn ial ▁flowers ▁grow ▁for ▁three ▁or ▁more ▁years ▁at ▁a ▁time . ▁ ▁D . ▁po etic um ▁first ▁emer ges ▁in ▁the ▁spring time ▁as ▁a ▁small , ▁un ass uming ▁bas al ▁cl ump ▁of ▁o val , ▁soft ▁green ▁leaves . ▁After ▁this ▁growth ▁a ▁sl ender ▁flower ▁st alk ▁r ises ▁from ▁a ▁few ▁inches ▁to ▁over ▁a ▁foot ▁above ▁the ▁fol i age . ▁This ▁flower ▁generally ▁bo oms ▁from ▁March ▁to ▁April , ▁however ▁in ▁the ▁region ▁of ▁the ▁Columbia ▁River ▁G orge ▁the ▁season ▁can ▁vary ▁by ▁as ▁much ▁as ▁a ▁month ▁or ▁more . ▁ ▁P ests ▁and ▁dise ases ▁D . ▁po etic um ▁is