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Hi, i planted many many allium purple sensation in quite a big border, but they were very late going in due to rains.  I now find the western bit of the border, all the leaf tips are unpleasantly pale.  Other side is OK .  Internet searches suggesting lack of nitrogen.  Whats the best thing to do, try a high nitrogen feed?  Suggestions? 


The leaves on these generally have done their job by the time the flowers start. In the next few days'weeks they will die off completely.



plant them behind something to hide the leaves.

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