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Is there ever a time when it would be appropriate to introduce non-native plants onto park lands?
Yes! (DEP Op. Manual, Chapter 4.2, section e, subsection 1b)
• If a historic site is being restored, a non-native exotic plant may be allowed to be planted and kept up as long as it is to “restore the site to its approximate condition” for the period.
• Non-natives can also be planted when they are a part of a formal state garden, but it depends on the plants position within its garden, and may be subject for removal.
• For certain park residences, non-native plants may also be planted and maintained, given they are allowed by the park biologists and remain in the residence’s immediate area, though they are still subject for removal is necessary.
• For certain kinds of roadsides, particularly where the sides are unstable, some exotic grasses may be permitted to maintain the integrity of the road.