Invasive & Non-Native Plants in Pennsylvania
These non-native plants are among the most commonly recorded spreading in Pennsylvania. Many crowd out the plants local wildlife depends on. The good news: there's a native you can plant instead.
Garlic mustard
9,654 sightingsAlliaria petiolata · non-native to the U.S.
Plant instead: a Pennsylvania native that fits the same spot.
Multiflora rose
6,777 sightingsRosa multiflora · non-native to the U.S.
Plant instead: Carolina rose, Swamp rose, Climbing rose (native Rosa)
Dames rocket
6,671 sightingsHesperis matronalis · non-native to the U.S.
Plant instead: a Pennsylvania native that fits the same spot.
Ground ivy
6,532 sightingsGlechoma hederacea · non-native to the U.S.
Plant instead: a Pennsylvania native that fits the same spot.
Common wormwood
5,474 sightingsArtemisia vulgaris · non-native to the U.S.
Plant instead: Field sagewort, White sagebrush, Biennial wormwood (native Artemisia)
Amur honeysuckle
5,105 sightingsLonicera maackii · non-native to the U.S.
Plant instead: Swamp fly honeysuckle, Limber honeysuckle, American fly honeysuckle (native Lonicera)
Purple deadnettle
5,049 sightingsLamium purpureum · non-native to the U.S.
Plant instead: a Pennsylvania native that fits the same spot.
Wine raspberry
4,557 sightingsRubus phoenicolasius · non-native to the U.S.
Plant instead: Steele's dewberry, Arching dewberry, Black raspberry (native Rubus)
Japanese barberry
4,546 sightingsBerberis thunbergii · non-native to the U.S.
Plant instead: American barberry, Barberry (native Berberis)
Queen Anne's lace
4,286 sightingsDaucus carota · non-native to the U.S.
Plant instead: a Pennsylvania native that fits the same spot.
Common mullein
4,066 sightingsVerbascum thapsus · non-native to the U.S.
Plant instead: a Pennsylvania native that fits the same spot.
Chicory
3,738 sightingsCichorium intybus · non-native to the U.S.
Plant instead: a Pennsylvania native that fits the same spot.
White clover
3,701 sightingsTrifolium repens · non-native to the U.S.
Plant instead: Kates Mountain clover, Buffalo clover, Carolina clover (native Trifolium)
Canada thistle
3,654 sightingsCirsium arvense · non-native to the U.S.
Plant instead: Field thistle, Swamp thistle, Pasture thistle (native Cirsium)
Red clover
3,567 sightingsTrifolium pratense · non-native to the U.S.
Plant instead: Kates Mountain clover, Buffalo clover, Carolina clover (native Trifolium)