5 Bad Weeds - Gardens Don't Need

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Invasive Plant:1

English Ivy (Hedera helix)

Very distinct, dark green- waxy leaves

Typically, three-lobed with a heart-shaped base, but the leaf shape can be variable

The vine grows as a groundcover and then climbs as it matures

The foliage blocks sunlight and restricts the growth of other plants

Heavy vines cause damage and death to mature trees by loosening the bark and holding moisture against the trunk, causing decay

English ivy also promotes bacterial leaf scorch, a disease effecting maples, oaks, and elms.

Invasive Plant: 2

Japanese honeysuckle (Lonicera japonica)

Evergreen vine with yellow and white flowers

Grows in sun & shade

Young leaves can be lobed like an oak leaf

Strangles small plants, saplings, shrubs and trees

Not to be mistaken for the native Coral Honeysuckle (Lonicera sempervirens) below:

 

Invasive Plant: 3

Amur “bush” honeysuckle (Lonicera maackii)

Fast growing, deciduous shrub that grows up to 20’

Grows in sun & shade

Flowers are white

Spreads quickly and takes over the understory/mid-story

Invasive Plant: 4

Mugwort (Artemisia vulgaris)

Herbaceous plant

Mugwort spreads by extensive rhizomes (roots)

Found commonly in landscapes in part sun to full sun

Each root piece will generate a new plant

Quickly spreads and takes over ground cover and herbaceous layer

Invasive Plant: 5

Tree-of-heaven (ailanthus)

Tree grows up to 50 feet tall with separate male and female (dioecious)

Found commonly in landscapes in full sun and part sun

Creates clones of itself and becomes the dominate tree

Produces more than 300,000 seeds annually

Host of invasive Spotted Lanternfly