English Ivy: A “Dirty Dozen” Plant
Have you ever looked along a highway and observed all the trees covered in vegetation from trunk to branches? It was most likely English ivy (Hedera helix), the final of […]
Have you ever looked along a highway and observed all the trees covered in vegetation from trunk to branches? It was most likely English ivy (Hedera helix), the final of […]
Our Dirty Dozen plant of the week is Japanese honeysuckle (Lonicera japonica). This ornamental vine is still widely available in the horticultural trade, even though it has invaded all of the […]
For this week’s Dirty Dozen plant, we have a triple threat: autumn olive (Elaeagnus umbellata), Russian olive (Elaeagnus angustifolia) and thorny olive (Elaeagnus pungens). All three Elaeagnus species are invasive, […]
Our “Dirty Dozen” plant of the week is Italian arum (Arum italicum). Even though Washington is the only U.S. state to officially recognize arum as invasive, our horticulture staff have […]
Invasive Plants: How did They Get Here? If you’ve been reading our “Dirty Dozen” blog series, you’ve probably noticed a recurring theme in several of the articles: many invasive plants […]
This week we are featuring tree-of-heaven (Ailanthus altissima) as our “Dirty Dozen” plant. While this tree may have been used in folk medicine or even as an insecticide, it is […]
This week’s Dirty Dozen plant is oriental bittersweet (Celastrus orbiculatus). Since it is still available in the horticultural trade, we hope that the following information will convince you not to […]
This week’s featured member of the “Dirty Dozen” is Ampelopsis glandulosa var. brevipedunculata, commonly known as porcelain berry or amur peppervine. Most horticulture staff agree that this is the most […]
This week’s featured member of the “Dirty Dozen” is Chinese privet (Ligustrum sinense). Though several southern states, including Virginia, have recognized this plant in their invasive species lists or laws, […]
This week’s “Dirty Dozen” plant is mulberry weed (Fatoua villosa). In recent years, we have observed this plant creeping into our garden beds at Lewis Ginter Botanical Garden. So far, […]