Are you talking about Aegopodium podagraria. Sedum, Invasive. What you have listed are only aggressive spreaders or self-seeders and not true invasive species. Among the hundreds of plants I have …I have all the plants you suggested were invasive,except for the sedum.I live in zone 8B ,in Portland ,Oregon. With the exception of the Phalarais, NONE of the plants you list are considered ‘invasive’ in Oregon. An invasive is rarely one that escapes the garden by above or below ground stems or roots. Prefers well drained soil. I wish I had all these beautiful plants these people are killing off. I’ve been killing a patch of mint all summer that I started 7 years ago. No garden or landscape is complete without the presence of the hardy, easy-to-grow, and succulent sedum plants. True invasives by definition are non-native species that have the ability to take over natural areas and out-compete native plants. Some forms that are available have burgundy, bronze or dark red leaves, changing with the seasons. Do Marigolds Stop Cabbage Worms – Is this Good Companion Planting? I have never seen it outside a garden. Along Colorado’s front range, yarrow can take over in short order and myrtle spurge (Euphorbia myrsinites) is listed as “Noxious” by many counties. Houttuynia cordata chameleon Is a nightmare. Florida betony is spreading rapidly for me even though I pull it up by hand and spray with roundup (maybe not strong enough a dose–I use 6oz to a gallon of water). Cover some ground with the bright yellow leaves of Sedum â Angelinaâ (Sedum rupestre â Angelinaâ ). Sedum spurium has a slow to medium growth rate. Nothing made it in my shady garden except the Bamboo I planted 30 years ago and it’s a small clump near the neighbor’s yard and hasn’t even spread into his yard. If you’re looking for a graceful succulent with a spunky attitude, you’ll see it in sedum. The only thing invasive I have had a problem with is English Ivy. Roundup is available in many formulations and dilutions. You can use this to encircle the stems of the Houttuynia and then spray with RoundUp without harming nearby plants. Foliage has an … Stringy stonecrop in gardens can be extremely invasive and can easily out-compete timid plants, including some of your favorite perennials. As one of the commenters below points out, invasiveness is regional. I will admit ivy is a problem but they don’t sell it in our stores here anymore. Plant Communication – Can Plants Talk to Other Plants? Here it does spread a bit, but I’d hardly call it invasive. Invasive perennials become “weeds” in a garden when the environment is in the plant’s comfort zone. I’m in England too (Kent) and I’m having massive problems with ground elder. In both cases you can get into a lot of trouble by taking the plant home. There’s a reason why this plant is also known as spreading stringy stonecrop. Every year, rhizomes make their way under the edging and wind up in the lawn, where I yank them out. These other plants you mention,can be bought cheaply at local garden stores. The stems of tall sedum are clothed in fleshy succulent leaves … By: Mary H. Dyer, Credentialed Garden Writer. It is quite common to have plants that need to be corralled by gardeners. It’ll be interesting to see which wins. 18 Succulent Sedum Plant Varieties With Brilliant Pictures. Resources ... Sedum spurium 'Dragon's Blood' Dragon's Blood Stonecrop. I use a kids beech pail, and a paint brush – I can apply roundup very strategically. Is Easy To Grow Sedum Considered Invasive? A related species, campanula rapunculoides, is considered very evil in Manitoba. I have worked hard at ridding it, but it is still showing up in my iris even though I pull every piece I see. Use as a groundcover or in the rock garden. Stingy stonecrop is suitable for growing in USDA plant hardiness zones 4 through 9. Clusters of bright yellow, star-shaped flowers create a smashing floral display in summer. Secondly, the root system is near impossible to remove. 3) Chameleon Plant (Houttuynia cordata) Photo: Sunchild57 Photography. But vinca doesn’t do very well out here; it will sometimes make a passable shade ground cover, but I don’t see it get out of control and municipalities don’t list it as a problem. Click the map above to view a larger image. Fertilize your sedum groundcover once or twice during the growing season using a low-nitrogen fertilizer, if needed. I learned that the hard way 🙂. ferns are happy here.. .thank God. I currently grow 6 different types and all are well behaved. None of these plants are invasive in zone 8B, Portland Oregon .I’ve tried all of them. (Invasive) David’s Lavender Garden Phlox (Phlox paniculata ‘David’s Lavender’) N. Bakker R. Mueller. Name: Sedum sieboldii Growing Conditions: Full sun and well-drained soil Size: to 4 inches tall Zones: 6-9 Native to North America: No Why We Love It: For its evergreen foliage that turns pink in winter. While Campanula puncata is a definite thug that I would never plant, people should be aware that there are lots of beautiful Campanula species that are definitely garden worthy. Follow instructions on the label. However, it is not officially considered invasive at this time. However, there is a growing body of people who regard rhododendron as an invasive plant. I have many of the plants that you mention, and I do agree with vinca. Law is currently being considered to inhibit the spread of these attractive plants into the countryside. Those water-hoarding leaves help make Sedum spurium drought-tolerant. Deservedly popular, Sedum reflexum (Blue Spruce Stonecrop) is a low growing, mat-forming, evergreen perennial adorned with blue-green needle-like leaves, arranged around the lax stems like spruce needles. Florida Friendly Gold Sedum finds its niche nearly everywhere – creeping over boulders, spilling down slopes or cascading from coral-colored pots.It’s needle-like but soft. I have some varigated periwinkle in a large container and that is still alive. Its hardy, invasive nature can cause it to grow in dense mats in low-fertility soil, which makes it difficult to control. I totally agree with you. Rocky Mountain gardens where plants are not as vigorous grow slower and shorter so we get away with growing some of the invasive perennials that are notoriously difficult to … I think whether something is “invasive” or not is dependent on local conditions. In most cases, the flowers are pink or white. 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