How aggressive is Golden Creeping Jenny?
a2zmom_Z6_NJ
12 years ago
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echinaceamaniac
12 years agoken_adrian Adrian MI cold Z5
12 years agoRelated Discussions
creeping jenny (lysimachia) post-defoliation recovery
Comments (4)Thanks to everyone for their comments, the encouragement, and for the compliment! :-) Yeah I've had creeping jenny for several years, and I know how fast it grows. I just wasn't sure if it had been killed past the point of it recovering, without me having to re-establish it with plugs. Would prefer not to have to do that. Y'know, at what point does a plant become so defoliated that it cannot recover --- I know it varies for each plant, and creeping jenny being so robust is probably pretty tough. I was just hoping that a) it would come back, and b) it would come back fast, without me having to wait the whole season. I'd be happy to send sawflies your way... :-) All I do to control my creeping jenny is to hand-pull it from around the bases of the plants in spring, and then when I mow along where the grass meets the bed, it gets a lot of it. If it starts going into the grass too far I just spray a little Round Up between the bed and the lawn, and that will keep it contained all season. I don't mind doing that too much because when it's established it chokes out the weeds pretty well, and I don't have to mulch the bed every year. We have had a lot of rain in the last day or two, and it seems to be responding to that. I'm seeing new growths at the ends, but not as much along the stems yet. But at least now there is new growth, which means they aren't going to just keel over. For all its aggressiveness, creeping jenny does make a nice background in a bed. My neighbors all ooh and ahh over how great the bed looks. Haven't heard much of that lately, so I'm guessing it's because the creeping jenny isn't looking so great. Thanks again!...See MoreLysimachia nummularia âAureaâ Creeping Jenny and small conife
Comments (5)from my experience.. a real PIA .. but i never thought it would smother anything ... sharpen a straight shovel ... and just slice in around any given plant.. say 12 inches out .... nice round circle ... and sift out the jenny .... i suggest that far.. so you wont have to do it again this summer ... the stuff isnt deeply rooted.. and once you cut it.. it should all pull out.. then start thinking about using round up on the rest.. lol.. i can tell you how to do that.. in your beds.. if and when the time comes ... and to think.. an EX-friend gave it to me.. ken...See More'Golden' Jenny vs. 'Creeping' Jenny
Comments (5)I have some of the golden jenny. Lysimachia mummularia "Aurea" indeed. I keep mine WELL AWAY from my lawn. Here's some info I found: Hardiness Zones: 3 to 8 Height: 6 in Spread: 12 in Type: herbaceous perennial Flowers: Yellow Comments: Creeping Jenny (Vis. 1) can be used as a ground cover and will tolerate shade. As an alternative, the plant may be grown in a hanging pot. The plant also produces yellow flowers (Vis. 2). Use it with caution as Creeping Jenny can become a lawn weed. The plant prefers a moist soil and can be used near water. Propagation: Propagation is by division in autumn or spring and may be needed to keep the plant under control. Cuttings may also be used. Cultivars: 'Aurea' - The leaves are bright yellow. Here is a link that might be useful: Reference...See MoreAggressive Natives
Comments (25)Bob64, I think your strategy has to depend on how large a battle you are fighting. If you have yard, or even an acre or two, and you have the time then you might eradicate the invasive weeds and simply monitor the area to make sure they don't become established again. In that case you can plant anything you like and make sure it survives by taking good care of it. On the other hand, if you have acres or simply a little more land than you can really carefully monitor all the time, then you have a different problem - how to eradicate the invasive weeds and replace them with something to keep them at bay even if you can't be vigilant all the time. The more your situation resembles the latter case, the more you should look at the really aggressive native plants. If I have a small area of woodland to maintain, I might rely on violets, mayapple, or other relatively small plants that can be somewhat aggressive in the garden, plus my careful attention to the area. However, if I have a couple of acres where I'd eradicated russian olive, Canada Thistle, or Japanese knotweed and wanted to be sure they wouldn't return, I'd put in the most aggressive native plants I could find. I would much rather have a large stand of Canada Goldenrod than Canada Thistle (the thistle isn't really from Canada - it is european/asian). Even the most aggressive natives are going to take some time to become established to the point they will be much help at keeping out non-native plants, but they are a lot better than more delicate native plants would be. If you visit natural areas you find that the vegetation is largely made up of large stands of 'aggressive' natives (I'd call them 'vigorous' or 'dominant', not 'aggressive') especially where there has been some disturbance in the past. The less dominant plants fill in between the more dominant plants, or gradual succession creates niches for less dominant plants to grow, so on a large enough scale you find plant diversity even with the dominant natives. In fact, i think in many cases the dominant native plants help support the less dominant ones (think about a prairie - what is more aggressive than prairie grasses? yet there are lots of wildflowers, too. Same goes for a woodland - dominated by trees by full of other plants) I am not claiming that there has never been a situation where a native plant was so invasive that it caused ecological damage, but I think the cases are rare, and mostly a result of our perception of things. Around here (PA) eastern Hemlock would inevitably take over most of the forest if there was no disturbance. It might take 1000 years, but it would happen. Does anybody claim that hemlock is invasive? The hemlocks, like the goldenrod, blackberries, black locust, and oaks before them are part of natural succession. I think most of the native plants we perceive as invasive are merely filling in their niche at their allotted time in the development of the ecosystem. I am not recommending them all as garden plants, nor denying that they can take over pretty thoroughly, but just pointing out that they too, in turn, will be replaced, and in the mean time they play an important role in the ecosystem. Non-native plants are another story, sicne they may not easily be replaced by succession, they are far more likely to COMPLETELY take over, and they generally play only a limited role in supporting wildlife or otherwise being part of the ecosystem....See Morekimcoco
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