Just, please, cut it back as soon as the blooms begin to fade, so it doesn't go to seed. Enjoy, but enjoy responsibly. Thanks,

Martha

Hi Martha, I know it spreads by rhizome and I have it as part of a "medallion garden" surrounded completely by interlock so that keeps it in check. (I had never heard about any self seeding for this plant).

I have the variegated that has spread considerably. I have room for it in one bed, so I just let it go. The other I just ripped out some as it was getting alittle to close to the edge of bed lol.

A dear friend gave me the original so no, I won't dig mine up either ;0)

For mixed perennial beds, I find the best way to use yellow loosestrife is not use a lot and keep on top of what you have.

I've kept one clump planted in 2000. It always spreads vigorously as it races to the front of the bed (to the light).

Initially it was planted in a container, but it just came over the top.

Now I simply pull most of the clump out when it's bloomed.

Like Rouge, I've not seen yellow loosestrife seed in our location/zone.

As often with variegated perennials, the variegated form is not as vigorous as the regular form.

Another advantage of variegated perennials!

I rather like it too. Surprising, since I am not a "yellow person". Lol.

I started out with a variegated 'Golden Alexander', but it reverted terribly- now I only have green. I put it in a difficult area (under some trees, doesn't get frequent water) to keep it in check some.

-lilsprout, does yours burn at all? My GA used to burn around the edges a lot.
CMK

How difficult is it to dig up? i have a yellow and orange bed and I might put some of the varigated in next year.

For my beds (I work towards loose soil), easy to pull out.

Minimal use of spade/trowel.
Yellow loosestrife is shallow rooted.
Extremely unlike purple loosestrife, if you're digging that out.

Martha probably has confused Lysimachia with Lythrum.

Lysimachias typically are locally spreading annoyances in the garden, not seed-spreading environmentally waste-laying planet killers.

Yes, I do believe it is the purple loosestrife (Lythrum) that is the horribly invasive.

Here is a link that might be useful: Purple loosetrife

I'm always surprised by the controversy over the invasiveness of the yellow loosestrife [lysimachia] and the purple loosestrife [lythrum]. I've had them both for several years. The yellow is in two clumps and the main clump has spread only 2 ft or so, with no seeding. I actually like the spreading habit and it is one of my favorite flowers. The purple has never spread and doesn't seed fpr me. I divided it a few years back and it has never completely recovered. Again, it is one of my favorites as I like the color so much.

There is no controversy regarding classification of Lythrum as an invasive: It *is* classified as such in many states.

Here is a link that might be useful: USDA

I have a clump of lythrum in my garden that is so old I couldn't even guess when it was planted. I have certainly never had to worry about it spreading. This year I'm concerned that the rabbits will kill it. they have eaten half of it to the ground. They are also busy on a hollyhock, every time it makes a leaf they eat it. They come in at nite so I haven't had a shot at it yet.

I was going through some pictures I had taken earlier in the season and this combo caught my eye (taken June 29).

(I think the clematis is "Still Waters")

Rouge you've given me an idea :). This yellow loosestrife has crawled under the fence from my neighbour's garden. It's right on the edge of a gravel path between two stored blue water barrels. I've left it because I like the splash of colour, and it hides that bit of fence. I usually cut it back right after flowering but after seeing yours with the clematis... I have a C. durandii I have to move later on, the wheels are turning LOL.

Annette

Mmm, I have just returned from my trip to Scotland clutching a couple of liberated lysimachia ciliata (Fireworks?). I have had neither the space not the inclination for these slightly oafish plants....but having (a lot) of space (and no money) has trumped all previous (sensible) thoughts in favour of the easy, enthusiastic and tough commoners which are reasonably profligate with seeds without committing some environmental crime by planting a notorious thug. In other words, foxgloves, hesperis and the like. I also have a couple of mimulus (guttatus, I think) and astilbes (but suspect the woods are a tad too dry for these....but as freebies, we must try...
I would also be inclined to grow goldenrod (lysimachia aureum) and have got seeds for lysimachia ephemerum.