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woodyoak

flower performance of rodgersia

Kato and mxk3's comments on the front porch rodgersia flowers made me think about how their performance varies in my garden. This morning I took some pictures....

The showiest is, without a doubt, the ones in the front porch bed. The flower hanging over the driveway is ~18" long and an almost perfect cone! The flowers last for quite a long time and the seeds are initially green and attractive too. I usually don't cut off the flowerstalk until the seeds turn brown sometime in late July. These rodgersias face east and get full sun from sunrise until noon and then full shade (from the house) the rest of the day. The soil is awful, heavy clay and watering is erratic as the bed is under the roof overhang so doesn't get rained on much and we frequently forget to water that bed! The rodgersias are about 10 years old.
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There is also a younger rodgersia in the front in a bed along the east side of the garage. But the bed also has a Viburnum opulus and several large hydrangeas, so the rodgersia is in constant shade from those as well as from the plantings in the main front bed across a grass path. The rodgersia is quite small and I don't ever remember it blooming!
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In the backyard, the best flowering one at the moment is one under the oak, on the south side. It gets a fair bit of morning sun - as you can see in the picture below - but the bed is full of other plantings so the flowers get lost against them, resulting in a less showy impact than in the front porch situation.
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The rodgersias in the north alley take a backseat to the astilboides! That area is shaded in morning but does get some sun in the afternoon. The rodgersia usually flowers - but later and with smaller flowers. There is no sign of flowers yet, although the astilboides has put up one flowerstalk so far.
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I used to get a decent bloom from some rodgersias under the pines, in the area where I was working on creating a 'golden path' . I moved the rodgersias to a nearby area - they have survived - and one is returning in the original location from roots we missed, but I doubt they will do anything this year! The 'golden path' is likely not going to succeed as the 'Verdoni' false cypress died completely; the 'Golden Dream' boxwood looks dead too but the branches are still flexible so I'm waiting to see if any of it survives...; our little poodle has decided that the golden forestgrass is dog-candy so there's very little of that left!; the golden 'Full Moon' Japanese maple survived but took a bad hit from the winter; the 'Sum and Substance' hostas are doing OK, as are the two bright green dogwoods, so I'll see what happens there this summer. The rodgersias may end up reclaiming this spot!

The underlying soil in the backyard is also heavy clay - but it also has a 13 year accumulation of leaves and other 'forest' organic matter so is now in reasonable shape.

Where do your rodgersias grow and flower best?

Comments (17)

  • a2zmom_Z6_NJ
    9 years ago
    last modified: 9 years ago

    The differences are fascinating. It definitely sounds like morning sun is a key factor.

  • donna_in_sask
    9 years ago
    last modified: 9 years ago

    I only have the one, a bronze leaf rodgersia. It's about ten years old and planted under a hawthorn tree. This year it bloomed for the first time ever, at least I think so, the blooms are sort of hidden - they don't extend past the height of the leaves. I'm sure glad the foliage more than makes up for the sparse blooms.

  • katob Z6ish, NE Pa
    9 years ago
    last modified: 9 years ago

    Those really do look happy, and I love those healthy looking leaves. In your picture the shaded ones seem to show up well, and they look nearly as thick as the ones out front. Did you buy all the plants or are they divisions? Just curious since I always thought of these as one of those fussy plants that always looks better in European garden books than in real life... Not that Europeans aren't real, lol
    On the side of your house is that the goats beard? Doesn't look too shabby either!
    I hope a few more people chime in on some of the newer, darker foliage sorts. I seem to remember them mentioned here a few times last summer.

  • mxk3 z5b_MI
    9 years ago
    last modified: 9 years ago

    Mine usually bloom - not a lot of flowers, but they are HUGE so one or two make a big impact. Roger got morning sun as does his replacement, my other clump on the west side of the house gets evening sun and blooms nicely. Mine have a lovely fragrance, too, if I stick my nose in them - my beloved Roger threw his blooms right at nose level right outside the patio door. I miss him...

  • woodyoak zone 5 southern Ont., Canada
    Original Author
    9 years ago
    last modified: 9 years ago

    All my rodgersias are Rodgersia aesculifolia. R. pinnata are easier to find around here but I like the leaf size and shape of the R. aesculifolia better. All of mine were purchased - i.e. not divisions of a starter plant(s).

    I find them to be easy plants to grow - seem very adaptable to less-than-ideal conditions. This picture is of the ones under the pines that we had to move last summer to make way for the boxwood in the 'golden path' area:
    {{gwi:197345}}

    mxk3 - I have never checked the flowers for scent.... will have to do that tomorrow!

    kato - that's a dwarf Korean goatsbeard - pretty, but seeds like mad if you don't deadhead promptly!

  • woodyoak zone 5 southern Ont., Canada
    Original Author
    9 years ago
    last modified: 9 years ago

    mxk3 - I make a point of sniffing the driveway rodgersia flowers today - they do indeed have a very pleasant scent! Too bad they don't broadcast it a bit more....

  • Ruth_MI
    9 years ago
    last modified: 9 years ago

    This one gets some morning sun and late afternoon sun. It's a much more pink bloom at first, but stays a pinkish-brown for a long time.

  • Ruth_MI
    9 years ago
    last modified: 9 years ago

    I've had this one for many years. It's in increasing shade, and usually blooms, but I've had it skip years. It almost seems that there's a weather factor in addition to sun and soil.

    I'd say I usually have a few more blooms than I got this year.

    The blooms are older and more brown, and especially hard to see in the light right now...just ran out and took a quick shot with my phone.

    I have one more that's a very tall one, new last year, and in a ton of shade. It bloomed great.

  • woodyoak zone 5 southern Ont., Canada
    Original Author
    9 years ago
    last modified: 9 years ago

    Is the first one a R. pinnata? Rodgersias are such great plants, aren't they?! Your garden looks lovely - show me/us more...?

  • Ruth_MI
    9 years ago
    last modified: 9 years ago

    Yes, I really love the rodgersia. I'm still very jealous :-) of your astilboides, though, Woody. When I bought my first rodgersia, I think astilboides was called rodgersia tabularis, and that's what I thought I was getting.

    I don't remember which one the pink flowered rodgersia is. Maybe this picture will help.

  • woodyoak zone 5 southern Ont., Canada
    Original Author
    9 years ago
    last modified: 9 years ago

    Yes, astilboides used to be considered a Rodgersia I gather. Why don't you get one? They need lots of water in my experience but that is easily provided by siting them near the discharge point of a downspout - that's where my big ones are located. The ones I have elsewhere in the garden are wimpy, small things in comparison.

    I've just been Googling around trying to find out what the differences are between the various Rodgersia species. I haven't found one site that clearly sorts it all out but I gather pink or red flowers do not happen on R. aesculifolia but are the color for R. pinnata. Also, the leaflet arrangement in the picture you just posted is definitely pinnate more than palmate.

    Interesting searching for info - there are 5 species: R. aesculifolia; R. pinnata; R. podophylla; R. henrici; and R. sambucifolia. I'd never heard of some of those! Now I want to try them all....! :-)

    Also in searching around I found lots of references to one of the problems that happens with my front porch Rodgersias - namely that by August they are usually suffering from leaf scorch - too much sun and not enough water....! So, morning sun, but not too much; and don't forget (like we do!) to keep them well watered if they are in sun.

  • Ruth_MI
    9 years ago
    last modified: 9 years ago

    Well, there's the problem. I've already bought one (astilboides) and killed it. Did it again; killed it again. Then went three for three.

    I've over-fertilized, given it too much sun, but finally thought I found a nice shady, very moist spot. I guess it was too wet at times this spring. Last plant is now dead.

    If I ever find a nice-sized one, I'd likely try again, just because I really do love its look. But for now, I'll stick with the rodgersias, which I really do love too, and admire the pictures of your awesome astilboides!

    I struggle with ID'ing them as well. My third one is very large with flowers that come up to my chin (and I'm 5'6"). I just bought it last year and it had four or five flower stalks in lots of shade. It's in a spot where I can't get a good picture from ground level, so I took this looking down from the deck.

    All three of my plants have very different foliage from each other, and very different blooms, so not sure if they're three different types, or just seedling variations.

  • shadeyplace
    9 years ago
    last modified: 9 years ago

    I also killed an astilboides.but I have to get another and try again I just adore that plant. You can't beat morning sun...(for everything)!

  • woodyoak zone 5 southern Ont., Canada
    Original Author
    9 years ago
    last modified: 9 years ago

    Ruth - the leaves in last picture you posted makes me wonder if it's a R. podophylla since those one's leaves are supposed to have 'shallow lobes towards the tips' and the leaves in the picture you posted look somewhat like that, although most images of R. podophylla show quite definite lobes compared to those in your picture. But the flower panicles are supposed to be relatively short - 1' or so - so that doesn't match your description of tall flowers! However, I've also found places saying 3' flowers... I wonder whether the difference is due to measuring the whole flowerstalk vs measuring just the flowering portion? One reference I found said there was a lot of natural hybridizing between the species, so perhaps you've got a mixed one..... I'm now on the hunt for a R. podophylla!

    I can't imagine that conditions were too wet this spring for your astilboides. The first ones I ever saw were growing at the edge of an irrigation pond at a nearby nursery. They were in full sun so obviously needed the water. They were enormous! Perhaps though, the harsh winter cold that froze the ground deeper than normal combined with wet and shade to overwhelm them this year. Mine came through the winter fine, although they were slower than usual to emerge. Mine get water from one of our downspouts, as well as from a downspout on the neighbour to the north's house. Snails do munch on the leaves at times, so perhaps the snails got yours....? Here, the plants get shade until about 2:00 in the afternoon when they get a couple of hours of sun before they go back into dense shade from the house. shadyplace - I'm sure, in your zone, they'd need that morning sun instead.

  • Ruth_MI
    9 years ago
    last modified: 9 years ago

    Woody - I bought the pink-blooming one and the one with the more lobed leaves at the same place. At the time I bought the pink-blooming one, they sold both aesculifolia and pinnata 'Fireworks' (looking at an old catalog). I'm guessing mine might be the latter.

    Last year (when I bought the bottom one, I see that they only sold aesculifolia. So that must be it. When I look at Google images of aesculifolia, there are a few that look like it, although most don't.

    I thought the astilboides would love its new home. I'm really not sure what happened, but will keep my eyes open for one.

    Here is a link that might be useful: called aesculifolia and looks like mine

  • woodyoak zone 5 southern Ont., Canada
    Original Author
    9 years ago
    last modified: 9 years ago

    Ruth - the picture in the link you gave looks like the R. podophylla in the Missouri Botanical Garden link below. See the RHS picture of R. aesculifolia at:

    http://www.rhs.org.uk/Plants/15918/Rodgersia-aesculifolia/Details

    to see that it doesn't have those extra lobes at the ends of the leaflets like the R. podophylla does. I like the look of that extra lobe detail, which is why I'm now looking for one! (I see it listed in the catalog of the same nursery that had the huge Astilboides by the irrigation pond - I'll have to go check it out someday soon....!) The R. podophylla is also supposed to be bronze in the spring while R. aesculifolia is green (although, for mine, the initial shoots emerging from the ground are browinsh but they unfurl to green right away). Are the leaves on yours green or bronze in spring?

    Here is a link that might be useful: R. podophylla