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Thalictrum flavum ssp. glaucum |
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| Synonym(s) |
Thalictrum speciosissimum |
| Common name |
yellow meadow rue; dusty meadow rue |
| Family |
ranunculaceae |
| Life cycle |
perennial |
| Flowers |
yellow (June) |
| Size |
6' |
| Light |
sun-part shade |
| Cultural notes |
ordinary garden soil |
From seed  |
difficult. needs at least cold conditioning, possibly also warm conditioning.
detailed seed-starting info below
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Our garden sports many kinds of meadow rue, but this is the only yellow one. The plants in our two clumps are robust, not minding full sun and a bit of drought, and the blue-green foliage is a good backdrop to many other plants. We cut ours down after blooming, since it has some tendency to flop at that point.
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We left this plant behind in our Pennsylvania garden (and wish it well); we don't grow it in Houston. Read about all the meadow rues in our garden About my plant portraits
PlantLinks to other web pages about Thalictrum flavum ssp. glaucum
Visitors to this page have left the following comments| Kodyjane | Jul 15, 2008 | I purchased this plant from Ambergate Gardens in the fall of 2007. I planted it in a semi-shady area and it has grown to about 3 feet, but now it flops. I would like to move it, but do not know where to put it where it will look its best. What other companion plants and light exposure is best?
I recommend full sun, and soil that isn't overly fertile. It will grow taller than 3 feet most likely, so keep that in mind for placement and companions. |
| Jacqui | Jun 27, 2010 | Hi I love the pictures of your plants - beautiful. I've just bought this plant and have different zones in my garden regarding soil - the front garden is very free draining and sandy in full sun for practically the whole day (SE england)- and I have sunny aspects in the rear garden where the soil is moist and loamy. Would this stand a very free draining soil (which supports canary bird roses, photinia, tree lupins, ceanothus etc at present) or would it benefit from having more moisture in the back garden?? Many thanks for any advice!
I'd be more comfortable recommending the rear garden - even though I've never seen much drought stress on my plants, I don't know how they would manage very dry conditions. |
| Dany Disez | Jan 09, 2012 | Bonjour
je suis tombé sous le charme de cette belle plante dont je vais passer commande dans les jours à venir ainsi que du talictrum delavayi splendide tout aussi magnifique.....j'adore les plantes qui apporte de la hauteur au jardin .....
mon blog:
http://le-jardin-de-danyland.over-blog.com/ |
| Barbara | Oct 16, 2012 | Hi, I have grown this rue for many years, it is absolutely beautiful, but there is a problem. It has self-seeded and seedlings exhibit characteristics of the species - they are green-leaved and green-stemmed. Do you know if this is common?
Green instead of blue-green you mean? I guess I haven't paid all that close attention, but I don't think my seedlings are typically any different from the mother plants. That's indoor-grown seedlings - other thalictrums have self-sown in my garden, but not this one. |
| lilpossum | Jun 14, 2014 | Beautifully designed and informative site. Had no idea there were that many species of the plant. Could you possible go into greater detail regarding seed starting and exactly how you saved the seed. What does "Baggy" mean in relation to the temperatures you saved the seeds at. I have a Yellow Meadow Rue planted in full sun. In the almost 13 years I've owned it, it has never reseeded. This year I tried to saw off a small shaft off the end of the plant hoping to divide it. It has almost always flopped, save for the first few years when it was shorter in height and girth. Now thee plant seems to have really suffered since my shaving off the tiny shoot section and for some reason is resembling an over grown clump of tightly packed Iris that desperately need to be split: growth around the root edges, yet no shoots from the center of the plant. The tiny section I lopped off was at the very edge of the plant and about 1/2" big. The mother clump is probably close to 1' or larger in circumference. It is one of the few plants I purchased when I started my garden that has always thrived and not been knocked out by the extreme swings in weather we've had in the mid atlantic the past 8 or so years, or workman painting and doing roof repairs. It's also my favorite. We did have a very cold winter and more snow than we usually have last winter. Any advice on why the center of the stalks appears to not be producing shoots would be greatly appreciated, as would a dummies guide on exactly how to save the seed. I really would like to have some seedlings. When did you gather the seed, what did you save it in and how did you expose it to cold and heat again. Thanks so much.
Starting seeds in baggies is described on my baggies page. In my experience, T. flavum doesn't set as much seed as other thalictrums, and it can be a challenge to find the seeds among the seedheads.
Slicing off part of the plant should not have hurt it – perhaps it is just in need of a bigger overhaul (more radical division), or is getting shaded in its current location. I find that these thalictrums are easy to divide, although dividing such a large clump will likely take some time and muscle. Good luck! |
- Seed from '04 garden. Baggy 35F (9w; 3%G, 40d) - 70F (0%G, 3w)
- Seed for "T. speciosissimum" from NARGS '11/'12 exchange. Baggy 70F (3w) - 35F (4w) - 70F (11%G, 10-12d)
Try leaving at cold conditions even longer. Never observed self-seeding in the garden.
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