Saturday, May 7, 2011

A plant I fancy: Oxydendrum arboreum

*Updated to ensure pictures are properly credited
Scientific name: Oxydendrum arboreum
Common name(s): Sourwood, sorrel tree
Height x Width: 25-30' x 20'
Growth rate: slow
Hardiness: Zones 5-9
Soil: Prefers acidic, well-drained soil that is high in organic matter
Light: Full sun to partial shade


Courtesy Missouri Botanical Garden PlantFinder
 Reasons I like it:
  • It's a native plant and although it normally appears in more mountainous areas, sourwood is local to Maryland
  • It provides multi-season interest with flowers midsummer, bright red foliage in the fall, and interesting fruit capsules and bark during winter
  • It has a fairly narrow canopy

Courtesy Missouri Botanical Garden PlantFinder
 Where would I put it?
In the front yard, either in the island or along the left property line

Courtesy Missouri Botanical Garden PlantFinder

I've been considering a combination of serviceberries and a redbud for the front yard island bed, but now I'm leaning towards a sourwood instead of the redbud.  It's a more slow-growing tree, so it probably wouldn't outgrow the space any time soon.  Furthermore, it has a much more narrow canopy, so it wouldn't shade out all of the grass my husband is working so diligently to grow.  Finally, it's a little more unique and a little less showy than a redbud. 

We have so many other flowering shrubs in the front yard, a redbud that flowers pinkish purple at the exact same time wouldn't make as much of an impact as a tree that blooms when everything has finished and then has really brilliant fall color.  Since it has similar soil preferences to azaleas, it should do well in a bed with them.  I've also see the suggestion to plant it with pieris japonica and lily of the valley which would echo the delicate urn-shaped flowers. 

Although it is a native tree, I can't remember ever seeing it and I'm not even sure it's available in the local nurseries.  Have you ever see a sourwood tree?  How do you think it holds up against a redbud?

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