Had to include this plant portrait now because this baby’s fall color is on fire! We had wanted to portray Spirea thunbergii ‘Ogon‘ (a.k.a ‘Mellow Yellow’) in a blog post last spring, but there are always so many plants vying for our attention at that time of year. Not that this Spirea doesn’t. As a matter of fact, it is one plant we never tire of, and include it in many of our landscape installation projects.
Unlike most Spirea, this species has narrow willow like foliage that emerges a bright lemon yellow in early mid spring. White flowers adorn the arching branches just prior, and as the leaves unfurl. Although they are sweet enough, they aren’t why you should grow this shrub. Grow this Spirea for the texture and color the foliage provides year round, and which as you can see here, is an especially grand finale of volatile color in November.
Spirea thunbergii ‘Ogon’ is hardy to minus 20F (zone 5), and grows quickly to a height and width of 4-5′. It’s very happy in full sun, but grows well in partial shade, and seems to withstand poor dry soil conditions without hindering its performance. Like all Spirea it can be cut back hard in the spring if you choose to keep it shorter, but you’ll sacrifice the flowers. We could go on and on about which plants to use in combination with ‘Ogon’, but the list is practically endless. May we suggest Acanthus spinosus, Fothergilla ‘Blue Shadow’, Japanese maples of any form, Geranium ‘Rozanne’.…..(we could go on and on).
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