Osmanthus heterophyllus (Holly-leafed osmanthus) started blooming yesterday, and I'm thrilled. It's blooming at least three weeks earlier than last year, when it started blooming in November. Last year, just when the first blossoms started to open, we had a freeze, and all the flowers and buds were gone. Most people probably wouldn't notice. This plant is rated as hardy to zone 7 or even 6, but that's for the
plant, and not the
flowers. But that's why most people plant this tough shrub from Japan - for the leaves.
The leaves are said to resemble English holly, although the plant is much smaller, and leaves generally are not as lustrous (except one cultivar: 'Gulftide' which may be a hybrid with another species). Apparently, this plant is much loved in Japan, since there are quite a few cultivars. 'Purpureus' has purple new leaves, 'Goshiki' is a short bushy plant with splotchy/speckled variegation that to me looks like spider mite damage but to other people is delight itself.
Incidentally, "heterophyllus" as you might have guessed, refers to "different leaves" (although you might think it refers to being a "heterophyte," or a plant deriving its nutrition from other organisms, it's not). My plant once had holly-like leaves on the bottom, but rounded leaves at the top. Now it is only rounded leaves as you see in the photo. Like English ivy, the juvenille leaves are different from the mature form, although in holly-leaf osmanthus, the plant still blooms on the juvenille form. So "holly-leaf" is a misnomer in a sense, because that's only half the picture. There is a form 'Rotundifolius' which is only, as the name says, the rounded leaf form.
I didn't plant this plant for its leaves. I planted it for the flowers, which bloom in late fall, so late that some years I don't get to appreciate them. Although they are charming to look at, they certainly don't make a splash. I wanted the fragrance. I wish I could grow its relative O
smanthus fragrans, whose flowers smell like apricots simmering in honey, but alas,
O. fragrans is not hardy here (though I've recently learned that a variety O. f. 'aurantiacus' may be). So I planted
O. heterophyllus, which has its own delights. The flowers smell like an exotic blend of honeysuckle and green tea, and although the fragrance is not powerful, it carries a long distance, so that when I am in another part of the garden, I can detect even a few blossoms in bloom, and the plant can line its branches with hundreds of blossoms.
Of course I'm a bit curious about why the plant has bloomed almost a month early this year. Is it that the temperatures have stayed low enough to trigger a bloom cycle? Or is it that we are headed for a particularly cold winter?