Q: I have a Daphne odora that has grown over a walkway. I’ve heard they’re temperamental. How far back can I prune it without hurting it? A: Daphne odora is indeed a temperamental shrub. It’s one of ...

Reported in this paper is a karyomorphological study on one natural population of each of eight varieties in the Spiraea japonica complex. The interphase and mitotic prophase can be classified into ...

Bright pink flowers that are a magnet for pollinators and easy to grow— what's not to love? While the showy blooms may draw you in, Japanese spirea (Spiraea japonica) is an invasive species that can ...

Conservation of rare species often involves restoration efforts to enhance or expand existing populations, a critical step of which is seed germination. Seed germination can be especially problematic ...

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Spring-blooming shrubs like forsythia should be left alone until flowering is over. (Photo by Neil Bell) By Kym Pokorny, OSU Extension Service CORVALLIS, Ore. – You've got clippers in hand, a shrub in ...

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