Succulents are hot-hot-hot – but not all of them can take the cold. Yuccas are just one of many kinds of succulents, but among their ranks are some of the hardiest and most handsome succulents that can grow in Portland gardens. In fact, there are some sixty species and subspecies, plus dozens of cultivars, that happily thrive in our climate – and most of them also flourish in climates even colder than ours. While most yuccas are native to the southwestern US and...

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