Senna Species, Feathery Cassia, Silver Cassia, Silver Senna

This gorgeous evergreen Australian native is naturalized throughout Washington county, Utah (zone 8a - 9b). The desert areas immediately ...Read Moresurrounding the city of St. George have the densest population, but I have found them growing out in the middle of nowhere on the very tops of mesas with cacti, yuccas, mesquites, and other Mojave Desert species. They have reached areas where very little human activity occurs, so I’m guessing birds are helping them on their quest throughout S.W. Utah. This species doesn’t seem to be too “invasive” so far, as the population hasn’t become dense enough to really out compete our native Mojave Desert plants. This plant actually fits in quite well with all the silver leaved, evergreen, desert adapted native flora of Washington county. It definitely doesn’t seem out of place whatsoever, and seems to benefit many native insects and other nectar eating animals. This is one species I don’t really mind having naturalized my home state, and hopefully that doesn’t change anytime soon. Senna artemisioides is a fantastic desert shrub, perfect for xeriscaping!

I’ve had this plant in the ground for several years in the south-East part of my garden. It is blasted with full Las Vegas sun and heat...Read More year-round, and it has grown to be quite big. It is about 3.5 feet tall and 4 feet around. It blooms profusely in the spring, and attracts lots of bees. It also serves as a way station for small birds that take shelter in the branches.

Many landscape companies prune these poor shrubs with hedge trimmers, making them look like “cupcakes,” which I suppose is a lame attempt at topiary, but it makes these shrubs look dreadful. I prefer their natural shape with a prune here and there.

This plant is great for hot, dry areas.

A sturdy plant that grows quickly and takes the desert heat well. It looks so graceful and delicate but maintains excellent health with l...Read Moreittle fuss. This spring it was covered with yellow flowers, and although yellow is not my favorite flower color, the aroma was very pleasant. We like these so much we put in three more!

I adore this plant, so delicate looking yet so low maintenance. Mine in planted in amended clay soil, receiving afternoon sun. I would ...Read Moredescribe it as a slow grower. Highly recommend.