|My feeble attempt at a close-up shot of the flowers|
In checking internet sources regarding the plant this morning, I discovered that it's commonly known as Lavender Grevillea, which I assume is intended to describe the foliage, although it reminds me more of rosemary than lavender. I also read that the plant is fragrant but the scent eluded my nostrils.
This is a mid-sized Grevillea, growing 4-5 feet (1.2-1.5m) tall and more than 8 feet (2.4m) wide. The largest of mine is over 5 feet tall but not quite as wide.
The other 2, including one I have placed along the pathway leading to our back slope, have been kept smaller with regular pruning.
Once established, these plants need only occasional water. On average, in the absence or rain, I probably irrigate the area they're in once a month. They're said to be hardy in USDA zones 9-11 (Sunset zones 15-24). According to San Marcos Growers, this plant can tolerate temperatures in the range of 20-25 degrees Fahrenheit (-6.7C). A Desert Northwest review of Grevilleas reported that 'Penola' handled a 12F cold spell but died during a more extended freeze.
The flowers attract hummingbirds. The plant is said to be susceptible to scale and spider mites but I've had no problems with either. It needs well-drained soil and placement in full to part sun.
All in all, Grevillea lavandulacea 'Penola' has been a good, low maintenance plant for me. For Loree's favorite of the week, please visit her site.