Field of Science

Showing posts with label rock rose. Show all posts
Showing posts with label rock rose. Show all posts

Friday Fabulous Flower - Finally, a Sunflower sort of


The screwy weather of 2017 has some of TPP's plants confused. June was quite hot, July & August were cooler and wetter, September started cool but then got hot and very dry. And as Fall continued and the days shortened, the weather got cooler and rains finally relieved the drought.  But no cold weather even into early October (except for the last 24 hrs). so some plants are a bit confused about what time of year it is.  Today's sunflower, or more usually a rock rose, an ornamental variety generally placed in the species Helianthemum nummularium, a member of the Cistaceae.  The genus means sun flower, but so does Helianthus.  Members of this family, and this genus, and this species are pretty common ornamentals of the Mediterranean region, but most of them are not hardy here in zone 5.  It's a small, low, evergreen shrub that makes a nice border and ground cover.  After looking sort of rough most of the early summer and not flowering then (perhaps recovering from winter), one of two plants decided to flower now!  Pretty bright flower, but not a big display.  Nice in a  protected area. 
Busy weekend has put TPP behind.  

Not a rock, not a rose

Who needs a rationalization for planting all kinds of different plants? Let the Phytophactor admit to being a plant junkie, to having a certain penchant for strange but wonderful plants. And so while our estate is home to many native species, many exotics grace our gardens as well. Lately the cause of much interest among passersby is a low growing mound of an evergreen shrub covered with cheerful, colorful flowers, and it’s probably just about the only one around as our climate is a bit too cold, so it needs mulching and snow cover to survive our coldest temperatures. So far its luck is holding. This is a member of the rock rose family (Cistaceae), a smallish group more common around Mediterranean climates. This particular shrub is called Helianthemum, which means sunflower, so even scientific names can be a bit confusing and misleading (Helianthus is the other sunflower), but this isn’t one of our native species. Here the name refers to the plant’s habit of only opening its flowers when the sun is shining. Now think how much fun it is when you’ve got a class of plant taxonomy students who are thinking, Cistaceae, no way that shows up on a family ID quiz. Zingo!