Category: Uncategorized (Page 6 of 25)

Seed of the Week: Scarlet Sage or Salvia

The mystery seeds from last week are from a plant in the same genus as garden sage, Salvia. They were from scarlet or Texas sage, Salvia coccinea.

scarlet-sage-flower-101

Scarlet sage is named for its bright red flowers.

scarlet-salvia-flower-stalk-tall

The flowers attract hummingbirds. In fact, in our yard we call it the “hummingbird plant.”

mystery-seeds-190-calyx

The seeds that form in these sepals (botanically a “persistent calyx”)  attract lesser goldfinches, as well.

scarlet-salvia-leaves

It is thought to be a native of Mexico and the southern United States. It is a perennial and, at least in Arizona, it reseeds readily.

scarlet-salvia-nice-multiples

We love it because it is fairly drought and shade tolerant, requiring very little care. It can get a bit overgrown and look weedy if over-watered.

Note:  Cultivated versions of this plant can have much larger, more showy flowers and they can also be pink, white, or orange in color. They may be somewhat difficult to distinguish from related species, such as pineapple sage.

Have you ever grown scarlet sage?

Seed of the Week: Common Buckthorn

Craig and Sara recognized our mystery seeds from last week as buckthorn. In fact they are from the common buckthorn, Rhamnus cathartica.

buckthorn-forest

Common buckthorn is a small weedy tree. It is originally from the Old World, and can form dense stands that shade out indigenous plants here in North America.

buckthorn-trees

Fortunately buckthorns are not long-lived trees.

buckthorn-rust

They are also carry, and are susceptible to, rust diseases.

Rhamnus_cathartica(Illustration from Wikimedia is in the public domain.)

Common buckthorns have inconspicous white flowers that ripen into black berries after pollination.

buckthorn-berries

It is said that birds eat the berries, but they are toxic to mammals, including humans.

buckthorn-leaves-more

A related plant, Rhamnus frangula or glossy buckthorn, is also from the Old World and looks similar to the common buckthorn. The margins of the glossy buckthorn leaves are entire, which means they lack the serrations or teeth along the edge you can see in the common buckthorn leaves in this photograph (click on center “fruit” photograph here for a clear look at a glossy buckthorn leaf).

Both common and glossy buckthorns have a negative reputation. Do common buckthorns have any redeeming qualities? What do you think?

 

Seed of the Week: Little Leaf Cordia

Our mystery seeds from last week are from a plant that is relatively new to landscape use in Arizona and gaining popularity, the little leaf cordia, Cordia parvifolia. Cordia’s are sometimes called “Geiger trees” in homage to Captain Geiger who first grew one in Florida (story here).

little-leaf-cordia-flower-cluster

Little leaf cordia has lovely clusters of crisp, white flowers.

lifftle-leaf-seed-formation

The seeds form in these fuzzy pods. The seeds apparently do not germinate readily, and the plants are often grown from cuttings.

little-leaf-cordia-leaves

In case you were wondering, the little leaf cordia does have relatively small, gray-green leaves.

little-leaf-cordia-branch

It is a medium-sized shrub that tolerates dry conditions and heat very well.

little-leaf-cordia-flower

Do any cordias or Geiger trees grow where you live? What do their seeds look like?

« Older posts Newer posts »