Wax Begonias

What plant thrives indoors, shrugs off low humidity, and blooms all winter in bold shades of white to pink to red? Surprise! It’s wax begonias!

Also called fibrous begonias, these familiar bedding plants have large, round succulent leaves in either lime green or a beautiful burgundy- or bronze-red. Flowers have fleshy petals surrounding a bright yellow cluster of stamens. Plants grow to a height of about six to twelve inches. They tend to flop, creating a solid mass of color, and even trailing over walls and container edges.

Wax begonias are usually considered summer annuals. It’s true that they do well in our gardens, given light shade or (preferably filtered) sun. Space them a foot apart in soil high in organic matter and keep the roots evenly moist. Happily, pests are usually not a problem—even the deer tend to leave them alone!

 

Flowering Cabbage

(Brassica oleracea)

Appearance
Cold-resistant flowering cabbage takes the stage after tender annuals have succumbed to Fall’s first frosts. Flowering cabbage isn’t really a flower, but a loose head of large ruffled, fringed, or smooth leaves in vibrant combinations of cream rose, purple, and green. Although grown as an ornamental, flowering cabbage, also known as ornamental or flowering kale, is completely edible.

Cultivation
Technically a biennial, these cabbages are grown for the open rosettes that forms the first season. Summer heat results in stunted or leggy plants that are often attacked by cabbage loopers; plants are at their best in cool fall weather. Frosty nights intensify the colors. In late August or September, set seedlings out 15 – 18 inches apart in full sun. All cabbages prefer rich, moist soil.

Landscape use
Ornamental cabbages are most typically massed as bedding plants. Plants continue to look attractive for a while after the ground freezes. Use for fall/winter color, contrasted with dormant perennial grasses in shades of tan and gold, or harmonizing with groundcovers, such as some junipers, that turn purple in winter.

Article and photograph by Leslie Holzmann, Colorado Master Gardener.

 

Calibrachoa

Appearance
Imagine a petite petunia with intensely-colored, trumpet-shaped blossoms in shades such as magenta, violet, or copper. Flowers smother the slightly fuzzy, gray-green leaves from late spring until the first hard frost. Prolific flowering means that new flowers quickly replace those damaged by hail, a major asset in our area. Mature plants reach about eighteen inches in width and are less than a foot high. A relative newcomer on the garden scene, Calibrachoa has already gained a place of honor among annual flowers.