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Steele: Colourful, fall blooming xeriscape plants at H2O

While autumn officially began Sept. 22, with any luck we will have another month to enjoy fall colours in the garden.
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Sedum 91ÂãÁÄÊÓƵ˜Autumn Fire

There are many water-wise plants that bloom in the fall in addition to some summer bloomers that continue into the fall.

For the extremely dry garden in late summer and fall:

91ÂãÁÄÊÓƵ¢ native rabbitbrush shrub has outstanding golden-yellow bloom atop silver foliage

91ÂãÁÄÊÓƵ¢ Russian sage (Perovskia) has silver foliage and blue flowers

91ÂãÁÄÊÓƵ¢ tall sedum91ÂãÁÄÊÓƵ™s 91ÂãÁÄÊÓƵ˜Matrona,91ÂãÁÄÊÓƵ™  91ÂãÁÄÊÓƵ˜Autumn Joy91ÂãÁÄÊÓƵ™ and 91ÂãÁÄÊÓƵ˜Brilliant91ÂãÁÄÊÓƵ™ have pink to reddish flowers loved by bees. They have great foliage the rest of the growing season and add interest to the garden in winter

91ÂãÁÄÊÓƵ¢ tasty garlic chives (white flowers).

Plants in the dry garden that bloom from June to frost without deadheading are:

91ÂãÁÄÊÓƵ¢ Missouri evening primrose (Oenothera macrocarpa) 91ÂãÁÄÊÓƵ” large yellow blooms

91ÂãÁÄÊÓƵ¢ hardy ice plant (Delospermum cooperi) 91ÂãÁÄÊÓƵ” a ground cover with fuchsia pink flowers

91ÂãÁÄÊÓƵ¢ Walker91ÂãÁÄÊÓƵ™s Low catnip (Nepeta 91ÂãÁÄÊÓƵ˜Walker91ÂãÁÄÊÓƵ™s Low91ÂãÁÄÊÓƵ™) 91ÂãÁÄÊÓƵ” silver foliage and blue flowers.

Blanket flower (Gaillardia), a good cut flower, will repeat bloom if deadheaded.

Long blooming annuals include marigolds, sunflowers, verbena, gazania and portulaca.

Okanagan native flowers that bloom from June to frost are golden asters (Heterotheca villosa) and showy aster (Aster conspicuus).

The later is a vigorous spreader by seeds and roots so only use it in a wild garden or for erosion control.

Native Aster ericoides has starry white flowers in fall.

Fall blooming plants that need some supplemental water in the dry heat are:

91ÂãÁÄÊÓƵ¢ blue leadwort (Ceratostigma plumbagnoides)

91ÂãÁÄÊÓƵ¢ Japanese anemone (Anemone 91ÂãÁÄÊÓƵ˜Robustissima91ÂãÁÄÊÓƵ™) 91ÂãÁÄÊÓƵ“pink blooms, will grow in full sun or part shade. It grows vigorously, especially in rich soil or too

91ÂãÁÄÊÓƵ¢ Blue mist spirea or bluebeard (Caryopteris 91ÂãÁÄÊÓƵ˜Dark Knight91ÂãÁÄÊÓƵ™) is a five by five foot silvered leaved shrub. Its deep blue flowers are a pollinator magnet91ÂãÁÄÊÓƵ”as are most blue flowers.

Blue flowered Aster frikartii blooms continuously from July to frost without deadheading.

Three well-behaved yarrows that bloom in June and, if cut back, bloom again in fall are: Achillea 91ÂãÁÄÊÓƵ˜Moonshine91ÂãÁÄÊÓƵ™ (soft yellow), A. 91ÂãÁÄÊÓƵ˜Terra Cotta91ÂãÁÄÊÓƵ™ (salmon/terra cotta), and A. 91ÂãÁÄÊÓƵ˜Paprika91ÂãÁÄÊÓƵ™ (scarlet with yellow eye).

Rudbeckia 91ÂãÁÄÊÓƵ˜Goldsturm91ÂãÁÄÊÓƵ™ and Echinacea 91ÂãÁÄÊÓƵ˜Magnus91ÂãÁÄÊÓƵ™ bloom from June to September. The latter benefits from deadheading in summer.

Both have excellent winter structure and attractive seed heads that provide bird food.

Yellow 91ÂãÁÄÊÓƵ˜Stella d91ÂãÁÄÊÓƵ™Oro91ÂãÁÄÊÓƵ™ daylily blooms from June into September.

Rugosa roses 91ÂãÁÄÊÓƵ˜Hansa91ÂãÁÄÊÓƵ™ and 91ÂãÁÄÊÓƵ˜Nearly Wild91ÂãÁÄÊÓƵ™ are profuse bloomers in late spring and fall as well as having some bloom through summer.

Long blooming annuals that have similar water needs are: osteospermum, petunias, cosmos, and calendula.

My favourite fall annuals are zinnias. They begin blooming in a multitude of vibrant colours in August and continue to frost. They91ÂãÁÄÊÓƵ™re an excellent cut flower.

Check the plant database at  okanaganxeriscape.org for more information and pictures of these and other fall blooming plants as well as plants that have attractive fall foliage colours.





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