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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 Ï㽶ÊÓƵֱ²¥˜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:

Ï㽶ÊÓƵֱ²¥¢ native rabbitbrush shrub has outstanding golden-yellow bloom atop silver foliage

Ï㽶ÊÓƵֱ²¥¢ Russian sage (Perovskia) has silver foliage and blue flowers

Ï㽶ÊÓƵֱ²¥¢ tall sedumÏ㽶ÊÓƵֱ²¥™s Ï㽶ÊÓƵֱ²¥˜Matrona,Ï㽶ÊÓƵֱ²¥™  Ï㽶ÊÓƵֱ²¥˜Autumn JoyÏ㽶ÊÓƵֱ²¥™ and Ï㽶ÊÓƵֱ²¥˜BrilliantÏ㽶ÊÓƵֱ²¥™ 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

Ï㽶ÊÓƵֱ²¥¢ tasty garlic chives (white flowers).

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

Ï㽶ÊÓƵֱ²¥¢ Missouri evening primrose (Oenothera macrocarpa) Ï㽶ÊÓƵֱ²¥” large yellow blooms

Ï㽶ÊÓƵֱ²¥¢ hardy ice plant (Delospermum cooperi) Ï㽶ÊÓƵֱ²¥” a ground cover with fuchsia pink flowers

Ï㽶ÊÓƵֱ²¥¢ WalkerÏ㽶ÊÓƵֱ²¥™s Low catnip (Nepeta Ï㽶ÊÓƵֱ²¥˜WalkerÏ㽶ÊÓƵֱ²¥™s LowÏ㽶ÊÓƵֱ²¥™) Ï㽶ÊÓƵֱ²¥” 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:

Ï㽶ÊÓƵֱ²¥¢ blue leadwort (Ceratostigma plumbagnoides)

Ï㽶ÊÓƵֱ²¥¢ Japanese anemone (Anemone Ï㽶ÊÓƵֱ²¥˜RobustissimaÏ㽶ÊÓƵֱ²¥™) Ï㽶ÊÓƵֱ²¥“pink blooms, will grow in full sun or part shade. It grows vigorously, especially in rich soil or too

Ï㽶ÊÓƵֱ²¥¢ Blue mist spirea or bluebeard (Caryopteris Ï㽶ÊÓƵֱ²¥˜Dark KnightÏ㽶ÊÓƵֱ²¥™) is a five by five foot silvered leaved shrub. Its deep blue flowers are a pollinator magnetÏ㽶ÊÓƵֱ²¥”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 Ï㽶ÊÓƵֱ²¥˜MoonshineÏ㽶ÊÓƵֱ²¥™ (soft yellow), A. Ï㽶ÊÓƵֱ²¥˜Terra CottaÏ㽶ÊÓƵֱ²¥™ (salmon/terra cotta), and A. Ï㽶ÊÓƵֱ²¥˜PaprikaÏ㽶ÊÓƵֱ²¥™ (scarlet with yellow eye).

Rudbeckia Ï㽶ÊÓƵֱ²¥˜GoldsturmÏ㽶ÊÓƵֱ²¥™ and Echinacea Ï㽶ÊÓƵֱ²¥˜MagnusÏ㽶ÊÓƵֱ²¥™ 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 Ï㽶ÊÓƵֱ²¥˜Stella dÏ㽶ÊÓƵֱ²¥™OroÏ㽶ÊÓƵֱ²¥™ daylily blooms from June into September.

Rugosa roses Ï㽶ÊÓƵֱ²¥˜HansaÏ㽶ÊÓƵֱ²¥™ and Ï㽶ÊÓƵֱ²¥˜Nearly WildÏ㽶ÊÓƵֱ²¥™ 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. TheyÏ㽶ÊÓƵֱ²¥™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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