Focus on Flowers

A plant that attracts butterflies to our garden is the pincushion flower. The botanical name is Scabiosa, and these plants usually have blue, white, or pink flowers. As their common name suggests, the shape of the flower resembles a pincushion as the central florets form a rounded shape.
There are approximately 80 species in the genus, and some are annuals as well as biennials and perennials. These plants hate wet feet in the winter and thrive in full sun and well-drained, neutral-to-alkaline soil. Deadhead frequently to keep them blooming and divide them in the spring. If you do remember to consistently deadhead these plants in the summer, you will encourage them to bloom well into the fall since they do not mind some frost in the air.  
The blue Scabiosa caucasica, hardy in zones 4-10, is 18-24 inches high and as broad. The cultivar ‘Miss Wilmott’ has white flowers which are lovely in mixed bouquets, and the cultivar ‘Clive Greaves’ has especially lovely lilac-blue blooms.
There is a large-sized pincushion-type plant, sometimes called Scabiosa gigantea, that can grow up to 6 feet tall with yellow flowers on long stems. It is actually Cephalaria gigantea, which grows easily from seed. Both the average-size and the large-size pincushion plants are lovely and rewarding to grow, and especially enhance cottage-type gardens.

The genus Veronia has over 1000 species and is a member of the aster family. The name honors an English botanist, William Vernon. Many species of veronia are native to North and South America, and others come from Africa and Southeast Asia. 
Veronia is the Botanical name for the native ironweed that pops up and self-seeds in my Midwest garden. It is a tall plant and has clusters of dark purple flowers. Its full name is Veronia altissima. 
The dark green leaves are long and narrow and oval in shape. The plant is deer resistant and attracts hummingbirds and butterflies. It is a good cut flower to add to bouquets of blue mist flower, golden rod, zinnias, and marigolds that all bloom at the same time in my yard. 
It is native to the Eastern United States, north to New York state and Canada. It grows 3-7 feet tall and sometimes even higher, so it is a plant to look up to (literally), especially when one is cutting the flowers. 
It likes moist soil best but is not really fussy and blooms July through September/October depending on the weather.
One often sees Veronia on roadsides and in fields and ditches. The wind disperses the seeds, which explains why it is a surprise when it appears in our gardens like an uninvited guest.
At first, I used to cut it down thinking it was just a weed, which in a way it is. But the dark purple flowers now make me happy that it arrived uninvited.

Most perennials we should cut back in the fall. They don’t look good once it gets cold, so it is best to cut them to the ground and they will come back well next spring. 
Bearded iris should be cut to about 6 inches and remember to cut their flower stalks right to the ground as well. Also, bee balm (Monarda), especially if it has powdery mildew and seed heads that will fall and provide a multitude of new plants. Blackberry lilies also self- seed far too much unless they are cut back. 
Gaillardias also benefit from cutting back, and of course, fennel needs to be chopped right down. 
I cut my catmints back after their first bloom of the year so they will bloom another time, and then at the end of the season, I whack them down again. Columbine should be pruned right after the first frost and be sure to get rid of all leaves showing any leaf miner damage. 
Cut back coryadalis hard, and crocrosmia and daylilies too, to prevent diseases.
A really good fall clean-up is essential to prevent the overwintering of pests and diseases. It also sets the stage for the garden’s spring display when the daffodils and other bulbs perform so well. So, cut down perennials that are past their peak in the cool days of fall, and in the spring next year you will be so glad that you did.

Joe Pye Weed is a North American native and hardy in zones 4-9. It can grow up to 7 feet tall and is deer resistant. The genus name is Eupatorium and a common name is bone set. It has rounded clusters of pink fuzzy flowers during late summer and fall. The statuesque plants like full sun or part shade and will grow in average soil. Over time they grow to make clumps that are 3-4 feet wide. Propagate them by division. 
These are large plants so need plenty of room. Newer shorter varieties are available. For example, ‘Baby Joe’ is compact, so easier to site in small gardens. However, if you want a tall naturalistic planting, pair the tall Joe Pye Weed with golden rod and the purple flowering iron weed. 
A splash of sunshine yellow, such as large sunflowers or other species of helianthus, can make a tall naturalistic planting really pop when they bloom concurrently. Some purple aster could also add to this type of fall display, especially on the perimeter of a garden, or as a background in front of a line of trees or wooded area. 
It is a mix of color that shows up well from a distance, and the tall plants will tend to shade out stray weeds. 
Hollow-stemmed Joe Pye Weed ‘Fistulosum’ likes a moist site so is great for a rain garden.

As summer transitions into fall, we usually rely on mums and asters to give us color as the growing season wanes. But some other reliable bloomers are our native Culver’s Root, which has the botanical name Veronicastrum Virginicum and a good variety is ‘Fascination’. It is a tall plant, 36-48 inches high and 15 to 24 inches wide, so you need space for it and full sun and well- drained soil. However, it is easy care and does not need to be staked. It is hardy zones 3-9.  
Hyssops also bloom late, and there are pretty blue flowering ones as well as the lovely sunset hyssop with reddish pink blossoms, hardy zones 5-9, also native to the US.
A low growing plant, plumbago, also provides beautiful blue flowers and then red foliage at the finale of the growing season. Let it creep along your driveway or spill over a wall and it will make you happy each fall.
Japanese anemones are useful too, although the deer sometimes eat some of mine. I love their pink or pure white flowers on tall wiry stems, and they spread well. 
If you need an edging plant that blooms late, liriope is useful and produces either blue or white flower spires above strap-like leaves. Cut this plant to the ground with a weed eater either late winter or early spring and fresh leaves will return to charm you.