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Focus on Flowers

Author: Indiana Public Media

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Focus on Flowers is a weekly podcast and public radio program about flower gardening hosted by master gardener Moya Andews.


1813 Episodes
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At this time of the year we usually read about gardens instead of gardening.I have been reading about deadheading—the way we ensure plants keep blooming by chopping off the spent flowers. This prevents them from forming seeds, which is a signal that no more flowers are needed by the plant.Annuals have to produce a lot of flowers because they only live for one year and so have only one flowering period to procreate. Perennials, on the other hand, have a second way of continuing in life: they can grow back the next year on their own roots so setting seed is not so crucial for them. That means that we don’t have to snip off every spent flower on the perennials, (though it does increase their vigor), the way we should with our annuals to keep them blooming. Most perennials will only bloom for a few weeks anyway.However, the whole garden looks better if plants are deadheaded, so it is a good thing. You can snip each flower off individually, or you can cut back a plant that has finished flowering by snipping half of the plant off with shears.Colorful flowers attract pollinators that fertilize them, so annual flowers are often especially showy as they need to be pollinated in a shorter time frame in order to perpetuate themselves. This is why we need a sequence of different perennials that bloom at varied times to have continuous perennial blooms in our gardens. Many of us find that deadheading is a calming repetitive activity that we enjoy, so we do a bit each day all through the growing season. It keeps the color coming.
Roses in Words

Roses in Words

2026-02-1201:59

In February, it is appropriate to think about roses.Here is what Gertrude Jekyll (1843-1932) wrote:"There is scarcely any rose that we can wish to have in our gardens that is not also delightful in the cut state. A china bowl filled with well-grown hybrid perpetuals, grand of color and sweetly scented, is a room decoration that can hardly be beaten both for beauty and for the pleasure it gives, whether in a sitting room, or on the breakfast table. The only weak point about cut roses is that their life is short."William Fitzroy (1851-1924) wrote: “The houses I love best are those where warm old red bricks and old roses seem to melt into each other.”Margaret Millfield in 1931 had this advice:"Plant your rose in a good square hole, keep it weeded; prune it once a year, thoroughly; apply a spade of manure in February and you will have blooms the rest of your life."And John Boyle O’Reilly (1844-1909) wrote this verse:"The red rose whispers of passion, and the white rose breathes of love;O, the red rose is a falcon, and the white rose is a dove.But I send you a cream- white rose bud, with a flush on its petal tips;For the love that is purist and sweetest, has a kiss of desire on the lips."
Tiny but Tough

Tiny but Tough

2026-02-0502:00

The earliest iris to bloom is the petite Iris reticulata.The reticulated irises have a fibrous network on the bulbs that is similar in pattern to the markings on a giraffe, which is also described as reticulated, “like a net.” These earliest blooming iris have 3- to 6-inch stems and they bloom with the crocus. To display the blooms indoors, I use a tiny bottle for each one.There are also intricate patterns on the small petals, and their beautiful colors—maroon, purple, lavender, white, and yellow—delight winter-weary eyes.Plant the little bulbs in drifts in the fall. Since they dislike wet feet, a good spot for them is in a sloping or raised bed so there is good drainage.Iris is the sacred flower of the Goddess of the Rainbow, and iris means “eye of heaven.” (It is also the name of the center of our eyes.)After their spring bloom, Iris reticulata bulbs should be given an application of granular fertilizer, sprinkled over them, and their leaves should not be cut down. They are hardy in zones 5 to 9 and are long lived if they are not disturbed. Plant these little bulbs 3 inches deep.These darling little miniature iris are the start of a progression of flowers of varying types of plants in the family Iridaceae. They are followed late in the spring by the taller Siberian iris.Try to grow as many different types of iris in your garden so that you can have a progression of these blooms until June each year. The deer leave them alone![Note: Try the following : Iris histrioides ‘George’ Zones 3 to 8, which are dark purple with gold marks, and Iris histrioides ‘Katherine Hodgkin’ zones 5 to 8.]Reference: Perennials Short and Tall: A Progression of Flowers for your Garden by Moya Andrews and Gillian Harris, Indiana University Press (2008), Page 67.
Easy Does It

Easy Does It

2026-02-0302:00

Quite a number of flowering annuals can be started by sowing their seeds directly into the garden. Wait until after the last frost in the spring when the soil has really warmed enough for seeds to germinate. I tend to pick up packets of seeds wherever I go so usually have a big stash of them, and it is fun to scatter them in my bare perennial beds. Since seeds are inexpensive, I throw them around with abandon expecting that they all won’t germinate, but hoping that some will and give me surprises later in the season. I especially love the tall blue/purple spires of larkspur, since delphiniums do not thrive in my climate. Last year I hopefully flung some into my bed of white German iris, and though the iris bloomed first, the larkspur looked lovely among the blue/grey iris foliage later. If I have big pots on my deck, I sow zinnia seeds into those. Even the small daisy-flowered variety ‘White Star’, which does not need to be dead-headed, does well in pots in full sun. Cosmos is a pretty, floriferous annual that can be scattered on top of the soil in beds, and it will bloom in 8 weeks. It has pretty foliage and is good for cutting, which stimulates the continued flowering all summer. Small French marigolds, the gold and brown ones, will germinate easily, also, and are very drought-tolerate, flowering until frost. And of course, I always save or buy Cleome seeds—better known by the common names of ‘Spider plant’ or ‘Cat’s whiskers’—and scatter them in the middle of beds or the back of borders because they grow tall and last a long time. Those I do not cut, as they are best left in the garden to produce seeds for the following year. Besides, I do not like their smell very much. Another favorite is blue Clary sage. Direct sowing is inexpensive, easy, and fun and usually results in a few surprises!
David Hosack

David Hosack

2026-01-2902:00

David Hosack was born in New York in 1769 and in a book about him by Kerri Miller, she states that he is responsible for the establishment of New York’s first botanical garden. There was an interview by Victoria Johnson on NPR that drew my attention to this. Hosack was a brilliant medical scientist who focused on medicinal plants. The Bartrams, earlier on, grew medicinal plants in their gardens in Philadelphia, but Hosak was the first to grow these plants in North America for scientific research purposes.Dr. Hosack studied medicine in both London and Edinburgh and then returned to North America to teach and practice at Columbia College in New York City. In London he had been trained in the classification of plants using the system developed by Linnaeus in the 18th Century. Miller describes in her biography how Hosack met Joseph Banks and other famous plant scientists in London in the early 1800s and became knowledgeable about European plants and their medicinal properties.When he returned to New York he realized the need for a public garden as a research facility for medical scientists and their students. He even wrote to President Jefferson to ask for plants gathered by the Lewis and Clark expedition. Later he became the personal physician of Alexander Hamilton and Aaron Burr. He used his own money, and later went into debt, to buy and maintain 20 acres on Manhattan Island to grow plants, including many natives that had not been known abroad, in order to study and teach students about their medicinal effects. His garden was the first scientific garden established on our shores.This is Moya Andrews, and today we focused on David Hosack.
Spring Ephemerals

Spring Ephemerals

2026-01-1502:00

Before long now, some of the earliest flowers to bloom will be stirring in our gardens.  Many of them are ephemeral, a descriptor that means “short lived” or transitory. In garden-speak, this means that these cold-hardy little plants bloom early and then die down leaving no trace until they return the following year. Most grow in woodland settings, where the soil is moist from late snows under deciduous trees and there is weak sunlight, as the trees have not yet leafed out. Some bloom even before al the snow has melted. Their early flowers can be picked and taken into the house for tiny vases. When the blooms fade, the plants set seed and then go dormant. They are at their best planted where they are not disturbed after they die down, though they co-exist well with low growing plants that grow up over the bulbs and shade them in the hot dry summers. The sunshine-yellow winter aconite is usually the first to bloom, followed by the snow-white snowdrops (Galanthus spp., zones 3-9), hardy cyclamen (Cyclamen coum, zones 5-9), bloodroot (Sanguinaria Canadensis ‘multiplex’, zones 3-9), Dutchmen’s breeches (Dicentra culcullaria, zones 3-7), Virginia bluebells (Mertensia Virginica, zones 3-8), and European wood anemones (Anemone nemorosa, zones 5-8).Later the red trillium (Trillium erectum, zones 4-9), and Japanese woodland primrose (Primula Sieboldii, zones 3-8) light up our gardens. The best way to get these early bloomers in your garden is to acquire starts from another gardener during the early spring, or you can find them listed in catalogs. Their dense root systems help them persist and colonize.Notes: Source material from Amanda’s Garden, Dansville, New York.
Interesting Quotes

Interesting Quotes

2026-01-0802:00

In 1785 William Cowper wrote:Who loves a garden, loves a greenhouse too. Unconscious of a less propitious clime There blooms exotic beauty, warm and snug While winds whistle and the snows descend.In 1974 Maya Angelou said, "Nature has no mercy at all. Nature says ‘I’m going to snow. If you have on a bikini and no snowshoes, that’s tough. I’m going to snow anyway’." And there is a Chinese proverb that makes many of us smile:If you would be happy for a day, get drunk. If you would be happy for a week, take a wife. If you would be happy for a month, kill your pig. But if you would be happy all your life, plant a garden.And Jude Patterson wrote, “In winter, when roots and seeds sleep under the crusted snow, the gardener is an artist hatching ideas for the coming season.”  But my personal advice to you in January is to be careful of all of those tempting offers that arrive in catalogs in the mail this month, as well as all of the seductive offers to order plants online. We are all so eager to have flowers on our gardens again, that we are susceptible to all of the plant offers that bombard us. But it really is too early to start ordering plants—January is too soon!—so try, if possible, to exercise some restraint.
Twelfth Night

Twelfth Night

2026-01-0602:00

During the middle ages, the Christmas season lasted for 12 days and reached a climax on Jan 6, which is called Twelfth Night.  We often wait, nowadays, until Twelfth Night to take down the Christmas tree and holiday decorations. Once everything is put away the house seems suddenly quite bereft, and we long for something natural and fresh.  January, of course, is a difficult month for garden flowers. Sometimes, however, one can unearth some long stems of ivy in the winter garden. In the summer, I am always trying to pull it out and get rid of it, but I am glad to see any green leaves in winter.  If you ever find any, cut some pieces and hammer the stems and submerge them in a sink of cold water overnight. Next morning, shake the water off and pat them dry with a towel before placing them in a vase.  With this background for an arrangement in place, you may be able to find a few other bits and pieces in the garden, for example, bare branches, berries, Bergenia leaves or even a Christmas rose (Helleborus), to add to the ivy. Otherwise, buy a few blooms to combine with the ivy and rationalize the purchase as absolutely necessary food for the soul.  Buy any color flower but red, as after the holidays red seems passé and our eyes have become tired of it.
Norah Lindsay

Norah Lindsay

2026-01-0102:00

Norah Lindsay (1866-1948) lived in the Manor House at Sutton Courtenay in Oxfordshire, England. She was admired for the way that she combined herbaceous perennials in borders, which were so popular during the Edwardian time in England. In her obituary in 1948 in the London Times it was described how she would trace out a plan for a whole garden in the dirt with the tip of her umbrella. She was known as one of the first amateur, but not quite professional, garden designers who were active in the years before and after World War I.Strongly influenced by Italian gardens, she was famous for her parterres. One that she planned is still maintained by the National Trust in England today. It was a formal planting using low plants and repetition of colors around a central fountain. Clipped yews and a Doric Temple in the distance added to its feeling of formality and structure. Norah Lindsay was born in Ireland but always admired the classical gardens of Florence and Rome. She created large-scale double borders that stretched down hillsides to create breath-taking vistas. Her husband, Harry Lindsay, was a flying hero during World War I, and she was so well-connected that she even advised the Prince of Wales on his gardens at Fort Belvedere. Lindsay was the Grande Dame of gardening in a time when ladies did not have professional careers.
Year's End

Year's End

2025-12-3102:00

Alfred, Lord Tennyson wrote a poem about the garden at the end of the year. This seems to be an appropriate time to share it with you. A spirit haunts the year’s last hours Dwelling amid these yellowing bowers: To himself he talks: But at eventide, listening earnestly, At his work you may hear him sob and sigh In the walks; Earthward he boweth the heavy stalks Of mouldering flowers: Heavily hangs the broad sunflower Over its grave in the earth so chilly; Heavily hangs the holly hock, Heavily hangs the tiger-lily. The air is damp and hushed and close, As a sick man’s room where he taketh repose An hour before death; My very heart faints and my whole soul grieves At the moist rich smell of the rotting leaves And the breath Of the fading edges of box beneath, And the year’s last rose. Heavily hangs the broad sunflower Over its grave in the earth so chilly; Heavily hangs the hollyhock, Heavily hangs the tiger lily.
Winter Musings

Winter Musings

2025-12-2802:00

Oscar Wilde in The Selfish Giant wrote the following words:  “He did not hate the winter now, for he knew that it was merely the spring asleep, and that the flowers were resting.”  And Anne Bradstreet, who died in 1672, wrote:  “If we had no winter the spring would not be so pleasant.”  Kathleen Norris sounded a little more impatient about winter when she wrote:  “There seems to be so much more winter this year than we need.”  Nancy Hutchens in her book A Garden’s Grace described plants that look good in winter. She said,  “The wheat-colored blooms of Hydrangea paniculata ‘Grandiflora’ add charm to my backyard—one at its entrance and another next to a red-twigged dogwood.” She continued: “…the tall black stalks and round heads of Rudbeckia, Echinacea, and bee balm are attractive and fill the bare ground with texture and interesting shapes… The sedum ‘Autumn Joy’ turned out to be another winter jewel. Its faded bronze was spectacular next to the pearly silver of a large Artemisia. As I began to think about how a particular flower or shrub would look in winter, I discovered many choices that enhanced the poor evergreens, who had been doing all the work alone."
Mistletoe

Mistletoe

2025-12-2502:00

The English colonists in Virginia used mistletoe to decorate their homes and their churches during the Christmas season. Mistletoes are evergreen parasitic plants with small leaves, yellowish flowers and waxy white berries.When sprigs are hung as a Christmas decoration, men are, by custom, privileged to kiss women who stand under it, according to the description of it in Websters Dictionary.When I consulted Hortus (Third Edition) I found that the type of Mistletoe the colonists probably used was Phoradendron serotinum, which is found on deciduous trees of Eastern North America.The seeds of this parasite germinate on host trees, and the plants attach themselves so that they can absorb fluids from the host. Since this type of mistletoe grows high up in the tops of hardwood trees, it is hard to gather.To add to this problem, it only becomes visible when the deciduous leaves have fallen from the trees. Luckily this happens at the right time of the years so that it is visible before the holiday season.Young colonial boys apparently enjoyed a popular sport known as shooting down the mistletoe.The mistletoe of literary fame is an old world variety known as Viscum album, and there is also a very showy red tropical variety. The State of Oklahoma adopted mistletoe Phoradendron flavescens, which blooms in the summer, as its floral emblem.
The Winter Solstice

The Winter Solstice

2025-12-2102:00

The first day of winter in the Northern Hemisphere is marked by the winter solstice, which for example, in the year 2023 occurs on December 21. For the northern part of the Earth, the winter solstice always occurs annually on either December 21 or 22. This solstice marks the day with the fewest hours of sunshine in the year, which means that it is described as the shortest day.  After the winter solstice, the days begin to grow longer until in the following June, we reach the summer solstice, which is the longest day of the year. The summer solstice is the day when many flowers in gardens are in bloom and so many garden-related events in our area are usually scheduled on or near the summer solstice.  When the Northern Hemisphere is experiencing the winter solstice in December, the Southern Hemisphere, of course, is experiencing its summer solstice. In Australia, where I grew up, for example, it is high summer in December, and it is winter in June.  Depending on where you live in the world, the same plants flower but at different times in the year. Near to the Equator, however, the weather remains warm enough for flowers to grow throughout the entire year. Hence the billion-dollar cut flower industry in South America, which supplies the flowers in our stores for us to buy year-round.
Winter Words of Wisdom

Winter Words of Wisdom

2025-12-2002:00

This winter I have been reading some garden writer’s words of wisdom, which now I will share with you. In 1899, Gertrude Jekyll wrote: “For I hold it that the best purpose of a garden is to give delight and to give refreshment of mind, to soothe, to refine and to lift up the heart.”And Sara Stein in 1988 wrote:“January is the best time for gardeners. From the window of the attic where I write, the gardens are bare to their bones, neat and clean, nicely edged, weed free. They are an empty page on which to draw the garden of my dreams.” And in 1954 Georgia O’Keefe, who painted so many glorious flowers, wrote the following words that completely surprised me. She said, “I hate flowers. I paint them because they’re cheaper than models and they don’t move.” More profound are the words spoken by Lydia Child in 1842. She said, “Flowers have spoken to me more than I can tell. They are hieroglyphics of angels, loved by all for the beauty of their character. Though few can decipher even fragments of their meaning.”However, “anonymous” has the last piece of wisdom for us:“In gardening I have one gift you won’t find in manuals, but I can change perennials into annuals.”
Many tropical plants, and also some temperate zone plants that resemble tropicals, make excellent house plants in cold climates. One fairly easy to grow but underused example is the South East Asian native with the common name of jewel orchid. Its botanical name is Ludisia discolor. This is a terrestrial plant that grows in soil in a pot, and it has narrow leaves. The color of the leaves varies from dark red to maroon and there is striking veining. The leaves grow on succulent stems that hang over the sides of the pot. The flowers appear in late winter to mid spring and are white in color and a little like snapdragons in form and are white in color. This plant likes cool temperatures at night and soil that stays just slightly moist, so do not over water these beauties. Afternoon shade is best, so they do not like a windowsill on the western side of the house. Jewel orchids are available with several different types of patterned leaves with silver-gold veining. This type of foliage guarantees a handsome house plant even when it is not in bloom. The name is a little deceptive because this plant is not like the orchids that grow on trees.
Hoya

Hoya

2025-12-1102:00

Epiphytes are plants that get nourishment from the air. They are non-parasitic, but they frequently, for example orchids, grow on another plant such as a tree. When they are grown in a pot, epiphytes prefer a growing medium made up of two parts soil-less mixture and one-part fine bark mix. A favorite house plant of many people is the hoya, an epiphyte vine that is commonly called wax plant. There are many varieties of this plant, and the shape, color and texture of the leaves depends on the species. The flowers, however, always come from little umbrellas called peduncles. After the blooms drop, the peduncles should be left in place as they will continue to grow and bloom. Hoya is a member of the milkweed family so the seeds are in silk in pods. The easiest way to propagate, however, is to root cuttings dipped in rooting hormone and placed in a soil-less mix for about six weeks. The plants enjoy indirect light and weekly watering, with fertilizer every second week. Hoya lacunosa has especially fragrant blooms and grows compactly in a hanging basket. However, there are many other delightful ones such as the H. shepherdii with lovely pink flowers, as well as a sweet perfume. Hoya is easy for me to remember as it is one of the only words in the English language that rhymes with Moya.(Reference: Zachos, Ellen, “All Stars of the Indoors,” Horticulture Magazine, Vol. 105, #1 Dec/Jan 2008, pp40-45.)
Annuals for Pots

Annuals for Pots

2025-12-0402:001

Torenia is a pretty annual that hails from tropical African and Asian woodlands. This branching annual is not frost hardy but grows rapidly to a height of about 12 inches with a spread of 8 inches. It flowers in summer and fall, producing racemes of trumpet-shaped, two-lipped flowers that look a bit like snapdragon blooms. There are two lobes on the upper lips and three lobes on the lower lips. Torenias make attractive plants for containers in sheltered positions. Pinch out the growing shoots of young plants to encourage them to get bushy. Now that we have had our first frosts in the Midwest, I am thinking about what to plant next year. ‘Summer Wave’ is a trailing, long-flowering strain of torenia that has large blue flowers, but purplish-blue, red, pink and white varieties are also available. The leaves of these plants are light to dark green and ovate to elliptical in shape, and they have toothed edges. Grow them in fertile, well-drained soil in part shade. Another pretty blue annual to consider next spring is Scaevola, or fan-flower as it is also called. I am partial to it as, like me, it hails from Australia. It has profuse blue, mauve, purple, or white flowers in sun or part shade, and it drapes well over the sides of pots. ‘Blue Wonder’ is very pretty as well as being drought tolerant.
In her book Making Things Grow---a Practical Guide for the Indoor Gardener, Thalassa Cruso calls succulents “neglectable plants.” That is because all fleshy-leaved succulents are slow to lose the water stored in their leaves. They also can go into dormancy to conserve water during drought. Cruso says that is why succulents make such good houseplants, thriving in the hot dry conditions in our homes and allowing us to, on occasion, neglect them. Of course, the degree of succulence in the tissues of plants varies, but the amount predicts just how long a plant can go without any water. Gloxinias and African violets are succulents, as well as hoyas, sempervivums, sedums and the various types of cacti. At this time of the year, the Thanksgiving and Christmas cactus plants are getting ready to delight us with their colorful flower displays for the holidays. Some experts advise us to withhold water from these plants for the month before their expected season of bloom to precipitate dense flowering.Also with all succulents, always repot using a dry soil mix and never bury any of the leaves. These plants require less water than other houseplants, and they will rot if they become waterlogged so water sparingly and only when the soil is quite dried out in the pot. Succulents are durable plants and can usually be left at home alone, while we vacation.
Hyacinths were first found growing in Asia, but because of the efforts of Dutch growers, there are now many varieties in the genus Hyacinthus. Most bloom in the spring from bulbs planted in the fall. The showiest are the bedding size ones with masses of florets completely surrounding 10” stems. They are dramatic planted in the sun in groups. Probably because of their strong fragrance, deer avoid them. Deer also avoid the smaller, very hardy and versatile grape hyacinth, Muscari armeniacum, which will grow in sun or shade. Its flowers are small and bell shaped, arranged in a cone, and held erect on six-inch stems. They are a wonderful cobalt blue, which is rare in flowers, but white and paler blues have also been developed. They multiply and are great mixers with other spring flowers and naturalize happily.  Another hyacinth, Hyacinthoides non-scripta, also naturalizes well and is actually the English woodland bluebell, which thrives in shade. These bulbs were first brought to England from Persia in the 16th century but are now considered to be thoroughly English. Look for them under the name of wood hyacinth.Whether you prefer the large hyacinths that are synonymous with the Dutch or the smaller ones beloved by the Brits, do plant some hyacinth bulbs this fall.
Sage

Sage

2025-11-1302:00

Even after a heavy frost, the stalwart perennial sage plant stands erect in the garden. It shows its elegant silvery grey color even in winter reminding us that next spring it will give us fragrant lavender flowers. Common garden sage, Salvia officinalis, is a staple in the herb garden and a plant for all seasons. The genus Salvia contains both aromatic and non-aromatic varieties, and the name is from the Latin word meaning safe or healthy. There are over 700 species, both annuals and perennials.  All like well drained, dry locations in sun. Since the thick leaves retain moisture they should be dried in the open air, not in a covered container.  It is good to have some of the culinary types on hand in November, as sage is a traditional element in turkey stuffing. It was thought by the Chinese to be a symbol of immortality…but this obviously doesn’t apply to turkeys. Sage was also believed to aid digestion and so is traditionally used in recipes with fatty meats such as sausage and liver.In 1633 John Gerrard wrote: “Sage is singularly good for the head and brain, it quickeneth the senses of memory, strengtheneth the sinews, restoreth health to those that have palsy and taketh away shakey trembling.” All these virtues, and wonderful flowers in the spring as well!
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