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Advantages of Having Flowers in Your Vegetable Garden

We vegetable gardeners are pretty serious about getting our annual work rewarded with bountiful harvests. So serious in fact, that some of us hate to waste space for anything that won’t contribute to growing nutritious food for the dinner table. That’s probably why my desire to have flowers throughout the garden has met with some resistance at our little homestead. But that’s also why I have gathered some pretty convincing arguments that flowers contribute to having healthy plants and nutritious crops. If you or your gardening partner need some persuasion to include flowers with your vegetable plants, then please let me try to convince you.

The first resistance we may hear is that flowers will result in less space for vegetables. To see why this doesn’t have to be true, we may have to revise our notion of what our gardens should look like. There is wisdom in nature crowding both abundance and variety in “unkept” areas. When we do the same, we can end up with both bounty and beauty. 

At our place, even the four-by-ten foot raised beds do well with marigolds bordering tomato plants. The cabbage and broccoli look great with nasturtiums draped over the edge of their bed. Imagine a larger garden that has roomy paths and a periphery rimmed with cut grass. Let’s revise that garden in our imagination to be surrounded with flowers rather than grass and the walking paths narrowed with borders of flowers. The wider paths may have allowed machinery into the garden, but that only compressed the soil and made it less welcoming for plants. Our revised garden will need less weeding and grass cutting as well as having improved insect-control, and more bountiful harvests. Let’s explore why the latter is true.

We can agree that it’s an asset to have beneficial insects and birds attracted to our vegetable gardens. These beneficials not only provide needed pollination, but they help reduce the number of harmful insects. The smell and color of some flowers are more likely than vegetables to attract helpful insects. Flowers then offer these beneficials the essentials of nectar and pollen.


The flowers that do this best include marigolds, nasturtiums, zinnias, cone flowers, calendula, sweet alyssum, borage, yarrow, and cosmos.

                          Nasturtiums

Flowers may add a bit of chaos to an orderly garden, but having cosmos drooping over cabbage, or zinnias sprawling across a path, also increases the number of beneficials in other ways. In general, beneficials prefer some shade and ground cover. Don’t cringe when I say that the good guys include not only insects, but also snakes, toads, spiders and birds. Over-all, it’s the bad guys, or crop-eating insects, that prefer clear ground and full sun. Additionally, many of the crop-eating insects take short flights from one plant to another until they’ve pretty much sampled everything. We can limit their range by growing an occasional higher row of sunflowers or hollyhocks between our vegetables. 


More than just attracting and supporting beneficials, some flowers directly reduce the number of harmful insects with their scent and natural compounds. Nasturtiums will reduce the number of aphids around tomato plants. Marigolds reduce the number of white flies while their roots kill nematodes. Borage, when planted among tomatoes, squash, and strawberries, will limit the number of pests. Chrysanthemums actually contain pyrethrum which deter pests like spider mites and Japanese beetles. Lavender and geraniums are also known to discourage harmful pests. 

                        Chrysanthemums

Here’s more “logic” that’s definitely appeals to me; flowers can reduce the number of weeds. Some flowers have roots that release chemicals that suppress the growth of bindweed and ground ivy. Many others serve as a living mulch. These flowers include nasturtiums, creeping thyme, yarrow, sweet woodruff, and creeping phlox. 


I believe we should be prepared for one other argument; some people see flowers as an additional and unnecessary expense. To this I would respond that flowers don’t need to cost much at all. Purple cone flowers (Echinacea) and bee-balm (Bergamot) are perennials that stand as sentinels at the end of our garden rows. Most came as divisions from the first plants which I began from seed. Poppies and chamomile reseed themselves each year. Other annuals like zinnias and marigolds come from seeds that I save. 

Be

                     Bergamot

Some gardeners may still need convincing, so the fact that flowers increase the health of the soil and therefore the nutritional quality of our harvest, might be enough to convince most skeptics to plant flowers. Phacelia and clovers act as “green manure” and help store nitrogen in the soil. Sunflowers and borage have deep roots that help break up and aerate soil. These roots also pull up deep minerals in the soil so that our vegetable plants have access to these nutrients.


As I mentioned, when we look at unkept meadows or woodlands, we see that nature always creates great diversity in her plantings. Having more variety of plants in the garden will also result in more diversity of life in the soil. This creates a healthy soil-food web that is essential if we want our vegetables to be high in nutrition and flavor. When we see flowers snuggled up to vegetable plants in a garden, we know there will be more nutrition in that garden’s crops. The proof will be in the improved flavor in our produce because nature wisely combines higher nutrition with more flavor.

                            Phacelia


That logic may sound a bit complex, so it may not sell as well as this one; many flowers are edible! While gathering makings for a salad with the lettuce that has grown in the shade of taller flowers, we can also gather edible flowers to create salads that are both beautiful and nutritious. Honeysuckle, nasturtiums, violets, calendulas lavender, borage, hibiscus, and pansies are all edible. 


The beauty of our salads can be extended with beautiful indoor flower bouquets throughout the growing season. In fact, this enjoyment begins in the garden when including cut zinnias and coneflowers in our basket along with tomatoes and peppers. Bringing the garden’s beauty indoors is a big bonus for me.


Violets

                             Violets

Speaking of beauty, having a beautiful garden greet us when we set off to weed or harvest makes gardening more pleasant. This pleasure isn’t only for the flowers’ beauty, but for the other creatures that these flowers attract. I remember picking beans while watching two hummingbirds follow Black swallowtail butterflies from one zinnia to the next. I was delighted when those two then came and hovered before me, as if I was to negotiate their differences (and hummingbirds always have differences). And when a hummingbird moth hovered on a Mexican sunflower, I was open-mouth stunned for never having seen one before.

                   Hummingbird moth

Even with no new discoveries, when our garden is full of a variety of vegetables, flowers and animal life, it becomes what feels like a sacred space to me. I may walk by a sidewalk’s flower bed, but I spend time actually observing while working in the garden. I gradually come to focus on the orchestra of busy insects and bird songs, the feel of the breeze, and the blend of spicy and sweet smells. It becomes a meditation to be totally in the moment without my mind buzzing to past memories or future concerns. Being in a beautiful garden feels good for my body and mind. So if flowers and all the life they attract entice me to spend more time in the garden, then both the garden and I benefit.


There will still be some “serious” gardeners who won’t buy my logic and who will frown at all the color and chaos in our vegetable gardens. We can smile in response because we know that following nature’s example of combining diversity and beauty will result in better health for our vegetables, the beneficials, the soil, and us. So let’s plant lots of flowers in our vegetable gardens!


There will still be some “serious” gardeners who won’t buy my logic and who will frown at all the color and chaos in our vegetable gardens. We can smile in response because we know that following nature’s example of combining diversity and beauty will result in better health for our vegetables, the beneficials, the soil, and us. So let’s plant lots of flowers in our vegetable gardens!

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A beautiful and productive garden may not follow all the rules, but we do our best will be rewarded
By Mary Lou Shaw July 27, 2024
I like reading about gardening tips that tell us the correct way to garden. However, when reviewing these suggestions, I also witness my internal dialogue arguing that following one rule often conflicts with a different rule or suggestion. I admit that I have this same struggle in other areas: I want to keep the bird baths filled with water but don’t want to allow mosquitoes to propagate, or I want to dead-head flowers to encourage more blooms, but also want them to go to seed for the birds. Life is complicated! As for the gardening rules, I admit that different years bring different weather, while at the same time we gardeners are growing different produce with different soils and different growing conditions. But when one rule doesn’t “fit” with another, I often find myself saying “good enough.” Indeed, I am not the perfect gardener. I’ve been outlining various gardening rules these past weeks from Edward Smith’s book, “The Vegetable Gardener’s Bible.” I thought reviewing his suggestions might help me see how I could improve. But even though I agree that these rules make sense, I can’t say that I’m doing each of them perfectly. Because I found this review helpful, I want to share his ten main suggestions below. But just to be ornery, I’ll then explain why I am having trouble reaching this level of perfection. 1: Wide rows should be used for permanent planting sites. Rows only got narrower than walking paths when people attempted to bring large equipment into the garden. Having wide planting spaces allows for “companion planting” which holds down weeds and therefore helps eliminate the need for rototilling. To judge the width of the beds, make sure you can reach to their center. 2: Deep beds are necessary for good root growth. A rototiller only reaches the depth of about nine inches, but plants’ roots can benefit from much deeper soil. When a new garden bed is being prepared, this may mean converting grass to topsoil by first rototilling and then loosening the deeper soil with a garden fork or broad fork. Not stepping on these beds after they are prepped means there is no need to go back again with a rototiller that would only disturb the soil’s many fungi, insects and microscopic creatures necessary to nurture our plants. The alternative to originally digging deeper is to annually pile on good topsoil or compost on each wide bed. We used the “pile on” method with our large Ohio garden when we had a constant supply of animal manure and bedding for the compost pile. Now we do it by having deep, raised beds where we are still adding topsoil. 3: Keep all paths narrow and mulched . Narrow paths give more room for garden plants. Having these paths mulched with organic material prevents the soil underneath from getting compressed so that our plants’ roots will then have even more room to expand. 4: Keep “family members” together . This rule makes sense because plants in the same family have similar nutritional needs and also contribute similar minerals to the soil. Additionally, they have similar problems with disease and insects, so keeping families together makes it easier to rotate them to a different area the following year as will be suggested below. I admit that I can’t recite every plant’s family. A plant’s family cannot be found in its Latin name which only has the plant’s genus and species. But “families” are determined by their flowers and reproductive parts. It’s why carrots, celery, cilantro, fennel, and parsley all get put together in the “Apiaceae” family, while eggplants, bell peppers, potatoes, and tomatoes make up the nightshade or “Solanaceae” family. I’m not always sure which plants belong to which family, so I just try to follow the four year rotation schedule that I mentioned in the Summer, 2024, Farming Magazine. 5: Plants need at least six hours of sun a day . This rule mainly comes into play when we’re first deciding where to establish our gardens. Besides choosing a sunny area, it’s wise to choose one that has good ventilation and good soil. We also have to remember to allow at least six hours of sun for shorter plants growing by larger ones. 6: Interplant different species . I’m enthused about different species growing together because less bare soil certainly helps to control weeds. Different species can also offer physical support to each other as well as needed shade. Interplanting also helps to retain the soil’s moisture and provides mulch. The “Three Sisters,” consisting of corn, climbing beans and the squash family is often given as an example of interplanting different species. 7: Successive planting is probably something most of us do automatically. For example, after garlic is harvested in late June or by mid-July, spinach or Chinese cabbage can then be planted for an autumn harvest. When I’m aiming to assist the soil’s quality and aren’t looking for additional harvests, I can throw in buckwheat seeds or left-over pea or bean seeds. These plants add various minerals to the soil that nurture both plants and microbes. With successive planting, it’s suggested that we choose plants from a different family than what was planted in the springtime. This helps to avoid disease that may have built up from the first crop. 8 : Rotate crops annually . To do this, I depend on my three-ring notebook that has sketches of where each crop was planted the previous year. Rotation helps avoid diseases that may have accumulated from the previous year’s plants. For example, rotating vine crops away from where they attracted vine borers the previous year means that when the vine borers emerge from the soil in the springtime, the vines won’t be available for them to consume. Rotating crops also makes sense because each family of plants have different nutritional needs. For example, the vine crops, along with tomatoes and peppers, need more phosphorus that was deposited the previous year by the root crops. The “leaf crops” like broccoli require more nitrogen that the “fruiting crops” like vines or tomatoes deposited the previous year. 9: Give each plant enough space . Giving space seems like a wise balance to interplanting various species. It is possible to have three or four different varieties growing in the same row or bed as long as their leaves can get enough sunshine and air movement. Fortunately, roots can densely intertwine without any negative effect as long as they have space to grow deep and wide. 10. Meet the basic needs of each plant . The trick here is of course, that different plants have different needs. We can agree that plants need air, sunlight and room to grow roots. They benefit from soil and air temperatures within the range they’ll thrive. Their need for water is usually averaged to be about an inch a week. Finally, different plant families have different nutritional needs which an annual rotation helps to supply. These ten rules are all pretty basic, so why do I fall short every summer? For starters, I’m already cheating during the winter when sketching the following summer’s garden. What am I to do with the perennials like rhubarb and asparagus if not to hop over them? And if the tall plants, like sweet corn and climbing beans, need the northeast side of the garden so they won’t shade the shorter plants, then how are they to rotate to a different space in a single garden? But that’s just the beginning of my difficulties. Not long into a growing season, successive planting comes into play after the lettuce, peas and then garlic are harvested. Here we’re advised to put plants from different families into the space to help avoid disease, but having two families occupy the same space in one growing season makes the next year rotation more difficult. Okay—I admit to just doing my best with what needs to be planted and then going back to the same four-season rotation the following year. It’s what I call “good enough.” The good enough rule applies once again when harvesting the climbing peas in the springtime and then needing that fence for climbers like cucumbers that belong to a different family. When I want to cheat on this, I rationalize that the “three sisters” concept allows the vines to climb on corn which combines different families. I imagine that the corn, vines and bean combination could be rotated to a new spot each year without much damage being done. That’s probably good enough! However, I’m not done complaining just yet. Providing plants with about an inch a water each week shouldn’t be tough. Just check the rain gauge and make up the difference, right? But our heavy clay soil doesn’t soak up water well, although no water runs off the raised beds filled with compost. Yes, the plants in the clay soil do well with smaller amounts of water applied more frequently. The next hurdle is deciding the best time of day to water. We’re told we shouldn’t water in the morning during the hot summertime because much of the water will evaporate. However, if we water in the evening, the wet leaves may be more susceptible to fungal diseases during the night. Seems to me we’ll be watering during suppertime! In truth, I’m smiling when confessing my failures in reaching perfection, because I’ve never perfected any area of my life! It didn’t happen in school or in the kitchen, so it’s not going to happen when attempting to work with the complexities of nature. But nature can also be very forgiving of my efforts as she allows our dinner table, canning jars and root cellar to be filled with beautiful produce. I’ll try to follow the “rules” listed here, but perhaps shift my focus to gratitude for each year’s harvest. Unfortunately, that’ll probably free my mind to fret about filling bird baths and dead-heading flowers. Life is just full of decisions!
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