How Big Are Zinnia Flowers

based on the type. Some types are small, growing only 6 to 12 inches tall and wide, while others can reach heights of 4 feet and 1 to 2 feet.

Characteristics:

There are many different flower shapes that zinnias can take, including stars, daisies, dahlias, spiders, buttons, domes, and quill-leaf cacti. There are also singles, semi-doubles, and doubles within those shapes.

Do zinnia flowers enlarge over time?

In the hopes that it will encourage you to plant some of these hardworking, heat-loving beauties in your garden this season, I thought I’d share some of my favorite types that we grow here on the farm.

To start with, we are incredibly excited about Unicorn Mix (pictured above). While it’s still a work in progress, this unique Floret blend has been a labor of love for us, and we’re pleased to be able to share it with the world at last.

The mixture features medium-sized, usually double blooms with eye-catching lavender centers that come in a beguiling array of vibrant sherbet shades, including raspberry, orange, magenta, lemon, apricot, dusty lilac, and blush.

Golden Hour, another new release from Floret, is a stunning assortment of warm buff, honey, and soft apricot flowers that began with two single plants we found in our fields.

We’ve gathered the seeds throughout time and picked out the lightest antique melon hues. Nothing else like it is available in the market. This cultivar is called after the golden hour just before the sun sets on the horizon, which is our favorite time of day on the farm.

The zinnia family’s largest-flowered kinds, Benary’s Giant Series plants frequently grow to a height of 4 to 5 feet (1.2 to 1.5 meters), and they frequently feature a high proportion of enormous double flowers. They have a total of 12 different hues and are renowned for having sturdy stems and exceptional disease resistance.

The ‘Giant Salmon Rose’ variety, shown above, is my all-time favorite since its warm peachy color is so adaptable and gets softer with age. Both pastel and vivid hues go nicely with it.

The “Desert Sunset Mix” (seen above) is another color I adore. It has my three favorite warm-toned Benary’s Giant hues: coral, orange, and carmine. When coupled with acid green or deep crimson blooms and foliage, they make a striking statement.

A longtime customer favorite, “Benary’s Giant Coral” is a glistening tropical coral-salmon variation. ‘Benary’s Giant Carmine’ (shown right) features raspberry-pink blooms that have a three-dimensional aspect as they age due to the outer tips of the petals fading.

The smallest tinge of lavender is bordered around the petal tips of “Benary’s Giant Orange,” giving them an iridescent appearance. ‘Benary’s Giant Lime’ has unusual Granny Smith apple-green flowers that are densely covered in petals.

‘Benary’s Giant Deep Red’ (shown left) has a deep ruby-red color with just a tinge of purple on the back of the petals, giving them a dazzling, iridescent appearance. ‘Benary’s Giant Bright Pink’s’ (right) cotton candy-pink blossoms are as delicious as they come.

The dramatic, deep wine shade “Benary’s Giant Wine” (seen on the left) is a customer favorite. The outer petals of “Benary’s Giant Lilac” (shown on the right) begin as a vibrant lilac and gradually turn a chilly, pale lavender, creating a haunting image.

The most prolific and floriferous zinnias I’ve ever grown are the Oklahoma Series. Oklahoma Salmon, Pink, Carmine, Ivory, White, Yellow, and Scarlet are among the series’ seven colors.

‘Oklahoma Salmon’ (seen above) features small, double blooms that go beautifully with everything. They are a warm blend of salmon and peach. Everyone adores this find!

To the satisfaction of innumerable growers and designers, Frank Morton from Wild Garden Seed in the Pacific Northwest brought back “Oklahoma Ivory,” which had previously been withdrawn. This cultivar, cherished for its adaptable creamy ivory color and lovely double flowers, is one that we are thrilled to offer.

The Queen Series of zinnias has the most distinctive collection of uncommon colors, such as lime green, smoky apricot, dusty rose, and limey blush.

A welcome advance to the zinnia family, the Queen Series cultivates vigorous plants with strong stems and hardy flowers in addition to their distinctive colors.

The ‘Queen Lime Blush’ flower, which is usually double and semidouble and is shown above, is unlike anything else we’ve ever seen. Everyone who sees them falls in love at first sight. It must be grown!

“Queen Lime Orange”: The most exquisite assortment of iridescent raspberry, apricot, and smoky peach with a dark cranberry center can be found in the Queen Series. When paired with lush greenery and blooms, this color’s versatility looks amazing.

Types with scabiosa flowers: I cultivated scabiosa-flowered zinnias for the first time in 2014, and they rapidly rose to the top of my list of seasonal favorites. The lacy double blossoms resemble double-flowered echinacea or little gerbera daisies.

They feature lovely long stems, strong disease resistance, and a gorgeous variety of hues.

The improved variety “Candy Mix” (seen above) features a higher proportion of double blossoms in a cozy, upbeat combination of scarlet, raspberry, pink, salmon, tangerine, gold, and cream.

It’s important to note that many growers in warmer areas have observed that they don’t receive the same high proportion of doubles with scabiosa kinds (doubles shown on the right) that we experience in the Pacific Northwest.

I believe that if plants experience any stress, such as not getting enough water or being exposed to too-high temperatures, they will begin to produce single blooms after doing a lot of research and exchanging letters with the breeders (pictured left).

Although the single blooms are attractive and distinctive, many people have been let down by this fact.

The frilly double blooms of “Zinderella Peach” (seen above) have a dramatic dark center and are a warm blend of salmon, peach, and cream. This may be my favorite zinnia out of all the ones we cultivate. The exquisite blend of blush and delicate lavender known as “Zinderella Lilac” (seen above) is highlighted with an eye-catching black center. Floral designers adore it since it’s perfect for wedding work!

Bicolor novelties: Everyone who sees these interesting bicolor novelties is bound to be intrigued.

Since we’ve been cultivating “Macarenia” for years, we’ve discovered that people either adore it or despise it. For a whimsical twist, each glistening crimson flower has a gold tip. This diligent plant, which took home the Fleuroselect Novelty Award in 2012, does well in the heat and is quite simple to grow.

With a fresh spin on zinnias, “Mazurkia” is a Fleuroselect Winner with good cause. A lively, campy double blossom with lipstick-pink centers and gentle blush tips is produced by the medium-sized plant.

Types with tiny flowers: The traditional “Lilliput Mix” (seen above) belongs in every cutting garden. The simple-to-grow, heat-loving plants bear an abundant crop of pleasant blooms in hues of rose, carmine, orange, coral, white, yellow, and violet on long, sturdy stems. They are perfect for floral arrangements because of their small flower size.

I adore “Lilliput Salmon” in particular (pictured growing above). All summer long, this delightful bloomer produces a profusion of small, completely double, salmon dome-shaped flowers.

The Sunbow Series has been around for a very long time and is available from Johnny’s Selected Seeds. It features tiny 1- to 2-inch (2.5 to 5 cm) double blooms that are supported by long, robust stems. It is available in a bright assortment of colors, including white, red, orange, pink, scarlet, and golden yellow. Plants are perfect for flower arrangements since they have long, wiry stalks.

Cactus-flowered varieties: These amusing novelty flowers come in a variety of hues, including orange, pink, red, yellow, peach, and white, and have the coolest twisted, shaggy petals.

My favorite variety is “Seora” (seen above), which has warm salmon-apricot quilled blossoms and yields an abundance of big flowers with sturdy stems. It must be grown!

Mexican zinnias: Although the plants themselves are small, from July to early fall, they produce an abundance of stems for cutting. They are more like a bedding plant than a cropping variety due to their small stature, but I believe they belong in every cutting garden.

The charming gold, cranberry, orange, and cream flowers in the “Persian Carpet Mix” (seen above) work well with these colors.

A wide variety of small bicolor flowers in the vivid, eye-catching “Aztec Sunset” combination come in tones of buttercream, gold, crimson, rust, and merlot. These dependable bloomers are a wonderful complement to the flower border’s front and the cutting garden.

Your experiences with this lovely set of plants would be greatly appreciated. Do you cultivate zinnias or do you have any plans to include them in your garden this year? If so, what kinds do you prefer or what new items are you adding to your wishlist?

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How big can regular zinnias grow?

One of the most rewarding summer flowers is the common zinnia (Zinnia elegans), which blooms prolifically for a long period of time from early summer till frost. Thanks to their enormous range of plant heights, flower sizes, styles, and colors—a diversity to fit any need—these butterflies’ favorites are also very well-liked by gardeners.

They have small variants that are ideal for the front of the border and giants that look best in the middle or back of the border. They typically grow 1-3 ft tall (30-90 cm) on upright, branching stems.
Flowers can be single, with only one row of petals covering the center, semi-double, with multiple rows of petals covering the center, fully double, with multiple rows of petals covering the center, or cactus-like, with long petals that are spiky in appearance due to the edge rolling back along part of their length. A circle of tiny golden stars surrounds the core disk of the flower as it develops.
Zinnias are annuals that are incredibly simple to grow. They enjoy full sun and a humusy, consistently moist, well-draining soil. They enjoy the summer heat and are tolerant to drought.
Excellent plants for beds, borders, cutting gardens, containers, and cottage gardens. They also excel as freshly cut flowers!
To keep zinnias disease-free and prevent powdery mildew, don’t crowd them. It’s critical to have good airflow.
If you want earlier spring blossoms, you can start indoor seedlings 4–6 weeks before the final day of frost on some of the simplest plants to grow from seed.
Young plants should be pinched to encourage a bushy, compact structure. To encourage fresh blooms and preserve a tidy appearance, deadhead spent flowers.

Do zinnias come in different sizes?

In the wild, there are around 20 different zinnia species. Few of these species are regularly grown in gardens, but hundreds of various cultivars and hybrids have been created from the few species that are.

Therefore, you can pretty much find a zinnia in whatever color scheme you like, in a variety of patterns, forms, and sizes, from a few inches to several feet tall.

Are you interested in learning more about growing these amazing annuals? See our comprehensive zinnia growing guide.

The reason zinnia blooms are little.

Zinnias can be grown from seed that is sown early indoors and moved outside after a frost, or from potted plants or seeds sown directly in the ground after a frost.

Indoor Seed Sowing

Utilizing a seed starting kit, sow indoors 5-7 weeks before to the date of outdoor planting in the spring.
plant seeds A quarter-inch deep in seed starting solution
At 70–75 degrees Fahrenheit, keep the soil moist.
The seedlings appear in 7–10 days.
As soon as seedlings appear, give them lots of light on a sunny windowsill or grow them 3–4 inches beneath 16–hour-per-day fluorescent plant lights that are off for eight hours at night. As the plants get taller, turn up the lights. Because they will become too hot, incandescent bulbs will not function in this process. Do not leave lights on continuously for 24 hours; most plants need a time of darkness to flourish.
when they have two sets of leaves, thin to one seedling per cell.
Seedlings don’t require a lot of fertilizer; feed them when they are 3–4 weeks old with a starter solution (half the strength of an indoor plant food), as directed by the manufacturer.
After the first frost, transplant hardened-off seedlings into the garden.
Seedling plants must be “hardened off” before being planted in the garden. By relocating young plants to a protected area outside for a week, you can acclimate them to outside circumstances. At first, be sure to shield them from the wind and the light. If frost is expected at night, cover or bring pots inside; then, in the morning, reintroduce them to the outdoors. The plant’s cell structure is toughened during the hardening off process, which also lessens transplant shock and scorching.

Direct Sowing in the Garden

After any threat of frost has passed, direct-sow seeds in ordinary soil in full sunlight.
The top 6 to 8 inches of soil should be cleared of weeds, and then it should be leveled and smoothed.
The majority of plants do well in soils that have had organic matter added. Compost is a beautiful organic material that can be applied to your planting area whenever you like. It has the perfect pH level and nutrient balance. If compost is not available, topdress the soil with 1-2 inches of organic mulch after planting; this mulch will break down into compost over time. Following the growth season, a soil test will reveal what soil amendments are required.
equally space the seeds 12 inches apart, then top with 1/4 inch of fine dirt.
Lightly press the soil with your hand, water, and maintain a uniform moisture level.
In 7–10 days, seedlings will start to show.
When seedlings are 1-2 inches tall and 8–24 inches apart, depending on the variety, thin them.

Gardening: Planting

Choose an area with good, rich, moist organic soil that receives direct sun.
Turn the soil under to a depth of 8 inches to prepare the bed. To get rid of grass and stone clumps, level the area using a rake.
For each plant, create a hole that is sufficiently large to hold the root ball.
Set the top of the root ball so that it is level with the dirt around it. Up to the top of the root ball, cover with soil. Your hand should firmly push the earth down, leaving a small depression to hold water around the plant.
Water deeply until a puddle appears in the saucer you have made. As a result, there is strong root-to-soil contact and the plants become established.
Use the plant tag to indicate its location.

How to Grow

Keep weeds under control while the plants are growing. Weeds compete with plants for water, space, and nutrients, therefore keep them in check by frequently cultivating or by using a mulch to stop the germination of their seeds.
Mulches also support stable soil temperatures and moisture retention. Shredded leaves used as an organic mulch for annual plants give the bed a more natural appearance and, as they decompose over time, enrich the soil. Mulches should never be placed on a plant’s stems to avoid potential decay.
During the growing season, make sure plants are well-watered, especially during dry spells. The growing season requires roughly 1 inch of rain every week for plants. To determine whether you need to add water, use a rain gauge. The optimum irrigation method is a drip or trickling system that releases water at low pressure directly into the soil. To reduce disease issues, water early in the day if you want to use overhead sprinklers so the foliage has time to dry before dusk. Maintain a moist but not saturated soil.
Some protection from strong winds and intense sunlight may be required until plants grow established. Additionally essential is good airflow.
A mild fertilizer can be administered after new growth starts to show. To prevent burn damage, keep granular fertilizers away from the plant’s top and leaves. Use moderate amounts of a slow-release fertilizer because greater amounts could promote root rots.
Unless you are growing them purely for cut flowers and want long stems, pinch young plants to induce branching.
To prolong plant flowering till fall, remove spent flower heads. Cutting zinnias fosters the emergence of fresh blooms and they make excellent cut flowers.
Observe for illnesses and pests. For advice on pest management measures that are suitable for your area, contact your cooperative extension service.
In order to prevent disease problems the next year, remove plants that have been killed by frost in the fall.

Growing Tips

Zinnias can be arranged in tiny clusters alongside perennials or in mixed plantings with other summer annuals. They thrive in cottage and kid-friendly gardens, and cutting gardens frequently cultivate them.
For containers, shorter zinnia cultivars are best. Be careful not to crowd them because the plants may grow taller and the blossoms may be much less than they should be. Never use garden soil instead of commercial potting mix, and make sure the containers have enough drainage. Plants growing in containers will need more water and fertilizer; keep an eye out for wilting or nutrient deficiencies.
For cut flowers, trim stems before the blossom opens.
Hummingbirds, butterflies, and beneficial insects are drawn to zinnias.

Common Disease Problems

Alternaria Leaf Spot: On the upper surface of the leaves and along the midrib, small, rounded, reddish-brown dots with white to gray centers appear. The lesions could surround the stems and result in wilt. Warm, rainy, or extremely humid conditions makes this sickness worse. Avoid getting water on the foliage, advises Burpee. Avoid working with moist plants and remove any contaminated plant components. Make sure there is lots of air movement. For advice on fungicides, get in touch with local cooperative extension service.

Aster Yellows: Plants grow excessively, become stunted, and develop witch’s brooms. Their petals also turn green and become malformed. Leafhoppers propagate this virus-like ailment. Burpee advises removing and destroying diseased plants. Eliminate leafhoppers. Eliminate any weeds in the area that the illness can also live on.

Bacterial Leaf Spot: The earliest symptoms are small, translucent spots with a wide, yellowish edge. Over time, these spots gradually get larger and develop an angular or irregularly circular shape with a reddish center. It flourishes in cooler climates. Flower heads may be impacted by the disease and become deformed. Burpee advises getting rid of diseased plants. Crop rotation should involve diverse family plants. Avoid watering from above. When plants are damp, stay away from them.

Botrytis: This fungus turns flowers, leaves, stalks, and buds a greyish color. It thrives in chilly, rainy weather. Burpee advises removing the damaged plant sections, avoiding watering at night, and not watering directly on the plant. Make sure plants receive adequate airflow. For advice on fungicides, get in touch with local cooperative extension service.

When the weather is humid, a fungus illness known as powdery mildew develops on the tops of the leaves. The surface of the leaves seems to be white or grayish, and they may curl. Burpee advises giving the plants adequate air circulation through optimum spacing and pruning in order to prevent powdery mildew. For advice on fungicides, get in touch with local cooperative extension service.

Common Pest and Cultural Problems

Aphids: These disease-transmitting sucking insects that feed on the undersides of leaves might be green, red, black, or peach in appearance. On the foliage, they deposit a sticky substance that draws ants. Burpee advises attracting or introducing aphid-eating predators like lady beetles and wasps into your garden. You can also use an insecticidal soap or a powerful spray to wash them away.

Leafhoppers: These insects damage leaves and retard growth. Moreover, they spread sickness. Burpee advises clearing up plant detritus. Use soaps with insecticides. For additional advice on insecticides, contact local cooperative extension service.

Burpee advises hand-picking Japanese beetles in the morning into a pail of soapy water.

Compared to what is typical for the variety, plants are shorter, and blossoms are much smaller: Overcrowding can cause zinnias to become stunted and produce smaller flowers. Always adhere to the spacing guidelines for each variety.

Spider mites: These minuscule insects, which resemble spiders, are approximately the size of a peppercorn. They can be yellow, brown, black, red, or black. They ingest plant liquids, sucking out chlorophyll and injecting poisons that leave the foliage with white spots. On the plant, webbing is frequently seen. They cause the leaf to stipple, dry, and become yellow. They proliferate swiftly and do best in dry environments. Burpee’s Advice Every other day, a strong spray can help control spider mites. Try using insecticidal soap or hot pepper wax. For advice on miticides, contact your local Cooperative Extension Service.