
How to Grow Zinnias
Botanical Name | Zinnia elegans |
Soil pH | 5.5-7.5 |
Bloom Time | Late spring through first frost |
Flower Color | Pink, purple, yellow, orange, lavender, ... |
Hardiness Zones | Annuals in 2-8, perennial in 9-11 (USDA) |
How do you keep Zinnias blooming?
· With that being said, the amount of time that someone can spend keeping the blooms of a zinnia alive is going to be somewhere between 60 days and about five months. Typically, zinnias will begin to bloom in the late spring when you plant them in the early spring or even in the very late winter.
Do Zinnias come back year after year?
How often do zinnias bloom? One of the easiest annuals to grow, zinnia flowers bring an explosion of color wherever they go. The show lasts from late spring until the first frost in fall. Butterflies and hummingbirds are attracted to the cheery flowers that bloom in nearly every bright color imaginable. Click to see full answer.
How long after planting out will my Zinnia Flower?
· In addition, zinnias bloom quite early if temperatures are high and maintain their inflorescences for about 60 days. Planting zinnias is an excellent choice if you want to give some color to your yard or flower garden without too much effort. They are also very beautiful displayed in vases and floral arrangements.
When to start Zinnia seeds indoors?
You’ll see zinnia seedlings in only 4 to 7 days for most varieties, though it will be anywhere from several weeks to a couple months before blooms appear (depending on planting site and climate). When seedlings reach three inches tall, thin them so that they’re 6 to 18 inches apart to maximize air circulation.
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11 rows · · Zinnia elegans: Common Name: Zinnea Plant Type: Annual shrubs: Mature Size 1-4 ft. tall, 12-18 in. ...

Will zinnias bloom more than once?
Zinnias are a “cut and come again” flower, so when you cut the plant “hard,” it responds by sending out even more long, strong stems all season long.
How do I keep zinnias blooming all summer?
They should be planted after the threat of frost has passed, and they require full sun to thrive. They prefer moist, well-draining soil that is rich in organic matter with a pH from 5.5 to 7.5. Keep the soil moderately moist and deadhead the flowers and your zinnias should reward you with colorful flowers.
How long do zinnias keep blooming?
One of the easiest annuals to grow, zinnia flowers bring an explosion of color wherever they go. The show lasts from late spring until the first frost in fall. Butterflies and hummingbirds are attracted to the cheery flowers that bloom in nearly every bright color imaginable.
Do zinnias rebloom after deadheading?
After zinnias flower, cut off the old flowers (a process called “deadheading”) to encourage more flowers to form. Zinnias are annuals and will die with the first hard frost of fall. If you want them to reseed, let the last flowers of the season mature fully and scatter their seeds.
Will zinnias multiply?
Zinnias are cut-and-come-again plants, so the more you cut from them, the more they'll produce for you.
Do zinnias reseed themselves?
Will Zinnias Reseed Themselves? The short answer here is yes. If zinnias are allowed to flower and set seed and the seeds drop to the soil, then there is a good chance that the seeds will germinate and grow the following spring.
Do zinnias do well in pots?
Zinnias are colorful additions to any flower garden – they're great for cutting, they are easy to grow and start from seed – so they make a great choice for container gardening.
How often do zinnias need to be watered?
Watering: Zinnias need moist soil to grow their best. This is especially true of young plants. Water deeply a few times a week so the soil stays moist 6 to 8 inches deep. Don't overwater because zinnias can also succumb to rot diseases especially on wet, clay soils.
How do you collect and save zinnia seeds?
0:003:16Growing Zinnias -How to harvest their seeds from your Garden - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd you pluck out some of the dried flower petals you'll see that there are what looks almost likeMoreAnd you pluck out some of the dried flower petals you'll see that there are what looks almost like an arrowhead at the end those arrowheads are the seeds that will give you full of zinnia plants.
Should you prune zinnias?
Zinnias thrive on pruning and must be pruned regularly in order to promote growth. Zinnia pruning isn't difficult, but it's important to know exactly how to do so or else you risk damaging the plant. Most importantly, refrain from cutting back big portions of the plant.
Where do you pinch zinnias?
The secret to getting the longest stems from your zinnias is pinching them when they are young. Here's how it's done: When plants are between 8 to 12 inches (20 to 30 cm) tall, take sharp pruners and snip the top 3 to 4 inches (8 to 10 cm) off the plant, just above a set of leaves.
Do zinnias like coffee grounds?
5 Tea or coffee grounds-by adding these to your soil it with acidify the soil or acid loving plants(you can also use aluminum sulfate) Azaleas, Rhododendrons and Blueberries, Hydrangeas-will change the color from pink to Blue. If you add 1/4″ of grounds once a month you will keep the ph of the soil on the acidic side.
Should you prune zinnias?
Zinnias thrive on pruning and must be pruned regularly in order to promote growth. Zinnia pruning isn't difficult, but it's important to know exactly how to do so or else you risk damaging the plant. Most importantly, refrain from cutting back big portions of the plant.
How do you pinch out zinnias?
The secret to getting the longest stems from your zinnias is pinching them when they are young. Here's how it's done: When plants are between 8 to 12 inches (20 to 30 cm) tall, take sharp pruners and snip the top 3 to 4 inches (8 to 10 cm) off the plant, just above a set of leaves.
When should you cut zinnias?
All you need to do is wait until they are about 10-12 inches tall; you want to make sure they have a couple sets of leaves. Once they reach this point you will cut the tops off of the plants. I cut down about 4 inches or the top two sets of leaves with a sharp pair of pruners.
Should you pinch zinnias?
Zinnias and cosmos are especially generous bloomers if pinched. Pinch early to promote branching, then “pinch” by cutting flowers. The more frequently you pick bouquets, the more flowers you will have for your tables and your friends.
How long do zinnias bloom?
In addition, zinnias bloom quite early if temperatures are high and maintain their inflorescences for about 60 days.
What is the color of a zinnia?
This species produces large blooms, with multiple rows of petals, and with bright colors ranging from white to orange, red, pink, yellow, and purple. Purple Zinnia Elegans.
What is powdery mildew on zinnias?
Powdery mildew is a fungal disease distinguished by the occurrence of a grayish-white powder (similar to wood ash) on the foliage of the plants. Later, it can also extend to stems and flowers. Zinnia blight (Alternaria blight) is a common disease of zinnias and is caused by a fungus called Alternaria zinniae.
What diseases do zinnias have?
The most common diseases that these plants develop, according to the Missouri Botanical Garden, are powdery mildew and Alternaria blight (also known as zinnia blight).
Why do zinnias have fungal diseases?
Most fungal diseases of zinnias are usually caused by too much moisture or because they do not have enough sun .
What happens if zinnias are soggy?
If it’s soggy permanently, the roots of your zinnias can quickly rot and the plants will eventually die.
What are the symptoms of zinnia blight?
Symptoms of zinnia blight include red-brown spots that occur on the upper side of leaves with grayish-white spores that develop in the middle. Eventually, the foliage will turn brown and dry out. In the advanced stages of the disease, the stems and flowers can also be affected.
How long does it take for zinnias to bloom?
You’ll see zinnia seedlings in only 4 to 7 days for most varieties, though it will be anywhere from several weeks to a couple months before blooms appear (depending on planting site and climate). When seedlings reach three inches tall, thin them so that they’re 6 to 18 inches apart to maximize air circulation.
How big do zinnias get?
Get a full-size flower on a compact plant with cultivars of the Dreamland Series . Dwarf and compact, these zinnias have fully double flowerheads, up to 4 inches across in a wide color range; stems are 8–12 inches tall.
How many types of zinnias are there?
There are three main kinds of zinnia flowers: single, semidouble, or double. The distinction between these forms comes from the number of rows of petals and whether or not the center of the flower is visible: Single-flowered zinnias have a single row of petals and a visible center. Double-flowered zinnias have numerous rows ...
What is the easiest flower to grow?
Zinnias are one of the easiest flowers to grow, as they grow quickly and bloom heavily. Zinnia flowers can create a massive burst of color in your garden, so consider trying them this year!
How big do tulips get?
Their petals are 1-¼ inch across and stems grow up to 6 inches long. The State Fair Series are one of the biggest and tallest of them all, with large, double flowerheads that are 3 inches across. Stems grow to 30 inches tall.
What to do after zinnias flower?
After zinnias flower, cut off the old flowers (a process called “deadheading”) to encourage more flowers to form. Zinnias are annuals and will die with the first hard frost of fall. If you want them to reseed, let the last flowers of the season mature fully and scatter their seeds.
What is a semidouble flower zinnia?
Semidouble-flowered zinnias are somewhere in-between, with numerous rows of petals but visible centers.
When do zinnias bloom?
Zinnia plants can take a few weeks to become established, but once it warms up, expect them to bloom from late spring right through fall. The vibrant, tropical colors of zinnias work well in a hot border, picking up the hues of other reds and oranges. They are also nice for adding dramatic color to a container.
How tall do zinnias grow?
There are spreading and dwarf zinnias that only grow about 6 to 8-inches tall, and the classic zinnia elegans can reach 4-feet tall. Zinnia plants can take a few weeks to become established, but once it warms up, expect them to bloom from late spring right through fall.
How to keep Zinnias going in winter?
Zinnias are annuals, and the only way to keep them going through the winter is to dig them up and bring them inside .
How to propagate zinnias?
There are a couple of ways to propagate zinnias: by division, using already established plants, or with cuttings.
Can you grow zinnias from seed?
Pruning. Propagating. Growing From Seed. Overwintering. Common Diseases. Back to Top. Zinnias are a gift from hot climates but gardeners everywhere can easily grow them. They are fast-growing, warm-season annual flowers that bloom with abandon and require only minimal care.
Do Zinnias need soil?
The only real soil requirement is that it be well-draining. Zinnias roots do not like to sit in damp soil and excess moisture improves their chances of getting powdery mildew. It helps to have a soil pH in the neutral range, but it's not mandatory.
Is a zinnia an annual?
Zinnias are one of the few plants that are true annuals. Many plants labeled as annuals are actually perennials that are only hardy in the warmest hardiness zones, but zinnias will be annuals everywhere.
Zinnia Flower Types
Zinnias come in a wide variety of colors, sizes, petal shapes, and even patterns.
Zinnias: How to Plant Them
Depending on the variety, plants should be spaced 4 to 24 inches apart. (Many common varieties are planted 2 feet apart in rows and 6 inches apart within rows.) See the seed packet’s back for variety-specific instructions.
Planting Zinnias in a Pot
Zinnias are popular in bouquets because each stem usually produces only one flower at the top, making them ideal for use in floral arrangements. Pruning, on the other hand, is a great way to increase the number of these stunning blooms. Trimming these plants is easy if you start when they are 8 to 12 inches tall, as Floret Flowers explains.
Taking Care of Zinnias to Extend Their Blooming Season
More blooms can be yours if you take good care of your plant. Prune two medium-sized stems together below where they are connected to encourage the zinnia to produce more flowers. As a result, more flowers may spring up in their place.
Species to Consider
Dreamland Series cultivars produce full-sized flowers on compact plants. Zinnias with fully double flower heads, up to 4 inches across in a wide range of colors, are dwarf and compact. The stems are 8–12 inches tall.
Wisdom and Humor
Hanging baskets look great with these narrow-leaved zinnias, and they also make lovely dried flowers.
When do zinnias bloom?
Of course this will take some time, but the zinnias essentially bloom all summer long.
How long does it take for a zinnia to bloom?
It takes about three to four months from first planting the seed, to getting mature sized blooming zinnia plants.
What are the most colorful flowers?
Zinnias are the most colourful blooms in our cut flower garden. It’s hard to describe the individual blooms, as they are layered and multi toned, with varied shapes and sizes. Some blooms are domed, and some are single petalled. Some have the most glorious muted shades, and others are so vibrant that they look like candy. Learn how to grow zinnias, and experience this most wonderful sweet flower in your own cutting garden.
What would happen if we didn't plant zinnias?
If we did not do this, the zinnias would not have had time to really come into their own and grow large and beautiful.
What happens if you harvest immature blooms?
If you harvest immature blooms, they are at risk for breaking and bending at the neck.
What does it feel like to work with zinnias?
When I am working with zinnias, I feel like I am creating art. It’s hard to explain, but the colour palettes are so varied and beautiful it really feels like working with paint or some other artistic medium.
How long do roses last in a vase?
the flowers will last a good ten days in the vase if cared for and are conditioned properly.
How long does it take for zinnias to bloom?
Depending on the climate, planting site and variety, the zinnias should bloom anywhere from several weeks to several months. Deadheading spent blooms promotes additional flowers, and the blooms attract beneficial pollinators like hummingbirds and butterflies. Zinnias are attractive additions to cottage, butterfly and cutting gardens. They are drought-tolerant once established.
When do zinnias grow?
Considered warm-season annuals, zinnias germinate and grow best when all threats of frost have left your region in springtime. Although there are 17 different species in the genus, according to Missouri Botanical Garden, the most common zinnia grown is Zinnia elegans, known as the common zinnia.
How big are Zinnia angustifolia flowers?
Zinnia angustifolia flowers range in size from 1 inch to 3 inches in diameter, according to NC State Extension, and the single petals surround a center disc. Plants bloom summer through fall, and, depending on the cultivar, the showy flowers are bicolored, white, red, pink, orange and yellow.
What is the name of the zinnia plant that grows from seed?
Commonly called creeping zinnia or Mexican zinnia, Zinnia angustifolia is another popular zinnia variety easily grown from seed. Compared to Zinnia elegans, it's more compact and bushier, averaging around 8 to 16 inches tall, depending on the cultivar. The green branching stems are hairy and covered in rough, lance-shaped leaves that grow 1 inch to 3 inches in length.
How tall does Zinnia elegans grow?
Depending on the cultivar, Zinnia elegans grows anywhere from 6 inches to 4 feet tall. In addition, the plants have an upright habit with multiple, hairy stems covered in green, lance-shaped leaves with a rough, sandpaper-like feel. Get the Best Mortgage Rate for You | SmartAsset.com.
How tall does a creeping zinnia grow?
Compared to Zinnia elegans, it's more compact and bushier, averaging around 8 to 16 inches tall, depending on the cultivar. The green branching stems are hairy and covered in rough, lance-shaped leaves that grow 1 inch to 3 inches in length.
Can you transplant zinnias in pots?
However, zinnias are sensitive to transplanting, according to The Old Farmer’s Almanac, but starting the seeds in peat pots and then transplanting the entire pot into the garden or into pots solves the problem, as you won’t be disturbing the sensitive root system .
How tall do dwarf flowers grow?
There are dwarf forms that grow no taller than six inches that are perfect for window boxes and containers, but there are also tall forms that are perfect at the back of the flower bed, growing up to three feet tall.
Do zinnias need sun?
Zinnias need full sun and well-drained soil. Once established, they're drought-tolerant, but will thrive with regular watering. Try to keep water off the leaves, though—most zinnias are susceptible to powdery mildew, although newer cultivars have been bred for resistance.
Can zinnias grow in Florida?
When cutting flowers, leave enough stem with leaves, and you'll soon find a new bloom growing. You can also pinch them back to encourage fuller growth. For longer flowering, remove the old blooms. Unlike many bedding plants, zinnias can handle Florida's hot summers, and healthy plants will bloom throughout the summer, often until the first frost.
Can zinnias be planted in containers?
There are different flower forms as well, with some having a simple, single petal layer (looking similar to a daisy), and others have multiple layers, with a few cultivars resembling dahlias. Use your zinnias in a mass planting, containers, or as a border.
