Fall zinnias are Superstar colorful beauties that provide a stunning mixed border or a huge bed of color in your environment. They function nicely in containers as well.
Designated Superstar status
Texas Superstar is a label that has recently been applied to these flowers. Only after extensive field testing by Texas A&M AgriLife Extension Service and Research is this accolade awarded. They must do better than expected under Texas’ challenging circumstances. Plants are given little soil preparation, a decent amount of water, and no pesticides during field testing. According to Texas A&M AgriLife Extension’s Texas Superstar 2020 booklet, this is the case.
The profusion and zahara series of fall zinnias are said to be disease resistant and create heaps of color until frost if they are introduced in late summer, according to the Texas Superstar 2020 brochure.
This time of year, you can enjoy the more conventional flowers from the dreamland and magellan series without worrying about illness problems that appear in the spring. If you use containers, you can use a variety of potting mixes, most any well-drained soil, and full sun for these blooms.
In Texas garden centers, fall zinnias of all varieties typically appear in September. Typically, they come in 4-inch and bigger pots that can be transplanted into the landscape. They are also available in sizable containers that can be utilized to grow plants for patios. According to horticulture Brent Pemberton of AgriLife Research, “They’re nice to put in mixed containers with other things for fall, such as ornamental grasses or ornamental peppers. Pemberton continues by saying that they also draw pollinating insects, which increases their amusement.
Grow from seed
The only thing left to do is to begin planting because the research and testing have already been completed for you. In your garden bed, fall zinnias prefer to grow from seed, according to The Old Farmer’s Almanac. When they are grown up, they dislike being relocated and frequently do not fare well.
When conditions are good, they can quickly grow from seeds. If seeds are transplanted when they are still very young, they can be started indoors. After the last frost has passed, plant your seeds. For optimal results, zinnias prefer temps between 60 and 84 degrees. You can lengthen the blossoming season by spacing out your seed sowings every week.
Select location with full sun and good air circulation
To help prevent late-season foliar diseases like powdery mildew, choose a position with full sun and sufficient air movement. Zinnias can grow in a variety of soils, but they prefer ones that are well-drained and rich in organic matter (compost). The ideal pH range is from 5.5 to 7.5.
Depending on the kind, space plants anywhere from 4 to 24 inches apart. The majority of popular types are sown with rows spaced 2 feet apart and 6 inches apart. Plant seeds around 1/4 inch deep. Depending on the soil’s quality and the environment, seedlings will appear in 4–7 days and blooms in a month or two.
To stop disease, thin seedlings when they are 3 inches tall, spacing them 6 to 18 inches apart. As a result, powdery mildew is less likely to grow.
Easy care for mature plants
It’s simple to take care of your mature fall zinnias. For the best development and blossoms, keep the soil just slightly damp and apply a mild fertilizer. Deadheading involves cutting off old blooms to encourage the development of new ones.
Annual fall zinnias will disappear with the first harsh frost. If you decide to reseed, wait until the season’s last blooms are fully developed before scattering the seeds across your flower bed. When the young plants are small, between 2 and 3 inches tall, you can thin and space them out, keeping in mind to do this.
See Superstars locally at VEG
Every day of the year, a variety of Texas Superstar plants are on exhibit at the neighborhood Victoria Educational Gardens. The garden, which consists of 19 tiny gardens, was constructed by community Master Gardener volunteers with funding from kind sponsors. The garden is maintained all year round by volunteer Master Gardeners. As new Texas Superstar plants are designated and become available, they are added to the list. The list keeps expanding.
The garden complex is accessible every day and admission is free. It has a citrus grove, a vegetable garden, a children’s garden, a rock waterfall, and a tropical garden with twin ponds. A sizable gazebo, a rose garden, and many other sights are available.
Mondays and Wednesdays are workdays, so if you’d like to chat with a Master Gardener, you can find them all over the gardens doing glamorous things like picking weeds and cutting the grass.
Do you reduce zinnia plantings in the fall?
For a variety of reasons, including protection, adding winter interest, and assisting local animals, a few common perennials should be left in place all winter.
Plants to Cut Back In Spring:
- yearly wildflowers Leaving annual wildflowers like sunflowers, zinnias, or cosmos up through the winter encourages them to set seed and return the following year. Cut them back and leave the debris on the ground if you can’t bear to leave them up (or if you live in a HOA and are required to do so). For the following season, this ought to assist them scatter some seeds.
- To draw and feed birds throughout the winter, Echinacea (Coneflower) and Rudbeckia (Black Eyed Susan) should be left up until April.
- To provide height and interest, Sedum and ornamental grasses should be left in place all winter.
- As the foliage helps to shield their crowns, Butterfly Weed (Asclepias), Ferns, and Heuchera (Coral Bells) should be left till spring.
Depending on the variety, hydrangeas can either be clipped in the late winter/early spring or right after they have stopped blooming. Hydrangeas that flower on older growth, such as “Endless Summer,” should be clipped as soon as the flowers have faded. It is best to prune hydrangeas that bloom on new growth in the late winter or early spring, such as the well-known “Annabelle” and “Limelight.” This is why it’s wise to keep plant tags or make a list of the different types you have in your yard.
Even though it might occasionally feel overwhelming, fall cleanup can be completed in a matter of hours if you have all the necessary knowledge at your disposal.
How can I get my zinnias ready for the winter?
Zinnia should be planted in the spring, starting indoors if it’s too chilly outside, whether in a flower bed in your garden, a container, or a garden box.
Sowing zinnia
If temperatures have not yet above 65F, the zinnia flower must be planted in a protected area due to its fear of the cold (18C).
- In a greenhouse where the temperature is at least 60F, sowing takes place in March (15C).
- Starting in the month of May, seeds can be planted directly in the ground.
- Starting in May, plant your seedlings in the ground, leaving 8 to 12 inches (20 to 30 cm) between each plant.
You are completely able to gather Zinnia seeds from withered blooms and keep them dry over the winter in a paper envelope. In this manner, you can plant them the next year.
Planting zinnia
Wait until mid-May to plant your zinnia plants after you have prepared your seedlings in nursery pots or if you ever bought ready-grown plants in a horticulture store.
- The warmest area of your garden belongs to zinnias because they enjoy the sun.
- Combine special flower plant soil with garden dirt.
- Depending on the kind, place each zinnia 8 to 12 inches (20 to 40 cm) apart.
- ample water.
Do zinnias reseed each year?
One of the simplest flowers to plant, zinnias grow quickly and provide a lot of blooms. Additionally, they will continue to bloom right up until the first fall hard frost. Consider trying zinnia flowers this year to add a huge splash of color to your yard.
About Zinnias
Since zinnias are annuals, they will only produce blooms and seeds for one season before dying. The original plant will not reappear the following year. They are excellent for use as a cutting flower or as food for butterflies since they have vivid, solitary, daisy-like flowerheads on a single, tall stem.
Types of Zinnias
Zinnia elegans, the most widely grown zinnia species, has been developed to produce a large number of distinctive variants.
Single, semidouble, or double zinnia blooms are the three most common varieties. The number of petal rows and whether or not the flower’s center is visible serve to distinguish between these forms:
- A single row of petals and the center are both visible on single-flowered zinnias.
- Petal rows abound on double-flowered zinnias, and their centers are hidden.
- Between the two are semidouble-flowered zinnias, which have several rows of petals but discernible cores.
In addition to these shapes, zinnia flowers also occur in “beehive,” “button,” and “cactus” forms. Additionally, the plants themselves come in various heights: taller types function best as a garden bed’s background, while shorter varieties are useful as a border. There is a zinnia for every garden, in fact!
In an annual or mixed border garden, plant zinnias. Smaller zinnias work well as window boxes, edging, or in other containers.
To have a lot of flowers all season long, choose a place that receives full sun (6 to 8 hours of sunlight every day). Additionally, later in the season, foliar diseases like powdery mildew can be avoided by planting in an area with sufficient air circulation.
Although zinnias can grow in a variety of soil types, they prefer organically rich, well-draining soil. The optimal pH range for soil is between 5.5 and 7.5. The blooms will grow more quickly if compost (humus) is added to the soil. Find out more about soil improvements and getting the soil ready for planting.
When to Plant Zinnias
- Because they dislike being transplanted, it is advised that you start your zinnia plants from seed directly in the garden bed. If the correct circumstances are present, they will develop quite quickly from seed.
- It should be noted that zinnias can be grown from seed inside if you like. Just make sure to transfer them gently and young.
- Because zinnias are delicate to frost, wait to plant them until after the last frost in your area. See the frost dates in your area.
- Zinnias can tolerate daily temperatures as low as 60F (16C), although a range of 7484F (2328C) is ideal.
- To prolong the flowering time, sow a new crop of seeds every week or so for a few weeks.
How to Plant Zinnias
- Depending on the kind, place plants 4 to 24 inches apart. (Many common kinds are planted 2 feet between rows and 6 inches apart within the row.) For information about each variety, consult the seed packet’s back.
- Plant zinnia seeds no deeper than 1/4 inch.
- The majority of zinnia cultivars will produce seedlings in just 4 to 7 days, but it may take up to two months or more for blooms to appear (depending on planting site and climate).
- To promote air circulation, thin seedlings when they are three inches tall, spacing them 6 to 18 inches apart. As a result, powdery mildew is less likely to grow.
- To promote development and blossoms, keep the soil’s moisture level moderate and apply a mild fertilizer.
- Deadhead zinnias once they have finished blooming to facilitate the development of new blossoms.
- Since zinnias are annuals, they will perish with the first fall hard cold. Let the final blooms of the season fully mature before dispersing their seeds if you want them to reseed.
Zinnias still not your thing? In your garden, try them out for the following six reasons:
- With cultivars from the Dreamland Series, you can have a full-sized flower on a little plant. These zinnias are compact and dwarf, with stems that are 812 inches tall and totally double flowerheads that can be up to 4 inches across with a variety of colors.
- The dwarf, spreading cultivars of the Thumbelina Series have weather-resistant, solitary or semi-double flowerheads in a variety of hues. Their stems can reach a length of 6 inches, and their petals are 1-1/4″ wide.
- One of the largest and tallest of them all, the State Fair Series has huge, double flowerheads that measure 3 inches in diameter. Stems can reach a height of 30 inches.
- Typically, it takes zinnias 60 to 70 days from seed to flower (though it depends on conditions and variety). They are fantastic in a bunch of flowers!
- The tiny, narrow-leafed zinnias are great for hanging baskets and also make lovely dried flowers.
- Zinnias are considered to represent memories of those who have passed away. Discover more about the significance of flowers here.
- Zinnias may be harmed by bacterial wilt, powdery mildew, and bacterial and fungal spots. To prevent illness, keep leaves from getting too damp and correctly space your plants.
- Problems can also be brought on by caterpillars, mealybugs, and spider mites. Spraying should be avoided unless there is a real infestation because some leaf damage is not a problem.
- Thanks to their resistance to deer, zinnias may be able to prevent surrounding flowers from being eaten.
In the winter, should zinnias be pruned back?
Multiple flowers will sprout when two medium-sized stems are cut together. Just follow one stem down and see whether it links to another.
To encourage bushier growth, remove the two stems at their point of union. Since zinnias are annual plants, you must transplant them after they have blossomed.
You can also let the plant to produce its final season’s worth of blossoms and let them release their seeds before withering.
Check your plant carefully for any discolored or fading flowers. This is just another indication that your zinnia needs to be pruned.
When your plant is young, you should pinch it back to encourage future long stem growth. The secret to bright, bushy blooms is deadheading.
Your Zinnia plant will grow closer to the ground if the lowest stems are pruned. However, your Zinnia will grow taller from the ground if you cut the higher stems.
Since zinnias are hardy, it won’t really matter whether you prune them lower or higher from the ground.
watering
The plants zinnias are thirsty. During dry conditions, give them a thorough soaking at the roots once a week. Pay close attention to zinnias in pots and keep an eye out for signs that the compost is beginning to dry up; in hot weather, this can happen every day.
fertilising
Feed zinnias with a liquid feed throughout the summer, especially if they are in containers. Do this about 4-6 weeks after planting, or after the compost’s fertiliser has mostly depleted.
staking
The best way to support plants is with individual stakes. Use pea or jute netting to cover young plants and support it between bamboo or hazel canes if they are being planted in a vegetable or cutting garden for picking. The zinnias are barely supported and will climb up and through the grid. The netting will soon be covered in fresh leaves and foliage.
Staking them correctly is worth the work because they benefit immensely from early straight growth. They will never develop or bloom as effectively when supported vertically as they will if they collapse.
propagating
Zinnias are semi-hardy annuals, thus it is better to start them from seed every year. If the seeds were from a hybrid variety, they might not germinate, but they should still have lovely blossoms. Wait for the flowerhead to fade and dry before gently cutting it off once the seeds have matured. Knock the flowerhead over a piece of paper to let the seeds fall. Remove any petals, let the seeds dry for a few days, and then store them in a paper bag with a label until the next year.