The genus Zinnia belongs to the Heliantheae tribe of the Asteraceae family of plants. [3] [4] Native to scrub and arid grassland, they can be found from the Southwest of the United States to South America, with Mexico serving as a hub of diversity. The genus’s members are distinguished by their lone, brightly colored flowers on tall stems. Honoring German master botanist Johann Gottfried Zinn is the name of the genus (172759). [5]
Is the zinnia a full flower?
A herbaceous plant of the aster family, zinnias are herbaceous. More than 100 cultivars and 20 species of zinnia exist, each with unique size, color, and growth characteristics. The southwestern United States, Mexico, and South America are all native home to zinnia. It does best in hot climates, typically in scrub and arid grasslands. On rich, well-drained soil that receives direct sunlight, zinnias grow. Zinnia is one of the most widely grown ornamental plants in the world due to its low maintenance requirements and stunning blossoms.
Zinnia-related trivia:
A bushy herbaceous plant, zinnia. Depending on the cultivar, it can develop multiple hairy branches that are 4 to 48 inches tall.
The leaves of the zinnia have a rough, sandpaper-like feel and are narrow and lance-shaped. On the stem, the leaves are placed in opposition.
On top of the blooming stem, zinnia grows a single flower head. A petal-shaped row of sterile flowers surrounds a cluster of tiny, fertile blossoms in the center of the flower head. A flower head’s width ranges from one to seven inches. Both types of reproductive organs are used by zinnia to generate flowers (perfect flowers).
Zinnias can produce flowers that are white, yellow, orange, pink, red, lilac, purple, or have several colors. Some zinnia flower heads produce a single row of petals with a central disk that is easily visible, while others produce semi-double (several rows of petals with a central disk that is visible) and double rows of petals (numerous rows of petals that completely cover central disk). You can find pointed, twisted, or curved petals. Some zinnias have flower heads that resemble domes.
From the middle of June until the first frost, zinnias bloom. Hummingbirds and butterflies are drawn to flowers, and it is their pollination that keeps these plants alive.
Zinnias are self-sowing plants, which means they disperse their seeds on their own.
The plant known as a zinnia was first described by the renowned German botanist Johann Gottfried Zinn.
Because they can quickly form new flower buds after cutting the flowering stem above the leaves, zinnias are sometimes referred to as “cut and come again flowers.”
Before it gained popularity in gardening, zinnia was viewed as being unsightly, tiny, and unpleasant. This plant is still referred to in Mexico by the Spanish-invented nickname “disease of the eye.”
In butterfly gardens, zinnia is usually grown (gardens composed of plants which attract butterflies).
Because it draws hummingbirds, who consume whiteflies, zinnia makes a great companion plant (insects that feed on the leaves of various plants in the gardens).
Zinnias are often used as cut flowers for making a variety of bouquets and dried floral arrangements. Zinnias have a seven-day vase life.
Depending on the climate, zinnias can be grown as annual plants (lifespan: one year) or perennial plants (lifespan: more than two years).
Do zinnias have several blossoms at once?
If you have multiple strong zinnia plants, you might be able to collect fresh cut flowers every five to six days. Early in the day or late at night are the ideal times for harvesting.
Right above a leaf node, cut the stem at an angle using a clean pair of pruners or scissors. You’ll lose future blooms if you cut the plant completely at the root. With each cut, you want to encourage the plant to divide into two new stems, each of which will bear additional blooms.
While working, try not to squeeze the main stem too firmly as this could damage the plant’s ability to supply water to the flowers. To keep the bottom sets of leaves from later developing mold, remove them. After being cut, the flowers stay longer if the stems are cut at an angle and the water is changed every few days.
Because zinnias wilt a little while they wait for you to finish, I like to bring a vase of fresh water for longer stems and a container for shorter stems to the garden with me. As soon as you can, get the stems inside and out of the heat by placing them directly into the water.
Who or what has twelve petals?
There are some plant groups that typically have 2, 3, 4, 5, 6, 7, 8, 9, or 12 nominal petals. But flowers can also have varying numbers of petals, much as 3-leafed clovers occasionally have 4-leaf clovers. Therefore, flowers that are supposed to have six petals occasionally have five, seven, eight, or even nine. The Stonecrop Family may show the largest variety, with some individuals having 4, 5, 6, 7 or 12 nominal petals, however most Stonecrops only have 5.
Some flowers don’t have petals. For instance, members of the pondweed family, which have four cupped green sepals that resemble petals but are not, instead of petals, have no petals at all. Regardless of how many petals appear, plants like these are classified as if they do. Tiny, green flowers with no petals bloom on sea buckthorn. Other plants, such as ferns, don’t have blooms. Sedges may have margins, but they do not have petals.
If you look closely enough, these flowers may appear to have just one petal, but they may actually have an opening that is slightly cut, like the five triangular teeth at the end of the bell of the cowberry, or they may have a curved “snout,” like the Common Broomrape, which has one lip at the opening. Although the plant may have just have one ‘petal,’ it may alternatively have a curving, somewhat twisted cowl, similar to that of Lords-and-Ladies, which is not at all a petal.
Some trumpet-shaped blooms, like those on daffodils and bindweeds, could seem to have just one petal. However, there is a crease between the petals of bindweeds, and they may also have 5 markings that match the 5 wrinkled petals. Daffodils, on the other hand, have 6 fused petals.
Due to having only two petals, the aquatic Cape Pondweed appears to be exceedingly unique. Flowers with just two petals oriented freely at 180 degrees are quite rare.
Numerous other plants in the mint family, including Red Dead nettle, have two-lipped flowers that are vertically symmetric. Numerous saprophytes also have two vertically symmetric lips, including Red Bartsia and orchids.
Many zygomorphic plants, including members of the Toadflaxes, Claries, and Mint families, can first appear to have only two petals; however, upon closer inspection, it becomes clear that these petals really have five lobes, making a total of five petals.
Although not all three-petalled plants are aquatic, it appears that many of them are. Additionally, no non-aquatic plant has three petals. Flowering-rush, the Water-plantains, the Frogbit Family, the Waterweed Family, and of course Yellow Iris have three quite huge petals among the aquatic plants that have three petals.
The New Zealand Pigmyweed, which has an unusually low number of petals—four—despite being a member of the Stonecrop Family, which typically has five petals, and flowers of the Pondweed Family, which have no petals but four cupped green sepals that resemble petals, are notable exceptions (but some stonecrops have 6 or 7 petals petals).
Additionally, Marsh Cinquefoil has three petals and prefers a wet environment (intersected by 3 bracts).
Flowers with three petals and six petals are both classified as monocots (monocotyledons) [EXPAND ON THIS]
It’s absolutely feasible that the three-petalled aquatic blooms are remnants of an anoxic period in Earth’s history that occurred far earlier (without oxygen). These plants must nevertheless restrict oxygen from their roots in order for their upper parts and leaves to survive or even thrive in an oxygen-rich environment. Other species take oxygen from murky organic materials. There is some oxygen in common dirt. Most plants need at least some air to reach their roots and detest having their roots flooded with water. Aquatic plants, on the other hand, survive with roots in oxygen-free environments.
There are many plant families that have flowers with four petals, including the Brassicaceae [which includes Wintercresses, Yellow-cresses, Rockets, Rapes, Turnips, Cabbages, Mustards, Watercresses (an aquatic example that lacks three petals), Thale Cresses, Bittercresses, Rock-cresses, the Scurvygrasses, Pepperworts, Cuckooflowers, Honesty, Stocks, and Whitlow- The Bedstraw family Rubiaceae, the Tormentil and the Burnet families (two 4-petalled anomalies in the normally 5-petalled Rose Family Roseaceae), Traveller’s Joy (another 4-petalled anomaly in the normally 5-petalled Buttercup family Ranunculaceae), Figworts and Butterfly-Bushes in the Figwort family, as well as the Plantain family Plantaginaceae (which now includes Speedwells).
Five is a peculiar number. Pentagons might be said to have less symmetry than squares, hexagons, and octagons have. Because pentagons do not pack neatly together way triangles, squares, or hexagons do, pentagonal symmetry does not occur frequently in the natural world. For many hundreds of years, it was believed that no mineral crystal would ever be discovered with pentagonal symmetry. However, a few minerals having pentagonal symmetry are now recognized. They are extremely uncommon and have a random structure as opposed to being in a predictable repeated array. But this isn’t the case with petals; five is a relatively common number for them because they don’t have to pack neatly together.
However, certain flowers with five petals do have a distinctive trait. The petals of many flowers with five petals—but not all—have an asymmetrical shape, similar to the propeller blades’ leading and trailing edges. Such flowers include various members of the periwinkle and mallow families. This characteristic, which appears to be oddly limited to flowers having 5 petals spaced in 72 degree intervals around a circle, is also displayed by soapwort and jumping betty. But not all flowers with five petals spaced at a 72-degree angle exhibit this asymmetry. Some have perfect symmetry.
Members of the Rose, Borage, Bellflower, Flax, Wood-Sorrel, Crane’s-bill, Buttercup, Pink & Carnation, Saxifrage, Primrose, Rock-Rose, Nightshade, Thrift, Wintergreen, and St. John’s Wort Families stand out among those that are completely and rotationally symmetric at 72 degrees (1/5 of a circle). more members of the Stonecrop, Figwort, and Gentian Families, albeit not all of them. Despite having only one trumpet-shaped bloom, members of the bindweed family feature markings with a 5-fold symmetry. The Bogbean, Jacob’s-Ladder, and Verbena Families, together with the Mulleins, are minor families having five petals.
However, certain flowers with five petals, while symmetrical about a center line, are not symmetrical in rotation. Families of balsam, bladderwort, and violet. Some members of the dead-nettle family resemble orchids because they have connected petals that appear to have five petals. Monkey Flowers, Toadflaxes, and Valerians all seem to have five petals, but they are symmetrical about a center line instead (that is, they are zygomorphic).
Flowers with 6 petals (and 3 petals) are both Monocots (Monocotyledons). Many flowers that appear to have six petals actually contain an inner and outer row of “petals,” an inner circle made up of three petals and an outer circle made up of three (though not genuine petals, but rather petal lookalikes called tepals) that can stand in for sepals. Frequently, the color of the petals and tepals match.
Cape Lily, Snowdrops (Galanthus species), Snowflakes (Leucojum species), Starflowers (tristagma species), Iris, Montbretias, and other Crocosmia species, Solomon’s Seals (Polygonatum species), Star-of-Bethlehems (Ornithogalum species), and Rushes of the Juncus and Lazulus genera are some examples of flowers with three petals and three tepals
The number of flower families with 6 real petals is likewise extremely large: Purple loosestrife, Winter Aconite, and Anemones like Poppy Anemone (5 to 7 petals),
Six-petalled blooms (many of these may actually have three sepals and three tepals, especially those in the Alliaceae family) Bog Asphodel, Bluebell and Hyacinthoides species, Blue-eyed Grass and Sysyrinchium species, Black Bryony, African Lily and other Agapanthus species, Ramsons and other Allium (Garlic and Leeks, etc.) species, Daffodils (Narcissus species), Crocus species, Day-lilies (Hemerocaulis species), Red-hot Pokers (Knipholia
There is more diversity in the number of petals for plants with more petals. For instance, certain examples of species that typically have 7 petals may actually have 6 or 8 petals. Broad-Leaved Ragwort and Yellow-wort both typically contain 7 flowers, however some varieties can have 6 or 8 petals.
Mountain Avens and Lesser Calendine are examples of flowers with eight petals on average, however they can range from seven to twelve. Typically, Canadian Goldenrod has 8 petals, although it can have up to 11 petals. Sneezewort’s petals range from 5 to 12, but the dedian only has 8.
Field Fleawort No. 102, Hop, and Passionflower (in two overlapping circles of 5 + 5 petals each) all have ten petals.
DOZENS OF PETALS Only Houseleek, a member of the Stonecrop Family, has 12 petals; the majority of Stonecrops only have 5.
Although the Asteraceae family (Dandelions and Daisy) predominates here, other Asteraceae species, such Leopardplant and Gallant Soldier, only have five petals.
It is possible for a flower to appear to have twice as many petals as it actually does if the petals are severely divided, up to more than halfway. An illustration of this is the Bog Stitchwort, which, although having 10 petals that are actually just 5 severely cleft petals. Each petal on Ragged-Robin has two clefts, creating the impression that there are three times as many petals.
A double zinnia: what is it?
Larger than the competitors, double Zahara blooms are entirely double. Especially in sunny, hot, and dry circumstances, award-winning all-season performance and longevity in landscapes and containers. Ideal for mid-level plantings in the landscape, intermediate size. Also does nicely in containers.
My zinnias are single, why?
The most stunning zinnia rows and beds are those with enough watering. I don’t mean drenched in water, but enough water for maximum growth and operation
Your zinnias will try to do whatever to prevent themselves from dying if they become water stressed, like converting bloom output from doubles to singles or cupcake shapes to singles. Although the exact mechanism is unknown, one might presume that when it’s hot outside, the genes for double flowering are turned off.
It’s important to prevent your zinnias from reaching this stage because, in my experience, they rarely recover from being single. To maintain lovely, full zinnias as well as healthy plants, water deeply and consistently.