One of the most well-liked flowering annuals for many years has been petunias. Their appeal is explained by a number of appealing qualities. Petunias are simple to grow, reliably bloom throughout the summer, and come in a variety of colors, flower styles, and growth behaviors.
In the spring, most gardeners purchase petunias from their neighborhood garden center or greenhouse. Petunias can, however, also be started inside in the late winter. Ten weeks or so before the day you plan to plant the petunias outdoors, start the seeds indoors. (Petunias ought to be planted outside once the risk of frost has passed.) In Iowa, late February or early March is a good time to plant.
A suitable germination media is one that has been commercially produced, like Jiffy Mix. Seed-starting containers must to be spotless and have drainage holes on the bottom. Prior to disinfection, previously used containers should be cleaned in soapy water and dipped into a solution of one part chlorine bleach to nine parts water.
Up to 1 inch from the top, fill the container, then lightly press down. The medium should then be moistened by soaking the container in water slightly. Remove the container once the surface is moist, let it drain for 15 to 20 minutes, and then plant the seeds. Another method of moistening the medium is via a sprinkler’s tiny spray.
Petunia seeds are quite tiny. Each ounce contains between 250,000 and 300,000 seeds. It can be challenging for many backyard gardeners to plant the excellent petunia seeds. Thankfully, pelleted petunia seeds are frequently accessible. Pelleted seeds are seeds that have been coated with a substance to make them bigger and more manageable. Sow the seeds carefully on the soil’s surface, and then use a pencil or small piece of wood to gently press them into the germination media. Don’t bury petunia seeds in the germination mixture or cover them with other material because they need light to gerinate. Use a spray or partially submerge the container in water to completely damp the medium after sowing.
For the best seed germination, uniform medium temperatures and moisture are necessary. Place the container in an area that is warm (75 to 80 degrees F) and well-lit. Place a clear plastic food wrap or plastic dome over the container to ensure constant moisture levels. Avoid placing the covered container in the sun. Inhibiting or preventing germination may be due to the high temperatures that may arise from direct sunshine. In 7 to 10 days, petunia seeds should start to sprout.
As soon as germination takes place, remove the plastic food wrap or dome. After that, put the seedlings in a sunny window or beneath fluorescent lamps. Fluorescent lights should be turned on for 12 to 16 hours and placed no higher than 4 to 6 inches above the plants. It should be between 60 and 65 degrees Fahrenheit. When the seedlings have three genuine leaves, transplant them into plastic cell packs, peat pots, or other containers. Continue to grow the plants in a cool area under fluorescent lights or in a bright window if you want stocky plants. Between waterings, let the potting mix dry. Fertilization should not be required if a commercial potting mix with a slow-release fertilizer is used. For potting mixes without a slow-release fertilizer, one application of a diluted fertilizer solution every two weeks ought to be plenty. Before planting the seedlings into the garden, let them harden off outdoors for a few days.
How are Wave petunias grown from seeds?
The most well-liked petunia family is Wave, both for catalog and springtime nursery plant sales. I’ve used more than a dozen Wave types and colors in beds, containers, and mixed pots successfully since 1995. There are currently five types of Wave petunias that come in a huge selection of colors and color combinations:
Many of these may be purchased at big-box retailers and neighborhood nurseries, but since I require more than 60 plants year in three different colors, growing them from seeds is far more cost-effective.
On top of a seed starting mixture based on peat, thinly sow in late February. Due to their small size and difficulty in seeing, most vendors sell “pellets that are simpler to handle because each seed has a ball of inert material surrounding it.
The seeds shouldn’t be covered because they need light to sprout. In a tray with a half inch of water, put the sowing flat, and then cover the tray with clear plastic.
Within 5-7 days, germination should take place. Grow in a dry environment, yet keep the plants from wilting. Transplant each seedling into six-packs when healthy second leaves grow, handling by the leaves rather than the stems.
Grow plants under fluorescent lights and feed them every week or so with a liquid fertilizer that is half strength. Flower buds should start to appear around the beginning of May.
Petunias can withstand a late spring chill because they are actually half-hardy perennials that we grow as annuals. But if you put them outside, their leaves will scorch and fall off unless you acclimate them to wind and sun.
such a slow “Give the seedlings increasing quantities of sunlight over the course of two weeks to harden them off. After the risk of frost has passed, plant outside.
When planting wave kinds in beds, they should be separated by two feet (12–16 inches for Double Waves) and given a monthly fertilizer feeding (like 10-10-10.) Both deadheading and trimming back are not required.
Even a huge container only needs one plant. Feed them once a month with a fertilizer that releases nutrients gradually, then deadhead with a fine stream of water (the plants will recover quickly.)
The container may get congested by the middle of the summer, producing fewer and smaller blooms. If this occurs, cut back long stems all the way to the base and remove about a quarter of the plant every two weeks. This forces new growth from the plant’s heart, keeping them healthy and attractive throughout the summer.
How long do Wave petunias take to grow from seed?
- The seedlings need 10 to 12 weeks to grow large enough to be planted outdoors after being started indoors.
- Your Double Wave petunias will adapt to the outdoors more easily if the planting tray is left outside during the day for a few days prior to planting. After transplanting them, give them shade throughout the warmest part of the day for the first week.
- When you pinch back regular petunias and deadhead fading blossoms, they grow more successfully. Avoid the hassle of Wave variations. These self-sufficient petunias can care for themselves.
- Because petunia seeds are tiny, be careful when planting them and avoid sneezing on them.
How are Wave petunias started indoors?
Gardeners could finally say goodbye to the time-consuming process of deadheading spent petunia blooms with the introduction of the first “Purple Wave” petunia (Petunia x hybrida “Purple Wave”) in 1995. From spring to fall, numerous Wave series cultivars now produce fragrant flowers that are crowned by heaps of similarly aromatic green foliage. Trailing Wave petunias grow to a mature height of 4 to 6 inches and have a spread of 2 to 4 feet. Their pink, lavender, lilac, or blue swaths cascade over garden walls or along walkways. Two to two and a half months prior to planting them outdoors, grow them from seeds that were begun indoors.
Put enough potting soil in a bowl to cover a seed-starting flat. Water should be gradually added while mixing, until the soil is evenly moistened. The damp dirt should be poured into the flat to within 3/4 inch of its rim. To guarantee consistent moisture distribution when watering the seedlings, level the surface of the mixture using a straight-edged ruler.
Lightly strew the petunia seeds, which are quite tiny, throughout the potting soil. With a delicate, uniform water spray, gently pressurize them into the surface. Sprinkle some vermiculite on top of them to just cover them. Without fully obstructing the light the seeds require to grow, it holds them firmly in place.
Create a greenhouse for the seeds to germinate by covering the flat with its transparent plastic dome. Place the flat away from direct sunlight in a warm, bright area. When the air is between 70 and 85 degrees Fahrenheit, petunia seeds sprout the fastest.
After seven days, check the flat for sprouting seeds. Petunias might take up to three weeks to germinate, so be patient. When the first seedlings appear, take off the plastic dome and move the flat to a cooler location where nighttime lows are between 55 and 65 F and daytime highs are no higher than 65 F. The seedlings still need bright, indirect light. Water as necessary to maintain soil moisture.
When the seedlings have three sets of leaves, transplant them from the starter flat to individual peat pots filled with moist potting soil. Each container should have a planting hole made with a pencil. Lift a seedling from the flat with a table fork. Place it there and compact the earth around it. Water the remaining seedlings right away, then do it again. To maintain a steady moisture level in the soil, keep watering as needed.
When should petunias be planted?
One of the most widely used flowers in Louisiana is the petunia. They can be planted in late winter or early spring for warm-season color or in the fall for cool-season color. In local garden centers, you can discover a variety of petunias, as you can with practically any bedding plants these days.
Plant petunias in late January through mid-March for greatest results, or from late September through early November. South Louisiana petunias perform well in the winter. The severity of our winter has a big impact on how well they perform.
Petunias are available in a variety of floral colors. Both single- and double-flowered petunias are available. In general, single-flower forms are more durable over time than double-flower forms.
The following are some “best management methods” to help you enjoy your petunias from now until late spring:
Make sure the garden bed is properly prepared to provide for adequate internal drainage and aeration.
Can Wave petunia seeds be saved?
The free seed-saving talks by Steven Nokes are scheduled for Wednesday at 6:30 p.m. and Saturday at 10:30 a.m. The Otis Orchards Library, located at 22324 E. Wellesley Ave., will host both events. Call (509) 893-8390 for further details.
How would you like to preserve the spirit of the gardening season while also saving money? Garden seeds can be preserved for both purposes.
At the Spokane Valley library, longtime Master Gardener Steven Nokes recently led a session on seed saving. As a result, I had a solid comprehension of the procedure.
The practice of saving and passing on seeds dates back to a long time ago, according to Nokes.
That changed when seed businesses emerged and began offering them at low prices.
There is more interest in storing seeds now that seed packs are more expensive. Additionally, it’s crucial to preserve and pass down to future generations ancestral varieties—whether they were imported from another country by a relative or are well suited to a particular growing zone.
The type of seeds they are is the most crucial detail to know while conserving seeds, according to Nokes. ” If they are a hybrid variety, rather than the plants you stored the seeds from, the offspring will exhibit characteristics of one of the parents.
Wave petunias are an illustration of a hybrid. Although you can keep the seeds, it’s quite improbable that the plants will grow with the same vigor and eye-catching colors.
Hybrids, also known as “F1s,” are made by cross-pollinating two plants of different species or kinds to produce a new variation in a single generation (first generation).
When buying seeds, gardeners should opt for heirloom or open-pollinated varieties. Open pollination is carried out by wind, insects, birds, people, or other living things. You can expect plants that are exactly like the parent because the seeds from these plants reproduce faithfully.
Plants must be mature and dried before collecting seeds. For instance, the pods containing pea or bean seeds should be papery-dry and brittle if you plan to save them.
Nokes advocated saving the seeds from your greatest plants because you’ll end up with those seeds.
You shouldn’t harvest from fragile, little plants.
He provided a few illustrations of the procedure for gathering and drying seeds:
Make sure the peppers are fully grown. To remove the seeds from the pepper skin, slice off the top, remove the cluster of seeds, and then carefully scrape them off. Nokes advises laying them out to completely dry on waxed paper or paper towels.
TomatoesAdd some water to the container with the seeds and juice. Wait until a white mold forms on the surface, then carefully scrape it off. The seeds that fall to the bottom of the jar will be viable if water is added. Wash the seeds with water gradually by washing them off many times. Filter the viable seeds, then spread them out in a single layer and let them completely dry.
either seasonal or yearly flowers
The seed heads can be gently tapped or rubbed until the seeds fall out.
When seeds are dry, place them in a paper bag and keep them in a dry, dark place. Additionally, seeds can be refrigerated, which slows the fall in germination. If at all possible, Nokes advises using preserved seeds in the next growing season.
I’m eager to give seed saving a go now that I have a firm understanding of the fundamentals. All I have to do is keep track of which ones are hybrids.
How should I cultivate Wave petunias?
It won’t take much time or effort to care for wave petunias. These plants appear to be expanding daily in their desire to develop and prosper.
They should be planted in wet, well-drained soil in full sun. Never let the soil become waterlogged; keep it damp.
When you first plant them, feed them with an all-purpose fertilizer. After that, feed them every two weeks until the middle of the summer.
Do wave petunias need deadheading? This is the pure brilliance of these plants, which accounts for their widespread use in gardens. Waves never require deadheading, in contrast to other petunia plants that require continual cutting and maintenance throughout the growing season. Without you needing to cut even one flower, they will keep growing and blooming.
Petunias are difficult to grow from seeds.
Undoubtedly yes! Petunias are reasonably simple to cultivate from seed and very simple to grow from seedlings that have been developed commercially.
Use petunias wherever it is sunny. The low-growing varieties are perfect for patios, planters near doorways and swimming pools, and the front of flower borders. To enliven the area, tuck petunias amid evergreen plants. ‘Wave’ petunias can be used as groundcovers. Many home owners plant petunias close to landscape lights installed near a window or patio where they can enjoy the flowers and their guests at night because they frequently draw gorgeous moths after dark.
All varieties of petunias are excellent for window boxes and planters, although the ones with double flowers work better in containers than in beds. Hanging baskets are the perfect place for cascading petunias. 3 seedlings should be planted in each 10-inch basket, regardless of the petunia variety. In a window box or planter, place seedlings about 10 inches apart.