Petunia grandiflora

Probably a well-known flower everywhere that gardeners love is petunias. Petunia blooms for quite a long time, it is a very beautiful plant with bright flowers. Petunia grandiflora is one of the most striking types of petunias. Further you will find out what kind of plant it is and how to care for it incorrectly. You will know who how to get through, where this plant came from, how to choose the right seeds and how to grow beautiful healthy plants.

Petunia Grandiflora: variety description

Petunia grandiflora: photos

Consider a few of the characteristics of this variety:

• Petunias grandiflora are annual plants. They belong to the nightshade family.
• Compared to other types of petunias, there are not very many flowers on the bushes of this variety, but they are large and very beautiful.
• The average growth of one shrub is about thirty to thirty-five centimeters, and the diameter of the flowers can reach twelve to thirteen centimeters.
• The peculiarity of this petunia is that the flowers can be regular and double legs - unfortunately, double ovary is a rare occurrence.

How did this variety come about?

The birthplace of petunia grandiflora is Uruguay, and the first mention of it was described in one thousand seven hundred and ninety-three. Then petunias began to be found in South America, Argentina and Bolivia, by the earlier Santa Catarina and Rio Grande. About thirty species were found. This type of petunia was found only near the rivers of South America. The wide range of habitat had a single species, it is the petunia parviflora. It is still found today in Cuba, western India, Mexico and the United States.

After a while, they found and described several more types of petunias. Until now, breeders are working on the invention of new varieties of these beautiful plants. From one thousand eight hundred and thirty-four, hybrid petunias began to appear, and they literally filled all the parks, estates and flower beds of the world.

What are petunias and how are they different?

The number of varieties of petunia is amazing, but there are three main types. Now you will learn more about each one.

The first specimen is a multi-flowered petunia.

There is a multi-flowered petunia, they are considered the most plastic in relation to climatic conditions and the most unpretentious.

Any land can be used for planting such petunias, and they love the sun very much.

Plants need watering and fertilization from care.

One flower is about four to five centimeters in diameter, there are many of them. Flowering is observed early and long enough.

The best feeding option is periodic vitamin feeding; plants also love free space and can grow in pots.

The second instance is petunia of the Grandiflora variety.

The next type is called grandiflora, or in translation, large flowers.This species has some peculiarities of the entrance and is very fond of warmth.

Decorativeness is quickly lost if the plant has too much moisture. Also, the plant needs special care if the plant grows inside the house and it is imperative to follow the rules of growth.

Good lighting and a very nutritious soil, which will contain mineral and vitamin supplements, are also important for a plant of this species. Also, the plants will need to be constantly trimmed and the temperature in their room maintained.

The third instance is floribunda

And the last species is floribunda. In fact, this is a mix of the first and second types.

• There are many inflorescences and they are quite large in size.
• The plant is neutral to bad weather.
• Plants are well used for decorating various places, for example, flower beds or loggias. It grows just as well in vegetable gardens.

Subdivisions of petunias.

There is one more division of petunias. They are divided into: 1) ampelous., 2) semi-ample., 3) cascading... Let's consider each separately.

Ampel varieties of petunias

Consider the characteristics of this variety.

• Ampel varieties of petunias are ornamental plants.
• The loops can be up to one and a half meters in length, the shoots are falling.
• Available for growing in various containers, for example, baskets or pots.
• Many gardeners believe that a planter is the ideal place for these plants.
• Often used to create a beautiful floral finish.

Cascading petunias

Consider the characteristics of this variety.

• Cascading petunias are characterized by strong growth.
• They are grown in huge containers and have long side shoots.
• The usual length of the lash for this species is one and a half meters.
• The height of the shrub is usually up to half a meter.

Semi-ampel views

Consider the characteristics of this variety.

• And the semi-ampelous species are lush bushes.
• The average height of this species is thirty-five to forty centimeters.
• It is often used as a houseplant.

Petunias Bravo

• This is the first petunia species to bloom.
• They have a lot of all kinds of colors.
• By the time of flowering, they bloom about the same.
• Lack of lighting is not critical for this species.
• Can be used as houseplants and are very branchy.
• They do not outgrow in the garden.
• Regardless of the place of planting, that is, in the open field, and in a pot, the plants will look great.
• The average height of the bush is thirty to thirty-five centimeters.
• The flowers are about eight centimeters in diameter.

Petunia Grandiflora: how to grow properly?

Consider a few recommendations for growing this variety using seeds.

• Sowing seeds is suitable for light soil, the basis of which is peat.
• Seeds of petunia Grandiflora are scattered over the surface and covered with a small layer of soil.
• In order for the seeds of petunia Grandiflora to germinate better, their shell dissolves better, the humidity must be one hundred percent.
• Cover the seeds to maintain moisture.
• The normal temperature for seed germination is considered to be about twenty-four degrees.
• After the first shoots appear, the optimum humidity is from six tens of percent to seven tens of percent.
• Excessive moisture in the soil can prevent air from reaching the roots of the plant, and then they can get sick.
• After the first shoots appear, you can feed the plants with fertilizers with potassium and potassium nitrate.
• Attention. It is important at this stage of plant development to check the roots, if they do not grow fast enough, then it will be necessary to use drugs.
• At this time, the optimum temperature for plants is about twenty degrees.
• It is necessary to feed the petunias with fertilizer containing ferum and boron.
• After the seeds of petunia Grandiflora f1 have sprouted enough, the containers with them must be transferred to a lighted room.
• In the first seven days of planting, plants should be illuminated for eighteen out of twenty-four hours.

How to transplant petunia grandiflora f1 in a pot?

For this, land is used, the basis of which is peat.

• After you have transplanted the plants, a week should come and the temperatures around them can be reduced to sixteen degrees. The soil temperature should be around twenty-three degrees.
• During this period, plants need a lot of light, and in the hottest hours, that is, at noon, it is better to give them some shade. Petunia is grown when the average temperature is about fifteen degrees and the lighting is strong enough.
• The roots will gradually fill all the space inside the container in which the petunia grows.
• After this process is completed, the temperature around must be lowered by a few more degrees.

Feeding for petunias Grandiflora f1

• During watering, it will be better to feed the plants with fertilizers containing a ferum.
• Watering without fertilization is not recommended.
• If the lighting is sufficient, you can fertilize with ammonium. If you think that the lighting is insufficient, then fertilizing with calcium will help.
• Fertilizer from homonyms is also used when the lighting is good and the day is long.
• Accordingly, when the temperatures are low enough and there is not enough light for the plants, a calcium-based fertilizer is used. For a plant to grow and develop well, the ideal temperature for it is not very high, and the lighting should always be good.
• To prevent petunias from stretching upwards, small doses of retardants can be applied to the plants.
• Growth regulators are applied every two weeks. But best of all, correct growth is influenced by the correct light, feeding and watering regime.

Petunia Grandiflora: rules for caring for the variety

In order for you to get seedlings, you need to know how to care. Consider a few recommendations for caring for this species:

• After the seeds are sown, the containers should be placed in a warm enough place and covered with plastic.
• When the first shoots begin to appear, the entire structure must be moved gradually towards the light until the polyethylene is removed.
• Watering is done depending on how the soil dries up.
• Waterlogging will kill the plants.
• Diving of sprouts must be carried out when the first normal leaves appear. Each new sheet needs its own capacity.
• Fertilize seedlings three dozen days after planting.
• When the weather becomes finally warm, the seedlings are transplanted in the garden bed or in pots.

What pests and diseases can harm petunias grandiflora?

Blackleg

The disease, when the part of the stem located near the root becomes liquid, gradually begins to rot and changes color to a darker one, is called a black leg.

For prevention, you should not plant plants too close to each other, and also do not plant petunias on heavy and acidic soil.

It is important to remember that such diseases can be caused by an excessive amount of nitrogen fertilizers, so their amount must be strictly regulated, as well as watering.

In order to prevent the spread of the disease, diseased seedlings are removed along with the soil around them.

Gray rot

Another well-known fungal disease is gray mold. Consider the characteristic features of this disease.

The first signs are the appearance of brown spots and a rash on the shoots, then it begins to become covered with fluff.

As a preventive measure, you should also avoid dense plantings and too much moisture.

Too low temperature can also affect and it is important to remove damaged areas of plants.

White rot

If you notice wet, whitish spots that are covered with a white coating on the plant, then this is white rot.

Damaged shoots become softer and noticeably change color to white.

In this case, digging the soil and adding limestone to it will help you.

During any illness, it is important to remove the damaged areas of the plants.

Wet rot

A disease that looks like black rot, wet rot.

If you notice signs of its manifestation, it is necessary to spray the plants with chemicals and remove the damaged areas.

If rust-like spots appear on the shoots, this is a brown spot. Copper-based drugs help from it.

Late blight

A dangerous disease in which the stem begins to rot is late blight. As a preventive measure, you just need to ventilate the greenhouses and avoid planting too close.

Important. To cure diseases that are higher, it is necessary to completely remove the diseased plant.

Petunia Grandiflora f1: viral and bacterial diseases

Tomato aspermia

Flowers begin to develop abnormally if the plant is infected with the tomato aspermia virus.

Leaf galls

Leafy galls are formations that appear on the stem.

Cucumber Mosaic Virus

If you notice that the flowers of your plant are noticeably smaller and become covered with yellow spots or change color, it may be a cucumber mosaic virus. It disrupts the correct development of the plant.

Potential insect pests of Petunia Grandiflora

The main pests that attack petunias are aphids, whiteflies, thrips, spider mites and slugs.

Aphid: The use of various insecticides helps from them.

Thrips: The use of various insecticides helps from them.

Spider mite: The use of various insecticides helps from them.

Slugs: The use of various insecticides helps from them. Against slugs, it helps to scatter superphosphate over the upper surface of the soil.

Whitefly: The use of various insecticides helps from them. Whiteflies are also recommended to be caught with glue traps.

Petunia Grandiflora: reproduction

Let's consider a few nuances.

• Still, petunias propagate using seeds, much less often using cuttings.
• For grafting, it is necessary to cut off young shoots up to fifteen centimeters long, remove their lower leaves and deepen into the ground.
• At the same time, constant soil moisture and an average temperature of up to twenty-four degrees should be maintained.

There are a number of problems that can arise with flower growth.

Let's consider them.

• Sometimes poor quality seeds come across.
• You may not completely fulfill the conditions of the necessary care.
• And also there are attacks of pests and various diseases.

Conclusion

Follow all the rules of care, do not be afraid to grow petunias in your home, these are wonderful plants, if you do everything right, your eyes will rejoice, looking at the wonderful fruits of your labor.