We'll cover the topic in detail: petunia - growing from seeds and when to plant in the ground.
Petunia is a word that comes to us from the French language and is translated as tobacco. It looks flower for the dachaThus: a straight, branched stem crowns a large flower, often with a rather unpleasant scent. The shortest reaches 0.10 m in height, the tallest 1 m. Bushy (15-20 buds), sometimes trailing, offering a wide variety of shades. A huge variety of cultivars, differing in color scheme, bush size, and inflorescence size, are available in pink, white, scarlet, gold, blue, shades of purple, striped, and spotted varieties.
There are small bushes with tiny inflorescences up to 0.10 m tall, or large spreading bushes reaching 0.70-0.80 m in height. For decorating a vegetable garden, outdoor front garden, or patio, it's best to choose a bushy variety. Spring is a good time for sowing. Care is fairly simple and requires no special requirements.
They'll get what even the most novice gardeners expect. Choose trailing varieties to decorate balconies, verandas, and windowsills. They can also be hung to decorate outdoor trees. They'll look beautiful in large vases and hanging pots. Petunias are perfect for accenting a pergola.
Trailing varieties are sown in late winter. They are planted in the garden as seedlings. They can be used to create a beautiful arrangement. Choosing a variety can be challenging; looking at the colorful packages of charming varieties, it's tempting to grab everything at once. However, it's best to approach the selection process more consciously.

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Opt for a package containing a small number of pelleted seeds (about 5) to increase your chances of getting high-quality seeds, or seeds packaged in special containers that protect the seeds from any damage, but this will be much more expensive. These pelleted seeds also require ample watering. We'll explain in detail how to grow petunias from seeds, including when to plant them (with videos). When to plant petunias in Siberia and how to grow them from seeds.
Petunias come in multi-flowered, large-flowered, floribunda, trailing, and surfinias. Now, a brief overview of each class.
Multiflora are relatively easy to grow and require little attention. They're suitable for planting in the hottest spots, as long as they receive full sun. If you're looking to transform your outdoor landscape, they're ideal. The flowers are small, about 5 cm in diameter. However, the bush is dense and blooms for a long time. They're particularly unaffected by weather conditions.
Trailing plants have long, flexible branches reminiscent of vines. They seem especially suited for hanging pots and designer projects. They don't require greenhouse conditions and can brighten up even the most challenging spaces.
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Floribunda—large flowers, multi-flowered—is one of the best combinations. The colors are varied and long-lasting. Ideal for large arrangements. Weather conditions do not affect their condition.
The large-flowered class—the name speaks for itself. Of course, these petunias have large flowers, about 7-12 cm in diameter. They are not very weather-resistant, don't like rain, and require warm temperatures. They are more demanding than the classes described above. They are stunning in their beauty. They are suitable for decorating verandas, houses, balconies, etc.
Surfinias are a hybrid plant. They resemble trailing petunias in appearance. They have strong, long branches covered with flowers, sometimes reaching 1-2 meters in length. During flowering, they create a colorful cascade of flowers. They are resistant to wind and rain.
So, how to grow petunias from seeds and when to plant them

We'll plant the seeds in pre-prepared soil. It should be loosened and moist, and it would be a good idea to add a growth stimulant to the mix. The seeds aren't planted too deeply.
Place the seeds and cover them lightly with soil. Without ample watering, germination will take quite a while. Flowers appreciate misting, and petunias are no exception. Provide the planted seeds with a warm temperature (17-19 °C) using plastic wrap; this will speed up germination and provide additional protection. But don't forget to ventilate the soil daily and check for humidity. Petunias don't like overwatering; be careful, as this can lead to death.
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Approximately 6-7 days are enough for the seeds to germinate. From this point on, the seedlings need to begin to acclimate to being outdoors without the film; try opening the film more often. Another characteristic of petunias is that they prefer full sun or artificial lighting, especially during this period. February seedlings, however, require fluorescent lighting much more intensely and for a longer period. After the leaves appear (which will take about two weeks), use a spray bottle to fertilize the plants. Pricking out is now possible.
Let's look at reviews on when to plant petunias and when to start growing from seeds.
Judging by the reviews, it is better to plant petunia seeds in the second half of March, petunia time, on the sunny side.

Petunia - growing from seeds, when to plant in the ground.
This can be done in March or April. If you plant in March, keep an eye on the weather forecast. Petunias don't like the cold. Try to plant when frosts are no longer likely. The same applies to Siberia.
Repeat this procedure once or twice a week. If you planted it in a plastic pot, the pot should grow as the plant grows. Once the plant is transplanted to its permanent location, wait two weeks, and then feed the plant along with watering (for example, a humate solution is a good place to start).
Use potassium sulfate, alternating the feedings weekly. You should eventually get a plant with bright green leaves, with a short distance between two nodes. Pests and other diseases are a reaction to unfavorable conditions. If you notice them early, spray them with the appropriate solutions. It's very important to check under the leaves and roots. The entire plant should be treated. It will begin blooming around the end of May.

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Some varieties are best planted outdoors from seedlings, while others will self-sow and delight you with lush blooms for many years to come! These varieties produce numerous seedlings, requiring constant thinning. As they bloom, dead flowers should be removed.
Petunias are resilient, which is why they're so common. Even cold weather can't kill them if they're protected in time. They're amazingly adaptable. During flowering, they delight the eye with a variety of vibrant colors, seemingly illuminating everything around them. As promised, we shared everything we knew about them, including how to grow petunias from seed, when to plant them, and photos.

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