Sow a handful of seeds in autumn and they actually bloom into a big patch that fills the balcony

Autumn is a very suitable season for sowing. As the saying goes, sow one seed in autumn and harvest ten thousand flowers in spring. Sow a few flower and plant seeds in autumn, and by spring you can have a whole balcony of blooms!
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Balcony autumn sowing"
-Double-flowered petunia-
Petunias are very beautiful, bloom profusely and are very easy to care for. Double-flowered petunias are even more beautiful in bloom, with layer upon layer of petals; even a small pot can give a feeling of profuse blooms and full vitality. Placed indoors or in a courtyard, they not only beautify the environment but also help you relax.
The germination temperature for double-flowered petunias is 10-25°C; too low a temperature will affect germination. The seeds of double-flowered petunias are very small, so when sowing, scatter them on the surface of the potting soil. For watering, it is best to use the soak-pot method to avoid washing the seeds away. When the seedlings grow to 4-5 leaves, they can be moved to a larger pot.
Double-flowered petunias like light and fear water. During care, you should give them more sun and water them sparingly.
-Pansy-
Pansy is also known as cat's face, human-face flower, butterfly flower, etc. Italians regard it as a token of longing and remembrance. Pansies have many legendary and romantic stories, and most of them are related to love, so they are often used to express affection.
The germination temperature for pansies is around 15-20°C. Under light-avoiding conditions, young sprouts can be seen in 7-10 days, and they can bloom 14-15 weeks after sowing. Note that when transplanting the seedlings into pots, you should keep their soil ball, as this gives a higher survival rate.
For potted pansies, the soil should be kept moist but on the dry side throughout the entire growing period, so water sparingly; too much water will cause root rot. The growing temperature should be 10-20°C. If there is continuous high temperature, the flower buds will disappear and the plant will not be able to form petals.
-Dianthus-
Dianthus flowers come in pink, purple-red, pure white, red and mixed colors, with single or double petals, and they have a refreshing fragrance. They are also fairly cold-tolerant and heat-tolerant, and very easy to grow.
First soak the seeds in water for half an hour, then prepare loose, breathable soil, scatter the seeds evenly over the soil, and use a thin layer of soil to "tuck them in under a blanket." Water thoroughly, and they will sprout in about 10 days. Once the young sprouts have grown about 4 leaves, they can be transplanted into a larger pot.
Before planting dianthus, apply enough base fertilizer; during growth they need plenty of sunlight, and in summer you need to avoid direct scorching sun, so pay attention to shading; for watering, just grasp one principle: "do not water if not dry, and when watering, water thoroughly"; pinching will increase branching, and the flowers will increase accordingly.
These 3 kinds of flowers are relatively decent in cold tolerance
Keep them indoors in winter, and as long as the temperature is not too low, they will not die
By spring the flowers bloom all over the balcony, so beautiful it's to die for
If you also like them
Then hurry up and plant a pot!