If you want to grow some perennial plants that can bloom bright and beautiful flowers, and you can see beautiful flowers after planting them once, the following flowers are particularly suitable. They can all be propagated by seeds after the spring warms up. They are particularly easy to grow, and a few seeds can be used to cultivate a large number of flowers.

1. Delphinium

It would be a good choice to plant some delphiniums under the corners of the courtyard walls. Their plants are relatively tall, and the flowers are in clusters of tall flowers. They can grow to nearly two meters high and are a particularly ornamental plant.

Delphinium is a perennial flowering plant with beautiful and charming flowers. If properly cared for, it can bloom continuously every year. The flowers are generally dark blue, but there are also pink, red, white and purple varieties.

It takes about 14 to 21 days for delphinium seeds to take root and germinate after sowing. After sowing, cover the soil appropriately and keep the temperature at around 18 degrees. After the spring warms up, you can cultivate it in loose, breathable and well-drained sandy soil. Sowing with vermiculite is also a good choice. After growing 4 true leaves, you can transplant and cultivate it. To maintain delphinium, there must be sufficient light and proper wind protection. It has good cold resistance.

2. Aquilegia

Aquilegia is suitable for planting behind other plants. It is afraid of being blown by strong winds and is relatively easy to plant. It has many colors and delicate and gorgeous flowers, and is very ornamental.

What you need to pay attention to when cultivating Aquilegia is that their seeds do not germinate very quickly. Some even take more than three months to take root and sprout. Don't think that its seeds are bad. You need to have enough patience.

After the spring warms up, you can sow the seeds in loose and breathable sandy soil, keep the soil moist and avoid soil drought. You can place it in a shaded place with high air humidity. It is best to keep the temperature at around 20 degrees. Be especially careful when transplanting seedlings. You can also sow and cultivate them on the ground. It is very simple to maintain, does not require too much light, and has excellent cold resistance.

3. Rudbeckia

There are many varieties of rudbeckia, and the flower colors include common yellow, red, etc. It has bright and charming chrysanthemum-like flowers. It is very suitable for direct seed sowing and cultivation and is easy to grow. It can be used as an annual plant in the north, but is generally used as a perennial flower.

The seeds can be sown after the spring warms up. Prepare loose and well-drained compost soil. Sow when the temperature is above 18 degrees. The germination temperature is best kept at around 22 degrees.

4. Verbena

Verbena has many different colors to choose from. It is a perennial flower with great ornamental value. It is easy to grow and has a particularly good ability to adapt to the environment. However, its cold resistance is not very good, so it needs proper shade during the winter to avoid excessive freezing.

Verbena can also reproduce by self-seeding. If it is not managed, it will easily spread. Sowing and propagation are particularly simple. After the spring warms up, you can use small seedling pots to propagate. The seeds need light to germinate. The germination temperature should be kept above 18 degrees. It is best to cultivate them on a balcony with scattered light. You can sow them after the weather warms up. Be sure to give them appropriate light for germination.

5. Torchflower

Torch flower is a very tropical flowering plant. Its flowers look like strings of flames. The plant is relatively tall and suitable for planting in the middle of the yard. It can bloom bright and charming flowers when the temperature is high and the sun is shining in the summer.

Torch Flower can bloom throughout the summer. It is also a very cold-resistant plant, so there is no need to worry about frostbite. The maintenance of Torch Flower requires sufficient water and high air humidity, and it grows best in summer.

Seed propagation requires a relatively low temperature to dormant. The purchased seeds are generally germinated and can be directly placed in the seedling pot for cultivation. After germination, they can be exposed to light. It takes 3 months for the seeds to germinate, so you need to be very patient.

6. Veronica paniculate

There are many varieties of Veronica paniculata, some of which are even regarded as wild flowers. It is relatively simple to care for Veronica paniculata. They have strings of flower spikes of different colors, and they can bloom continuously in summer and autumn.

Veronica tatarinowii can also grow well in pots. It can be propagated directly by sowing. Choose a place with scattered light for cultivation. The soil should have good drainage. Waterlogged soil will easily rot.

7. Chrysanthemum

There are many varieties of chrysanthemums to choose from. The flowers are colorful and the shapes of the flowers are different. The heights of the plants are also different. They are not true perennial plants. Chrysanthemums will die when frost comes in winter, but they can sprout and take root again the next year, which is also good.

It can be sown and propagated in autumn and spring. Keep the soil warm and moist. It takes about 10 to 15 days for rooting and sprouting. It can be cultivated after the frost ends.

8. Dianthus

There are many varieties of dianthus that are very suitable for planting in the yard. The short-plant varieties are suitable for potted maintenance. They like to grow in a warm and humid environment with plenty of sunlight. They can be cultivated directly by sowing. You can choose a smaller seedling pot to cultivate them. After sowing, keep the soil moist and place it in a warm place with scattered light.

9. Sweet Snow Ball

Sweet sweet grass is a lovely and beautiful herbaceous flower. Its flowers have a sweet fragrance and are suitable for potted maintenance. It is also particularly suitable for sowing and propagation. The flower colors include common white, yellow, purple, pink and blue.

Sweet sweet grass is slightly cold-resistant and is a perennial plant with excellent heat resistance and a certain degree of drought resistance. It needs as much light as possible to grow and does not grow well in the shade. It can be sown and cultivated in spring and autumn. Keep the soil loose and moist so that it will germinate easily.