1、 Papaya Begonia

Papaya Begonia is a very shade and cold resistant variety, which is suitable for planting in northern courtyards. It will bloom every spring, with bright colors and large amount of flowers. The ornamental value of flowering period is very high. It consumes a lot of nutrients during growth. In order to promote vigorous growth, it is recommended to apply fertilizer appropriately to ensure sufficient nutrients

2、 Alum root

Alum root is a perennial herbaceous flower with strong cold resistance. It can also be cultivated in Northeast China. It usually blooms between April and September. The flowers are small and beautiful, just like a string of small bells, so it is also called coral bell. In addition, its leaves will change colors according to the environment and seasons, with high ornamental value

3、 Spiraea

Spiraea is a cold resistant shrub. Although it likes light, it also has a certain ability to withstand shade. It has strong adaptability to the environment and mostly grows in open grasslands and gullies. If you want to cultivate it in the courtyard, you'd better use fertile and deep soil, so that it will grow more vigorously

4、 Lotus Peony

Lotus peony has strong cold resistance and is not resistant to high temperature. It likes a semi cloudy environment. Dormancy occurs during the high temperature phase every summer. Its main feature is flowers. The flowers are like an upside down turtle. They have bright colors and high ornamental value. They will bloom from April to June every spring

5、 Sizhao flower

Sizhao flower does not have high requirements for temperature during its growth. It can withstand the low temperature of minus 28 ℃ and has certain shade resistance. It can survive the winter safely in most areas. It blooms from May to June every year, and the flower color is mostly white

6、 Other plants

There are many kinds of cold and shade tolerant garden plants. In addition to the above five kinds, there are dodder, color leaf taro, Begonia, Berberis, Hosta flower, Bauhinia and so on