When you have a small garden, or when you want to make more use of the space by putting a greater number of plants, it is essential to choose trees whose root system is not invasive, since otherwise we would end up having many problems and it is likely that we would end up cutting down the tree with all that that entails.
To avoid this, we have selected for you 10 trees with little root, which can be planted near buildings as they do not need much space to grow properly.
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And let's start with the Acer palmatum, better known by the name of Japanese Maple or Japanese Maple, which are deciduous trees that turn beautiful in autumn. There are many varieties, and even more cultivars, some can even exceed 10m in height. But for the case that concerns us, and more if you have a small patio or garden, I recommend that you get one that is grafted, since these do not usually exceed 5m Tall. Of course, they need both the soil and the irrigation water to be acidic, with a low pH, be protected from direct sun, and that the climate is also mild to cool, with temperatures below zero in winter (down to -15ºC).
Looking for a tree that has decorative leaves and flowers? One of your options may be the Albizia julibrissin, which is a deciduous plant that grows very well in hot climates, as long as the winter is a bit cool, with temperatures below zero (down to -6ºC). Reaches a height of up to 6m, and its flowers appear grouped in inflorescences of pink color, very beautiful.
El Callistemon viminalis, or Weeping Pipe Cleaner, is a perennial shrub or small tree that grows up to 4-6 meters tall. It has light green, lanceolate leaves and flowers that are grouped in red inflorescences. Its bearing is weeping, which gives it a very pretty appearance. It is especially indicated for those areas where the climate is warm, with frosts of up to -7ºC.
La hakea laurina, or pincushion hakea, is one of the short-rooted evergreen trees that has really curious flowers, as they look like dancer's pom-poms. Reaches 6 meters in height, and it is a plant with green leaves that will surely give you a lot of joy. It resists heat well (not extreme), as well as soft frosts of up to -4ºC.
La Koelreuteria paniculata o China soap tree is one of the most beautiful trees with few roots for gardens. Reaches a height of up to 8 meters and forms a rounded crown with pinnate leaves that turn yellowish or orange in autumn. When summer arrives, it produces yellow flowers gathered in panicles that can measure up to 40 centimeters long. It is a very undemanding deciduous species that can withstand frosts down to -18ºC.
Prunus cerasifera var pissardii
El Prunus cerasifera var pissardii, or flowering cherry, is one of the non-invasive root trees that I highly recommend planting in small gardens. Although it reaches a height of about 10 meters, rarely 15 meters, it develops a rather narrow crown.; and since its root system is not aggressive, it is simply perfect. Also, there is a purple leaf variety, the 'Nigra', which is very pretty. As if that were not enough, it blooms during the spring, producing white flowers of about 1 centimeter, and if they are pollinated, their fruits will ripen, which by the way are edible. Withstands up to -12ºC.
La Syringa vulgaris or Lilo It is a tree with few roots that grows up to 7m, although it can be pruned in spring keeping it lower. It has deciduous leaves, and very pretty flowers, purple or white, very fragrant. It is a plant that attracts butterflies, so if you would like them to go more to your garden, do not hesitate to put this plant in an area where it gives a lot of light. It also resists frost, down to -5ºC.
La Peruvian Thevetia or yellow oleander it is an evergreen tree with few roots that does not grow much: no more than 7 meters high. It has lance-shaped green leaves, and in summer it produces bell-shaped yellow flowers. It is a very grateful plant that tolerates pruning and can withstand light frosts, down to -4ºC.
La Lagerstroemia indica o Jupiter Tree is a short-rooted garden tree whose leaves are deciduous. Grows up to 6-8 meters, with grouped flowers terminal inflorescences of pink, mauve or white. It has a very slow growth rate, but in its favor it must be said that it supports heat better (up to 38ºC) than other acidophilic plants, and also frost (up to -15ºC).
El Ligustrum japonicum or privet is one of the outdoor trees that looks best in small or medium-sized gardens. It reaches a height of 10 meters, but it tolerates pruning so well that it can be grown as a 5 meter tall plant. The leaves are evergreen, and the flowers are yellowish. Withstands frost down to -18ºC.
Which of these little rooted trees did you like the most?