Depending on what that is, you may get fruit from it but it will be the rootstock fruit, not the fruit of the scion, or grafted-over section. You have to take the lemon tree's root structure into account at every stage of planting and growing. Most trees have a taproot, but this may not be present in a mature lemon tree. Unlike some houseplants, the lemon tree provides year round interest thanks to its glossy foliage, fragrant flowers, and tart fruit. Fibrous roots grow from this network of lateral roots. The lemon portion of the original trees graft is having a field day with the root suckers cut back as well as producing a lot of flowers and fruit. Not only do the roots anchor/support the tree, they transport the required water and nutrients so that the tree can grow and produce fruit. Repot every two years as the tree grows to its mature size of 4 to 6 feet tall. If your tree was not grafted but was grown from a cutting or from seed, then you'll have whatever the tree was. Can you grow a lemon tree from cuttings as well? In the summer, dwarf lemon plants may be put outside, but carefully watch the weather because these plants are sensitive to the cold. The best chance you have to grow a lemon tree is to germinate the seeds as soon as you took them out from your fresh lemon. Growing a lemon tree from a cutting will create a tree that produces fruit identical to the fruit on the tree from which you took the cutting. 5. Lemon trees and citrus trees, in general, propagate well if you use cuttings. Growing them near the house should help with this. Growing lemon trees outside not only requires warm temperatures, it also requires patience. Plant the lemon tree at the same depth that it was in the original pot. A lemon tree makes an excellent ornamental plant for the kitchen. The drier the seeds, the smaller are the chances they will germinate. Lemon trees and other citrus plants love a hot and humid environment, which isn’t typical of most northern homes, especially during the winter. The fibrous roots are the main site of water/nutrient transport. Flowers and Fruits While lemon trees can tolerate a range of soils, including poor soil, most prefer well-drained, slightly acidic soil. Here in BC, Canada, a fruiting lemon tree is around $70 so you are saving about $15 per year of growth by growing your own tree from seed. The lemon tree is perfectly happy to grow in a container. Lemons are one of the plants that can be propagated via cuttings. Shallow Watering, Watering with Sprinklers, and Wetting Trunks or Major Roots: GardenZeus discourages planting lemon trees in lawns or using sprinklers for watering trees. If your tree was grafted, and the growth is from the roots, then you are growing the rootstock. Growing plants from cuttings is a way to create a genetically identical plant. You have to take the lemon tree's root structure into account at every stage of planting and growing.The roots stay largely in the top 24 inches of soil, because a system of woody roots develops laterally from the trunk in all directions, traveling horizontally well beyond the drip line of the tree. Phytophthora foot rot is a major problem for cutting-grown lemon trees, so only grow from cuttings if foot rot isn’t a problem in your area. Lemon trees need protection from frost. Lemon trees also require full sunlight for adequate growth. The roots stay largely in the top 24 inches of soil, because a system of woody roots develops laterally from the trunk in all directions, traveling horizontally well beyond the drip line of the tree. This means that you can grow these attractive plants indoors. The grafts I attemped were on the stubs of the 2″ diameter root stock. Nursery-grown lemon trees are propagated from budding or grafting, using a more disease-resistant root system. If your tree becomes root bound you can prune the roots to keep the height controlled. Lemon trees should be set slightly higher than ground.