The root system of a lemon tree is extensive and can grow in many directions – both up and down. At times, these roots can cause structural damage due to their underground nature. When roots start to encroach on walkways, buildings and other surfaces, they can cause significant damage, which can be costly to repair. Here, we’ll discuss common issues with lemon tree roots, and provide tips for preventing damage in the future.
Lemon tree roots are wide-reaching and strong. When wet, the roots can expand greatly, sometimes to twice their original size when dry. This increased root volume can cause problems for structures, as the roots have greater potential to gain purchase in the soil and push buildings and other surfaces out of its way.
The effects of a root system on the ground can be further exacerbated in the presence of loose or wet soil. When soil isn’t sturdy enough or is especially water-retentive (or both), the roots can easily penetrate and cause surface corrosion or even underground fortification. This may require additional support, such as underpinning, which is costly and time-consuming.
Root damage can be distressing, especially if it’s not discovered immediately. While some damage can be repaired, others may require a full structural replacement. The costs associated with this repair can easily run into the thousands, making it essential to address root damage as soon as possible.
Fortunately, avoiding these issues is relatively simple. Before planting citrus trees, assess the localized soil and determine if additional foundations or barriers may need to be in place. Additionally, it may be wise to plant root barriers, either below or around the tree to mitigate damage to nearby surfaces.
Root System Size
The size of a lemon tree’s root system depends on various factors, including the amount of water the tree receives. The more water the tree takes in, the more it will need to send its roots out looking for sustenance. Additionally, the size of the root system usually depends on the age and size of the tree itself – larger trees tend to have deeper and wider-reaching root systems.
It’s also important to note that the root system of a lemon tree can extend far beyond its canopy. A lemon tree’s root system can easily spread out several times the width of its canopy, making it necessary to consider this when looking for a suitable location for planting it.
Identifying Root System Damage
It’s not always easy to identify when and how tree roots have caused damage, as most of the root system is hidden underground. To properly identify and locate root system damage, you’ll need to look for visible signs, such as cracked or lifted paving, depressed or congested surfaces, or water buildup in a particular area.
Other signs of root system damage can include clogged drains, the emergence of new or uncharacteristic plants around a particular area, and sudden changes in soil grade or structural stability.
In some cases, the obvious signs of root system damage may not be visible for a long time, so it’s always a good idea to be aware of the potential symptomatic warning signs. If you suspect root system damage, contact an experienced contractor who will be able to investigate and remediate the issue.
Remedying Root System Damage
Repairing and mitigating root-caused damage can range from the simple and minor to more structural and costly. Depending on the level of damage, you may need to replace a certain portion of structures, and even strengthen or underpin existing foundations to improve stability.
It’s not always possible to treat root system damage once it’s discovered, as damage can be extensive and costly. To avoid this, ensure that you’ve determined the best position for planting a lemon tree, as well as any additional precautions that may need to be taken, such as preventative root barriers.
This is much easier than attempting to repair existing damage, which can be problematic and expensive. Consider hiring an arborist or a certified professional to properly assess your tree and provide the best advice for preventing root system damage.
Lemon Tree Nutrient Requirements
In addition to avoiding root system damage, it’s also important to make sure that lemon trees have sufficient nutrients to thrive. Most lemon trees require some form of fertilization for optimal growth. A balanced fertilization plan should include nitrogen, potassium and phosphorous, as well as other micronutrients.
Nitrogen, in particular, is especially important for citrus tree nutrition and growth. It’s the primary part of most fertilizers and is significant for the healthy growth of leaves, stems and flowers. Additionally, potassium helps to promote healthy root growth, while phosphorous helps with flowering and fruiting.
It’s important to consider the soil type of your lemon tree’s location when deciding which fertilizer to use. If you’re not sure which to use, consult a local arborist or certified plant nutritionist.
Assessing the Soil PH
To ensure proper nutrition and growth, it’s also essential to determine the soil pH levels of your lemon tree’s location. Optimal soil pH levels for lemon trees is usually between 6.5 and 7.5. Anything higher or lower can affect the tree’s ability to absorb proper nutrition, leading to stunted growth.
The soil pH can be tested with a pH test kit, and the soil should also be supplemented as necessary with fertilizers and other nutrient sources. A soil test can be performed once every two years to ensure optimal growth.
Protecting Against Insect Infestations
In addition to tending to the soil and rooting system, it’s also important to protect your lemon tree from insect infestations. Some pests, such as aphids, spider mites and thrips, can significantly damage and stunt the growth of your lemon tree, as well as cause nutritional deficiencies by stealing the tree’s food.
Monitor your tree for any signs of insect infestations, and make sure to use insecticides and other pest control treatments as necessary. Organic solutions, such as neem oil, can also be used, though you should always read the labeling and follow the manufacturer’s guidelines to ensure that the treatment is safe.
Checking For Diseases
Lemon trees are susceptible to several types of fungal, bacterial and viral infections, which can cause stunted growth, leaf discoloration and other health issues. Regularly check your tree for signs of disease, such as leaf discoloration, discolored spots on the bark or rotten fruit, and take necessary action if any of these issues are found.
If you’re not sure how to treat the infection, it’s best to seek the advice of a qualified arborist or horticulturalist who can provide a tailored solution for your lemon tree. Additionally, certain steps can be taken to avoid fungal and bacterial infections, such as avoiding the introduction of infected materials into the local ecosystem.
Conclusion
Lemon tree roots can cause significant damage to surfaces and foundations, which can be costly and time-consuming to fix. To avoid this, plant with root barriers, preventative foundations and other provisions, and regularly assess your tree for damage. Additionally, make sure to attend to the tree’s nutrient requirements, as well as its soil pH, and inspect the tree regularly for any signs of insect infestations or diseases. Doing this will ensure that your lemon tree remains healthy and vibrant.
