Can I Plant Fruit Trees over a Leach Field?

Leach fields are an essential component of your septic system. When you flush the toilet, take a shower, or wash your dishes, the wastewater goes into the septic tank. The solid waste settles at the bottom of the tank, while the liquid waste flows out of the tank and into a leach field. The leach field then breaks down the wastewater, filters it, and returns it to the groundwater system. But can you plant fruit trees over a leach field? The answer is not straightforward, let's explore more.

Factors to Consider

Before planting a fruit tree over a leach field, you have to consider several factors that affect the health of the trees and the effectiveness of the leach field. Here are some of the factors to keep in mind:

Root depth: Different fruit trees have different root depths. Some trees have shallow roots, while others have deep roots. You have to plant a tree with shallow roots to avoid damaging the leach field.

Water usage: Fruit trees require a lot of water to grow. If you plant a tree that requires too much water, it may overload the leach field and cause it to fail.

Nutrient requirements: Fruit trees need nutrients to grow and be healthy. If the leach field cannot provide the required nutrients, the trees may wither and die.

Root system density: Some fruit tree varieties have dense root systems that can damage leach fields. Therefore, you must choose a variety that has a less dense root system.

Options for Planting Fruit Trees over a Leach Field

After considering the factors above, you have several options for planting fruit trees over a leach field:

Choose the right fruit tree: As we have seen, not all fruit trees are suitable for planting over a leach field. You should select a tree with shallow roots, moderate water usage, and low nutrient requirements. Examples of such trees include apple trees, cherry trees, and pear trees.

Plant trees in raised beds: If you are unsure about planting fruit trees directly over the leach field, consider planting them in raised beds. The raised bed should be at least 18 inches above the leach field. It should also be lined to prevent the roots from penetrating the leach field. You can then fill the bed with suitable soil, such as loamy soil that drains well.

Plant trees in containers: Another option is to plant the fruit trees in containers. You can use large containers such as half barrels or large pots. The advantage of planting in containers is that you can move the trees around to enjoy the sun, and you don't have to worry about damaging the leach field.

Maintenance Tips

Once you have planted the fruit trees, here are some tips to keep them healthy:

Water the trees sensibly: Fruit trees require water to grow, but you should water them sensibly to avoid overloading the leach field. Water the trees slowly and deeply to encourage deep root growth. Avoid watering frequently but instead, water only when the soil is dry to the touch.

Fertilize the trees correctly: Fertilizer adds essential nutrients to the trees, but you should use it sparingly. Excessive fertilizer can damage the leach field. Use slow-release organic fertilizers at the recommended dosage to prevent damage.

Prune the trees correctly: Pruning is crucial to keep the trees healthy and productive. When pruning, avoid damaging the roots and keep the tree's height and width in check.

Monitor tree growth: Keep an eye out for signs of tree stress or disease. If you notice anything unusual, consult with an arborist for advice.

Conclusion

Planting fruit trees over a leach field can be done, provided you follow the guidelines given above. Choose the right fruit tree, plant trees in raised beds or containers, and maintain the trees correctly. Remember, a healthy fruit tree enhances the aesthetic beauty of your yard and contributes to the environment.