How to Plant Groundcoverings Under a Tree

Planting groundcoverings under a tree can add beauty and prevent weeds from growing. Additionally, groundcoverings can help retain moisture and nutrients in the soil, leading to healthier trees. However, it is essential to choose the right kind of groundcovers that flourish in the conditions present under the tree. Here are some steps to plant groundcoverings under a tree.

Step 1: Assess the Site Conditions

Before planting any groundcoverings, it is vital to evaluate the site conditions. Trees typically have dense foliage that blocks sunlight, which makes it challenging for certain plants to grow. Consider the following conditions that may affect your planting choices:

Amount of sunlight that penetrates through the tree canopy

Soil type, moisture and pH

Tree species

Step 2: Choose the Right Groundcovers

Choosing the right groundcovers is key to the success of planting under trees. Here are some of the most suitable options:

Periwinkle (Vinca Minor): Provides green foliage, and purple flowers in early spring. It thrives in shade and is easy to grow.

Japanese Spurge (Pachysandra terminalis): Grows in dense shade and retains moisture in the soil, leading to healthier trees.

Ajuga Reptans: A low, spreading plant that thrives in partial shade or full shade, with blue or purple flowers in late spring.

Coral Bells (Heuchera): Grows well in dense shade and provides unique foliage in shades of green, purple or pink. It also adds color to the area with its small flowers.

Wild Ginger (Asarum canadense): A native plant that thrives in moist, shady conditions. Wild Ginger offers green foliage and reddish-brown flowers.

Step 3: Prepare the Soil

Before planting groundcoverings, it is essential to prepare the soil to give them a good start. Start by removing the existing vegetation and smooth the soil surface. Incorporate organic matter, such as compost, into the soil to improve drainage and nutrient content. Avoid soil compaction, which can restrict the growth of the roots and soil organisms.

Step 4: Plant the Groundcovers

Once the soil is ready, plant the groundcovers in the prepared area. Follow these guidelines for successful planting:

Plant no deeper than the root ball or plug.

Ensure the plant is positioned straight and upright.

Space the plants according to their mature size, so they fill in but do not overcrowd the area.

Place mulch around the plants to conserve moisture and suppress weed growth. But keep the mulch three to four inches away from the tree's trunk to avoid excess moisture and decay.

After planting, water the groundcovers well to help settle the roots into the soil.

Step 5: Maintain the Groundcovers

Maintaining the groundcovers you have planted is crucial to their survival and growth. Here are some essential maintenance practices to follow:

Ensure the plants receive adequate water during the growing season, especially in the first year after planting.

Divide the plants every few years, depending on their growth rate, to prevent overcrowding and promote good vigor.

Trim overgrowth or dead plant material to keep the groundcovers tidy and robust.

Remove any weeds that emerge, as they can compete with the groundcovers for nutrients and moisture.

In conclusion, planting groundcovers under a tree is an excellent way to beautify the area and promote the health of the tree. By assessing the site conditions, choosing the right groundcovers, preparing the soil, planting correctly, and maintaining the plants, you can have vibrant and thriving groundcovers under your tree!