Planting Hostas Under Trees: A Guide

Why Plant Hostas Under Trees?

If you're looking for a way to spruce up your garden, planting hostas under trees can be a great option. Not only do they add color and texture, but they also thrive in shady conditions, which makes them perfect for growing under trees. However, planting hostas under trees can be a bit tricky, as there are a few things you need to keep in mind in order to make sure your hostas thrive. In this guide, we'll go over everything you need to know about planting hostas under trees.

Choosing the Right Hostas

When it comes to planting hostas under trees, it's important to choose the right types of hostas. Some hostas thrive better in shade than others, so you'll want to pick varieties that will do well in low-light conditions. Some popular options include 'Sum and Substance,' 'Royal Standard,' and 'Gold Standard.' These hostas have large leaves and can add a lot of interest to your garden.

Consider Leaf Color and Size

When choosing hostas, you'll also want to consider the color and size of their leaves. Hostas come in many different shades of green, as well as blue, yellow, and white. You may want to choose hostas that have leaves that complement the colors of your other plants or flowers. You'll also want to consider the size of the leaves, as larger leaves can create a more dramatic effect.

Planting Hostas in Clumps

One way to create a visually appealing garden is to plant hostas in clumps. Rather than planting them individually, group several hostas together to create a more dramatic effect. This can also help to fill out empty spaces in your garden.

Preparing the Soil

Before planting your hostas, it's important to prepare the soil properly. Hostas prefer well-drained soil that is rich in organic matter. You'll want to add plenty of compost or other organic material to the soil before planting.

Test the Soil pH

You may also want to test the pH level of your soil before planting. Hostas prefer soil that is slightly acidic, with a pH between 6.0 and 7.5. If your soil is too alkaline, you can amend it with sulfur or another acidifying agent.

Planting Depth

When planting hostas under trees, it's important to plant them at the right depth. Hostas should be planted so that the crown of the plant (where the leaves meet the roots) is level with the soil surface. Planting hostas too deep can lead to rot and other problems.

Caring for Your Hostas

Once your hostas are planted, it's important to take good care of them so that they thrive.

Watering

Hostas need regular watering, especially during hot or dry weather. Make sure to water them deeply, so that the soil is moist all the way down to the roots.

Fertilizing

Hostas benefit from regular fertilization. You can use a balanced fertilizer or one that is specifically formulated for hostas. Fertilize once in the spring, and again in midsummer.

Mulching

Mulching around your hostas can help to retain moisture in the soil, suppress weeds, and regulate soil temperature. Use a layer of mulch that is 2-3 inches deep.

Dealing with Pests and Diseases

Hostas are relatively pest-resistant, but they can still fall prey to a few common problems.

Slugs and Snails

Slugs and snails love to munch on hosta leaves. You can deter them by placing copper wire or tape around the base of the plants, or by using slug bait.

Fungal Diseases

Hostas can develop fungal diseases such as anthracnose and crown rot. To prevent these diseases, make sure to plant your hostas in well-drained soil, water them deeply but infrequently, and avoid getting water on the leaves.


Planting hostas under trees can be a great way to add some color and texture to your garden while also making use of the space beneath your trees. By choosing the right hostas, preparing the soil properly, and taking good care of your plants, you can create a beautiful and thriving garden.

FAQs

1. How often should I water my hostas?

You should water your hostas deeply once or twice a week, depending on the weather and soil conditions.

2. Can I plant hostas under any type of tree?

Hostas can be planted under most types of trees, but they do best under trees that provide partial shade.

3. Do hostas need a lot of sunlight?

No, hostas thrive in shady conditions and do not require a lot of direct sunlight.

4. How do I know if my soil is well-drained?

Well-drained soil should feel moist but not soggy. If water pools on the surface or the soil feels squishy, it may be poorly drained.

5. Can hostas grow in containers?

Yes, hostas can be grown in containers as long as they have enough space and are planted in well-drained soil.