Buzz
When creating a flower bed around a tree trunk, it's crucial to protect the tree by following a few simple guidelines. These include designing the flower bed layout, carefully applying topsoil, and avoiding damage to the tree roots during planting. Next, select plants that suit the climate of your area and specific shade requirements. Finally, learn how to plant and maintain the garden by regularly watering and caring for the plants.
Steps
Choosing Plants
Select plants that are suitable for the sunlight and shade levels of the intended planting location. First, determine how much sunlight the planting area receives. Observe your garden throughout the day and calculate how shade and sunlight change across different seasons. When purchasing plants, review their descriptions to understand their light requirements.
- Full sun areas receive direct sunlight for 6 or more hours daily during the growing season. If your garden falls into this category, you’ll have a wide variety of plant options.
- Partial sun areas receive sunlight from sunrise to midday. Morning sunlight is less intense than afternoon sunlight, hence the term 'partial sun.'
- Partial shade areas receive sunlight from 3 PM until sunset. These areas may also include spots with dappled or filtered sunlight throughout the day.
- Full shade areas are located on the north side of buildings or under dense tree canopies, where no direct sunlight reaches. Although options are limited, you can still find beautiful and suitable plants to create a stunning flower bed.
Consider the maximum size of the plants you intend to grow. Ensure that even at full growth, the plants fit well under the tree's canopy and within the surrounding space. Opt for small and low-growing plants to place under wooden trees. Taller plants might block sunlight from smaller plants below or interfere with the lower branches of the tree.
Select flowers suitable for planting under tall trees. Flowers beneath a tree can create a stunning ground cover. Consider planting clusters of 3-5 different flower varieties or shrubs to add lushness to the bed. Also, think about the climate zone. Ensure the plants are suitable for your region's conditions before purchasing. For instance, if you live in a desert area, many flowers may struggle to thrive during the hot summer months.
Choose shrubs for planting under trees. These plants are low-maintenance and can add diversity to your flower bed. Make sure the shrubs you select are low-growing. Consider the light conditions and climate of your area when choosing shrubs. Shrubs thrive under tall trees as they can survive with minimal sunlight and/or moisture.
Planting and Caring for Flowering Plants
Know the right planting time. Most flowers should be planted after the last spring frost, except for pansies, which are hardier and can withstand colder temperatures. Other flowers may die if exposed to frost right after planting. Check data on the average last frost date from the previous year or visit plantmap.com for accurate information.
- Some plants grow best when planted at specific times and temperatures, so always read the care instructions. For example, irises thrive when planted in late summer or early fall rather than spring. Visit www.garden.org for detailed care guides for specific plants.
- When purchasing plants, note that annuals live for one season, while perennials last for at least two seasons.
Outline the perimeter for the flower bed. You don’t need to create a physical boundary; simply determine the area where the flower bed will be planted. Use a shovel to mark the diameter of the planting zone. Remember to keep the flower bed at least 30 cm away from the tree trunk, so 60 cm might be a suitable distance for the outer edge of the bed.
Create a raised garden bed around the tree. Avoid digging around the tree to prevent damaging its roots. Instead, add soil to form a raised bed around the tree, or use bricks or logs to define the outer edge of the bed.
- Ensure the bed is deep enough to accommodate the plants you intend to grow.
Carefully remove the plant from its pot. If the pot contains a cluster of flowers, gently push the bottom of the pot and lift the plant out. Loosen any roots stuck to the pot’s base. For potted plants, place your hand over the soil surface and tip the plant into your palm.
Loosen the plant’s roots. Take the root ball out and gently separate the outer roots. Avoid leaving the roots tightly bound. Loosening the roots slightly helps them adapt and grow more easily in the new soil.
Place the plant in the hole and cover it with soil. Gently position the plant in the hole and fill it with fresh soil. Use your hands to firm the soil around the base of the plant. Your flower is now mostly set—continue planting the remaining shrubs and flowers, then water them.
- Always lift the plant by its roots, not the stem.
Allow space for plants to grow and regularly weed the flower bed. Avoid planting shrubs or flowers too close together. Research how large the plants will grow and consider the desired density of the flower bed. Leave a gap of 5 cm to 7.5 cm between each plant. Additionally, maintain the flower bed by regularly removing weeds. Pull out any weeds growing around the plants by their roots. If weeds are left unchecked, they will compete with the plants for nutrients.
- Schedule regular weeding sessions for the flower bed.
Water the newly planted flower bed thoroughly. Regular watering is essential after planting. The plants will need more water as their newly established roots compete with the roots of taller trees. Create a schedule to monitor watering and plan the next watering session.
Add 2.5 cm of organic matter to the garden each year. You can incorporate organic matter or suitable topsoil for the type of plants, whether annuals or perennials. Organic matter is crucial because the bacteria and fungi in it provide essential nutrients for the plants. You can create your own compost using kitchen scraps, trimmed plant parts, leaves, or manure to supply the necessary nutrients for healthy plant growth over the years.
Protecting the Tall Tree
Leave a 2.5 cm gap between the tree base and the mulch. Apply mulch about 2.5 cm away from the tree trunk and plant the flower bed at least 30 cm from the tree. Start planting from that distance outward. Ensure the bark at the tree's base and exposed roots are not covered. Avoid creating a raised bed around the tree trunk. The exposed roots need oxygen, and if covered, they may eventually rot.
Prune low-hanging branches. Allow as much light as possible to reach the flower bed. Use pruning shears to trim small, low branches. Remember that at least two-thirds of the tree's height should retain its branches, so never remove more than one-third of the living branches.
- Pruning shears can be purchased at hardware stores.
- Only cut branches with a diameter smaller than 5 cm.
- Trim small V-shaped branches and avoid cutting healthy U-shaped ones.
- For small branches, cut about 0.6 cm above the bud. For larger branches, cut just outside the raised collar on the tree trunk.
Understand the central tree species. Depending on the type of tree in the center, carefully plan the number of plants to grow beneath it. Consider which plants are suitable for planting under the tree. If the tree is sensitive, opt for a few smaller plants rather than a dense bed. Additionally, choose plants that can thrive for several years, allowing the tree to gradually adapt to the new additions.
- Be cautious when planting under the following trees, as they are sensitive to root disturbance:
- Beech
- Black oak
- Buckeye
- Cherry and plum
- Dogwood
- Hemlock
- Linden
- Magnolia
- Pine
- Red oak
- Scarlet oak
- Sugar maple
