Spring and fall are the best seasons for planting container grown trees and shrubs in your yard. Plants grown in containers are generally available only during the growing seasons, but they benefit from time to get established before the weather becomes too hot or cold.
Container grown trees and shrubs do best if you take the time to plant them correctly, so a few extra minutes spent planting can result in carefree plants for years to come.
Read on for step-by-step instructions on how to plant container grown trees or shrubs in your yard.
Step 1: Choosing Container Grown Trees and Shrubs
The best way to ensure success when planting container grown trees or shrubs is by choosing plants that are compatible with your climate. Before purchasing, you should:
- Planting Conditions: Take note of the light, water, temperatures, and air circulation in the planting area. Choose plants suited for the growing conditions.
- Test Soil: Do a soil test to see if your soil needs pH or nutrient adjustment. You can do a little adjusting to fit your plants, but you’ll have better luck if you choose plants suited for your conditions.
- Soil Drainage: Determine how well your soil drains. Some trees and shrubs don’t like soggy roots while others hate drying out.
Step 2: Tools and Materials Needed for Planting
To plant container grown trees and shrubs, you’ll need:
- Shovel and/or mattock
- Sharp, sterile knife
- Gardening gloves
- Hose or watering can
- Organic soil conditioner (about half a bag per plant)
- A source of phosphorus (such as bone meal)
- Trees or shrubs
Step 3: Mark Locations for Trees and Shrubs
- Position Plants: Put plants where they will go while they’re still in the containers. Work out the correct spacing and distribution before you start digging, making sure each plant will have room to spread out to its mature size without rubbing against structures or other plants.
- Mark Plant Location: Take a shovel or mattock and mark a circle in the soil, at least three times the diameter of the pot, for the border of each planting hole. You can also use flags, marking paint, or other markers if desired.
- Remove Plants: Move the plants off to the side, preferably in the shade.
Step 4: Dig Planting Holes for Trees and Shrubs
The planting hole is the most important part! A wide planting hole encourages the roots to spread out and establish themselves faster.
- Dig Hole: Your planting hole should be slightly shallower than the root ball, but at least three times as wide. The roots should rest on solid ground to keep the plant from sinking, with the top of the root ball about an inch above the soil level.
- Enlarge Hole: If you’re ambitious, you can dig deeper around the edges, leaving a solid mound in the center of the hole for the root ball to rest on. If your soil is compacted, make sure to rough up the sides of the hole, so it doesn’t glaze over and act like a big clay container.
Step 5: Prepare Trees and Shrubs for Planting
- Remove Container: Gently lay the plant on its side and remove the container. Be very careful not to break any stems or to yank too hard on any part of the plant. If it’s stuck, you may need to squeeze or pound the container a little to work it loose, or cut the container into pieces.
- Loosen Roots: Use a sharp, sterile knife to gently cut any roots that are circling or matted. Circling roots have a tendency to keep growing in a circle instead of branching out.
- Keep Root Ball Intact: Don’t loosen or break apart the root ball itself! The idea is to keep the root ball intact, with some careful slices to encourage branching.
- Position Plant in Hole: Place each tree or shrub in the planting hole, then stand back and take a close look. Make sure the plant is straight, at the correct spacing and depth, and turned the direction you prefer it to face.
Step 6: Fill Holes Around Trees and Shrubs
- Add Dirt to Holes: Backfill the dirt around the plants in stages, taking time to tamp down each layer.
- Add Soil Amendments: Incorporate a few shovelfuls of soil conditioner and a sprinkling of bone meal in with the soil. Don’t overdo it, as plants grow best when the surrounding soil is similar to the landscape soil.
- Fill Holes: When backfilling the holes, don’t pile dirt on top of the root ball. Instead, keep it the same depth, or slightly shallower, than it was in the pot.
- Mound Soil: Use extra soil to make a small donut-shaped mound around your plant, to help hold water. If your plants are on a slope, you can also use excess soil to make a small barrier to slow runoff.
Step 7: Water and Adjust Soil Around Trees and Shrubs
- Watering Plants: Water newly planted container grown trees or shrubs thoroughly, allowing time for the water to soak in completely.
- Add Soil: The soil will sink a little as air pockets collapse, so recheck your plants regularly and fill any low spots.
Step 8: Mulch Around Trees and Shrubs
- Apply Mulch: Add a light layer of mulch to protect your newly planted trees or shrubs. Usually a 2”- 4” layer of mulch is plenty.
- Position Mulch: Don’t pile mulch around the stem or trunk, as it can cause rotting and disease.
Step 9: After Planting Care for Trees and Shrubs
- Watering New Plants: Give your trees and shrubs extra water until established. Water new plants at least once a week for the first 5-6 weeks, then gradually cut back to every 2-3 weeks once there are signs (such as new leaf growth) they’re becoming established.
- Watering Established Plants: By the following year, your plants should be ready to handle normal growing conditions, with perhaps some extra water during dry periods.
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