The Satomi Dogwood (Cornuskousa′Satomi′), with its stunning pink to reddish-pink bracts, offers a captivating display in any garden. Unlike its North American cousin, the Kousa Dogwood, it blooms later in the season (typically late spring to early summer), adding a splash of color when many other flowering trees are past their prime. If you’re looking to add this elegant specimen to your landscape, here are some essential tips for successful planting.
1. Choosing the Right Location
Selecting the ideal spot is paramount for your Satomi Dogwood’s health and vigorous growth.
- Sunlight: Satomi Dogwood thrives in full sun to partial shade. In hotter climates, some afternoon shade can help protect the leaves from scorching. Aim for at least 4-6 hours of direct sunlight daily for the best flowering.
- Soil: These dogwoods prefer well-drained, acidic to neutral soil (pH 5.5 to 6.5). Avoid heavy clay soils that retain too much water, as this can lead to root rot. If your soil is heavy, amend it with organic matter like compost, peat moss, or well-rotted leaf mold to improve drainage and aeration.
- Space: Consider the mature size of the Satomi Dogwood. It typically grows to be 15-20 feet tall and wide, forming a beautiful vase-shaped habit. Ensure it has enough space to spread without crowding other plants or structures.
2. When to Plant
The best time to plant Satomi Dogwood is in early spring or early fall.
- Spring Planting: This allows the tree to establish its root system before the stress of summer heat.
- Fall Planting: Planting in the fall gives the tree a chance to settle in during the cooler, moister months, promoting root growth before winter dormancy. Avoid planting in the heat of summer or when the ground is frozen.
3. Planting Procedure
Once you’ve chosen your location and are ready to plant, follow these steps for success:
- Dig the Hole: Dig a hole that is at least two to three times wider than the root ball and just as deep. The top of the root ball should be level with or slightly above the surrounding soil, as planting too deep can suffocate the roots.
- Prepare the Tree: Carefully remove the tree from its container. If the roots are circling the pot or appear matted, gently tease them apart with your fingers or make a few vertical cuts with a clean knife to encourage outward growth. For balled-and-burlapped trees, remove any wires or twine from around the trunk and pull back the burlap from the top of the root ball.
- Position the Tree: Place the tree in the center of the hole, ensuring it is straight. Backfill the hole with the excavated soil, gently tamping it down to remove large air pockets. Do not press too firmly, as this can compact the soil.
- Water Thoroughly: After backfilling, water the tree deeply to settle the soil around the roots. This also helps eliminate any remaining air pockets.
- Mulch: Apply a 2-4 inch layer of organic mulch (such as wood chips, shredded bark, or compost) around the base of the tree, keeping it a few inches away from the trunk. Mulch helps retain soil moisture, regulate soil temperature, and suppress weeds.
4. Initial Care and Watering
The first year after planting is crucial for establishment.
- Watering: Consistent watering is key, especially during dry periods. Water deeply and regularly, aiming for about 1 inch of water per week, either from rainfall or irrigation. Check the soil moisture by sticking your finger about 2-3 inches deep – if it feels dry, it’s time to water. Reduce watering as the tree establishes and during cooler months.
- Fertilizing: It’s generally best to avoid fertilizing immediately after planting. Wait until the second growing season, and then use a balanced, slow-release fertilizer formulated for trees and shrubs, following the package directions.
- Staking (If Necessary): Only stake your tree if it’s in a very windy location or if it struggles to stand upright. If you do stake, use broad, flexible ties and remove them after one year to prevent girdling the trunk.
5. Ongoing Care
Once established, Satomi Dogwood is relatively low-maintenance.
- Pruning: Prune in late winter or early spring while the tree is dormant. Remove any dead, damaged, or crossing branches. You can also prune to maintain its shape or control its size.
- Pest and Disease: Satomi Dogwood is generally resistant to many of the common dogwood diseases, including dogwood anthracnose. However, keep an eye out for powdery mildew or leaf spot, especially in humid conditions. Good air circulation and proper watering can help prevent these issues.
By following these tips, you’ll be well on your way to enjoying the magnificent beauty of a healthy and thriving Satomi Dogwood in your yard for years to come. Happy planting!