Vinca, commonly known as periwinkle or creeping myrtle, is a robust evergreen perennial frequently used as a vigorous, low-growing groundcover. Although Vinca is known for its hardiness and ability to thrive in various light and soil conditions, successfully moving an established clump requires a thoughtful approach to minimize the stress of relocation. Careful preparation ensures a healthy start in its new location, mitigating the risk of transplant shock.
Pre-Transplant Preparation and Timing
The optimal window for transplanting Vinca is during periods of mild temperatures, specifically early spring or late fall. Moving the plant during these seasons, when it is either newly emerging from dormancy or entering it, reduces the risk of transplant shock. The cooler weather allows the plant to focus its energy on root establishment rather than sustaining foliage through harsh summer heat or active growth.
Before excavation begins, the new planting site must be fully prepared. Vinca thrives in well-draining soil, so amend the area with organic matter, such as compost, to improve both drainage and fertility. Digging the planting holes beforehand minimizes the time the Vinca roots are exposed to the air. The day before the move, thoroughly water the existing clump to ensure the root system is fully hydrated.
The Excavation and Relocation Process
Vinca has a relatively shallow root system. To begin the excavation, use a sharp spade to cut a generous circle around the clump you intend to move. For established sections, aim for a root ball that is at least 6 to 8 inches in diameter and about 3 inches deep, ensuring the fine feeder roots remain attached and intact.
Carefully work the spade underneath the root ball and lift the section of Vinca, keeping the soil around the roots as undisturbed as possible. The goal is to preserve the connection between the plant and its existing root structure, which absorbs water and nutrients in the new location. Handle the plant by the root ball itself, avoiding pulling on the stems, which can easily snap or tear the delicate root connections.
Place the extracted root ball into the pre-dug hole, ensuring the top surface sits level with the surrounding soil. Planting too deep can cause stem rot, while planting too shallow can expose and dry out the roots. If planting multiple sections, space the clumps approximately 6 to 12 inches apart to allow for rapid spreading and establishment as a continuous groundcover. Immediately after planting, water the newly placed clumps thoroughly to settle the soil and eliminate air pockets.
Post-Transplant Care and Maintenance
Consistent, deep watering is the primary element of post-transplant care for the first four to six weeks. During this period, the plant is re-establishing its root system, requiring the soil to be moist but not saturated. This sustained moisture level encourages new root growth and helps the Vinca overcome initial transplant stress.
Monitoring the plant for signs of stress, such as wilting or yellowing foliage, is important in the weeks following the move. Applying a thin layer of mulch, like shredded bark, around the transplanted sections helps the soil retain moisture and moderates soil temperature fluctuations. Ensure the mulch does not directly touch the plant stems, as this can trap excess moisture and lead to fungal issues.
Delay heavy fertilization immediately after transplanting, as the high salt content in many fertilizers can further stress recovering roots. Wait until the Vinca begins to show noticeable signs of new, healthy growth before applying a balanced, slow-release fertilizer. This waiting period allows the roots to fully recover and prepare to absorb nutrients effectively.