Solomon’s Seal ( Polygonatum spp.) may eventually require relocation or division to maintain health or propagate new specimens. Understanding the proper techniques for transplanting Solomon’s Seal ensures its successful establishment in a new garden spot.
Optimal Transplanting Time
The most favorable times to transplant Solomon’s Seal are during early spring or in the fall. Early spring is ideal as new growth begins to emerge, but before the plant fully leafs out, minimizing transplant shock. This allows the plant to establish its root system before summer heat. Similarly, fall transplanting is effective after foliage has died back, but before the ground freezes.
Transplanting during these dormant periods reduces stress, as the plant is not actively expending energy on foliage or flower production. The cooler temperatures and increased moisture in both seasons promote root recovery and establishment. While some sources suggest that division can occur at almost any time of year, including summer with proper care, early spring and fall remain the most recommended periods for optimal success. Attempting to transplant during the peak of summer, especially in hot conditions, can lead to significant stress and potential failure, requiring much more diligent watering and monitoring.
Preparing for Transplant
Preparation of the plant and its new site is important. Begin by thoroughly watering the existing plant a day or two before the planned transplant. This hydrates the root ball, making the soil more cohesive and reducing stress during the digging process. For the new location, select an area that offers partial to full shade, preferably with morning or dappled sunlight, as intense afternoon sun can scorch the leaves.
Solomon’s Seal thrives in rich, moist, well-drained soil that is slightly acidic to neutral (pH 5.0 to 7.0). Amend the new planting site generously with organic matter such as compost or well-rotted manure to improve soil fertility and drainage. Dig a hole that is at least twice as wide as the plant’s root ball and of the same depth. This wider hole allows roots to spread into loosened soil, promoting quicker establishment.
How to Transplant
Carefully dig a wide circle around the Solomon’s Seal, capturing as much of the root ball as possible. Dig several inches away from the plant’s base to avoid damaging the rhizomes (underground stems). Gently work a shovel underneath the root ball to lift the entire clump from its original location.
Mature plants can be divided at this stage to create more plants. For division, carefully separate the rhizomes, ensuring each section has at least one bud or a few healthy stems and roots. You can gently pull apart the rhizomes or use a clean, sharp knife for tougher clumps.
Once divided, place each new plant or the original clump into the prepared hole, ensuring the top of the root ball or the crown of the plant is level with or slightly above the surrounding soil surface. Planting too deeply can lead to rot. Backfill the hole with the amended soil, gently firming it around the roots to eliminate air pockets.
Post-Transplant Care
Immediately after transplanting, thoroughly water the Solomon’s Seal to help settle the soil around the roots and ensure good soil-to-root contact. Consistent moisture is important during establishment; water regularly, keeping the soil moist but not waterlogged. Both overwatering and insufficient water can cause stress or root rot.
Applying a 2 to 3-inch layer of organic mulch, such as wood chips or shredded leaves, around the base of the newly transplanted Solomon’s Seal helps retain soil moisture, regulate soil temperature, and suppress weeds. Avoid piling mulch directly against the plant’s stems to prevent moisture buildup and potential rot.
Monitor the plant closely for signs of stress, such as wilting or yellowing leaves. Providing adequate water and shade can help alleviate these symptoms as the plant adjusts.