Siberian Burgloss Roots

Fast Facts

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About Siberian Burgloss

Siberian bugloss (Brunnera macrophylla) is a perennial cherished for bringing striking foliage and delicate sky-blue flowers to the shade garden. Also known as heartleaf brunnera and false forget-me-not,  Siberian bugloss is tolerant of a wide range of growing conditions and thrives in shaded areas where other plants struggle to survive. Needing little care and virtually pest free, this ground cover brings color to shady woodland borders and containers. Pair with complementary shade-loving plants like hostas, ferns, or astilbes for a layered, woodland-inspired garden.

When to Plant Siberian Burgloss Roots

Plant in spring when all danger of frost has passed and the soil can be worked.

Where to Plant Siberian Burgloss Roots

Select a location that provides partial to full shade. Morning sun is acceptable, but protect the plant from harsh afternoon sunlight to prevent leaf scorch. This plant thrives in moist, well-drained soil that is rich in organic matter. A slightly acidic to neutral pH (6.0 to 7.0) is ideal. If you’re unsure about your soil’s pH, use a soil test kit. Adjust pH if needed using lime to raise pH, or sulfur to lower pH.

Water the soil thoroughly a day before planting to create a moist but not soggy environment for the roots. Ensure the planting site is not prone to waterlogging, as overly wet conditions can lead to root rot.

How to Plant Siberian Burgloss Roots

Loosen the soil to a depth of 8 to 12 inches and mix in compost or aged manure to enrich the soil and improve drainage. Create a hole about two to three inches deep and wide enough to accommodate the spread of the roots. A good rule of thumb is to plant the roots just below the soil surface. Place the roots horizontally in the hole with any growth points, the buds or “eyes”, facing upward. Spread them out gently to avoid tangling.

Backfill the hole with soil, pressing gently to remove air pockets. Do not bury the roots too deeply; the top of the root system should be just below the surface. Water the planted roots immediately to settle the soil and encourage contact between the roots and the surrounding soil. Add more soil if necessary.

If planting multiple roots, ensure adequate spacing of 18 to 24 inches apart to allow for proper air circulation, which reduces the risk of fungal diseases.

You should expect new growth within four to six weeks.

How to Care for Siberian Burgloss

Maintain consistent soil moisture, especially during the first few weeks as the roots establish. Do not allow the soil to dry out completely, but also avoid overwatering, as this can lead to root rot. Keep an eye out for slugs and snails, which may chew on the leaves. Use organic pest control methods, such as copper tape or diatomaceous earth, if needed.

Every three to four years, divide the clumps to prevent overcrowding and rejuvenate the plant.

Once the foliage dies back in late fall, cut it down and apply a fresh layer of mulch for winter protection.

Companion Plants

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