We have been growing the reliable small shrub for over 10 years, and Polygala chamaebuxus grandiflora is also known as ‘Fairy Lights’ and it never fails to reward us with flowers from mid winter right through spring.
Also known as shrubby milkwort, and box-leafed milkwort’ it is listed as Polygala chamaebuxus ssp. grandiflora as well as simply P. chamaebuxus grandiflora, no matter the name it is a great little plant.
This is an excellent low growing evergreen perennial for the rock garden, garden border, small hgarden or container. And its one of tyhe best winter flowering shrubs for shade.
Flowering from winter into spring and summer with wonderful purple to pink and yellow flowers, this is a plant that does appreciate a little protection from the afternoon sun.
Main flowering period is in spring, with a little care, fertiliser and water, it may put on a second flush of flowers in summer. Sometimes called the Box Leafed Milkwort, it comes from the mountains and does prefer a slightly acidic soil.
Not widely offered in nurseries, we love this little plant, colourful and easy care it could also be grown in a container where its brightly coloured flowers will liven up any area. We use it at the front of the garden border,
How To Grow Polygala chamaebuxus grandiflora – Basic Care
Add a splash of enchanting colour to your garden with Polygala chamaebuxus ‘Fairy Lights’, a low-growing, evergreen shrub with vibrant purple and yellow pea-like flowers. Here’s how to keep it thriving:
Position / Sun
‘Fairy Lights’ enjoys a sheltered position with dappled shade or gentle morning sun. It’s perfect for woodland gardens or planted beneath taller shrubs, where it’s protected from intense afternoon heat.
Soil
Plant in well-drained soil enriched with organic matter. A slightly acidic to neutral pH is ideal. Avoid heavy clay or waterlogged areas, as good drainage is essential for root health.
Watering
Water regularly during the first growing season to help establish strong roots. Once settled, it’s moderately water-wise—let the topsoil dry out between waterings to prevent overwatering.
Fertiliser
Feed in spring with a balanced, slow-release fertiliser. Avoid high-nitrogen products, which can reduce flowering. A gentle organic compost or seaweed tonic supports healthy growth and blooming.
Pruning
This is a very low maintenance plant. After flowering, lightly prune to maintain its neat, compact shape. Remove any leggy or dead growth. Avoid cutting into old wood—this plant prefers gentle shaping over hard pruning.
Frost Tolerance
Hardy to light frosts. While mature plants can tolerate brief cold snaps, young specimens benefit from protection during harsh winter conditions. Use mulch or frost cloth as needed.
Drought Tolerance
Once established, ‘Fairy Lights’ copes well with short dry periods. Mulch to retain soil moisture, especially in summer. Regular watering is important during extended heat or flowering seasons.
Propagation
Propagation is easy, best from cuttings taken in summer.
As for Polygala chamaebuxus grandiflora nana, no such plant, the species is a dwarf already. And Polygala myrtifolia ‘Grandiflora is a different plant altogether.
