The Botanical Diary
B
Shrubs

Billard's Spirea

Spiraea × billardii

Can produce root suckers and spread extensively—boundaries should be monitored.

Regions
all regions
Colour
Pink
Billard's Spirea
🌸
Bloom
June–August
☀️
Light
Full sun / напівтінь
💧
Watering
Moderate
📏
Height
1,5–2 m
❄️
Hardiness
Zone 4а

Billard's Spirea is one of the most beloved garden shrubs of the temperate zone, captivating gardeners with its simplicity and tireless flowering. This hybrid was developed in Europe during the nineteenth century, combining the finest qualities of its parent species. In a short time, Billard's Spirea became a favourite among gardeners worldwide thanks to its adaptability and ornamental value.

The shrub grows in a compact form with delicate, lacy foliage reminiscent of maple leaves—hence its name. From June to August, the branches are clothed with dense, spike-like flower clusters of soft pink—a truly enchanting sight. The flowers readily attract bees and butterflies, transforming the shrub into a genuine magnet for pollinators. There are cultivars with more saturated pink colouration that appear even more striking against the green garden backdrop.

In the garden, Billard's Spirea is a versatile plant. It works beautifully in hedgerows, group plantings, near gates, or along pathways. It neighbours well with hydrangeas, bee balm, and phlox, creating harmonious colourful compositions for the summer garden. Undemanding in care, the spirea thrives on moderate watering and requires virtually no special feeding.

Its one quirky characteristic is a tendency to spread by root suckers. If this process remains uncontrolled, the shrub will gradually encroach upon neighbouring plants. However, this is easily remedied: simply cut back the shrub once in spring to 20–25 cm above ground, and it will rejuvenate with fresh, vigorous growth. Combined with its undemanding nature and cold hardiness, Billard's Spirea makes an ideal plant for those seeking reliable ornamental value with minimal effort.

Location & soil

Billard's Spirea — planting & location

LightFull sun / напівтінь
Soil typeany, рН 6–7
Planting timeOctober або April
Plant spacing1–1,5 m
Planting depthAt root collar level

Summer-flowering with pink raceme-like flower clusters

Water needs

How to water Billard's Spirea

IntensityModerate
FrequencyEvery 14 days (в)
Volume12–15
MethodAt the base

Drought-tolerant once established

Annual care

Fertilizing and pruning: Billard's Spirea

Spring fertilizingNitrogen (April)
Summer fertilizingPhosphorus-potassium (August)
Autumn fertilizingNo feeding required
Pruning timeApril (радикальна)
Pruning typeРадикальна

Cut back to 20–25 cm from ground level

Cold hardiness

Billard's Spirea — winter hardiness & care

Hardiness zoneZone 4а
Winter coverNot required
Cover timing
Plant protection

Diseases and pests of Billard's Spirea

Diseases
Powdery mildew
Pests
Rarely
Garden design

What grows well with Billard's Spirea?

Hydrangea, монарда, Phlox