Lilac
Syringa vulgaris
📖 About this plant
One of the most fragrant and beloved flowering shrubs, lilacs produce dense clusters of intensely fragrant flowers in shades of purple, lavender, blue, pink, magenta, white, and creamy yellow. The iconic scent of lilac in bloom signals the arrival of late spring. Lilacs are extremely long-lived plants that can survive for over a century. They require cold winters (chill hours) to set flower buds properly.
🧑🌾 Care requirements
Full sun (6+ hrs)
Every 1-2 weeks
Moderate (40-60%)
5-25°C
Well-draining loam with good organic matter; pH 6.5-7.5 (neutral to slightly alkaline). Tolerates clay soil if well-drained
Balanced fertilizer in early spring before new growth; annual top-dressing with compost; avoid high-nitrogen fertilizers which promote foliage at the expense of flowers
🌐 Common Names
📋 Plant facts
- 🌍 Origin
- Southeastern Europe (Balkans), western Asia
- 📏 Max height
- 2-6 m depending on variety
- 📐 Spread
- 180-300 cm
- 🕰️ Bloom time
- Spring
- 🎨 Bloom color
- Purple, Pink, White
- 🍃 Foliage color
- Dark Green
- ⏳ Lifespan
- Perennial
- 📈 Growth rate
- Moderate
- ☠️ Toxicity
- Non-toxic to humans and pets; flowers and leaves are safe. Mildly toxic only if very large quantities of bark or leaves are consumed (vomiting, diarrhea)
- 🌱 Propagation
- Take softwood cuttings in late spring under mist (4-6 weeks to root); layer low branches in spring; dig and transplant suckers in early spring; named cultivars are often grafted
🛡️ Health & Safety
Non-toxic to humans and pets; flowers and leaves are safe. Mildly toxic only if very large quantities of bark or leaves are consumed (vomiting, diarrhea)
Common issues
- Powdery mildew on leaves by late summer
- Lilac borer larvae in stems
- Failure to bloom from improper pruning (prune after flowering, not before)
- Bacterial blight on new growth in wet springs
💡 Care tips
- Incredibly fragrant spring blooms define the season
- Requires cold winters to set flower buds properly
- Prune immediately after flowering before next year's buds form
- Plant in well-drained slightly alkaline soil for best results
