Protected Series:
Zone: 4CONGO FRENCH COMMON LILAC
Syringa vulgaris 'Congo' is commonly referred to as Congo Common Lilac. It is a upright, deciduous shrub with glossy green, heart-shaped leaves and reddish-purple upright flower panicles in late spring or early summer. It is a heavy blooming variety with heavily scented flowers that are ideal for cutting. When pruning, prune immediately after flowering as the following years' buds are produced by midsummer.
Congo Common Lilac is deer resistant and thrives in full sun in rich, fertile, sandy, evenly moist, well-drained soils.
| PLANT | SIZE | TYPE | GALENA | ADD'L | DIG | SOON |
| SYRINGA VUL CONGO | con 5 | 10 | 0 | 0 | 0 | |
| SYRINGA VUL CONGO | con 10 | 0 | 0 | 0 | 7 |
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To help this plant settle in and thrive, we recommend these standard planting practices: choose a location with full sun and well-draining soil, ensuring the site is open enough to allow for good airflow, which keeps the foliage of this vigorous grower healthy. 'Congo' is widely considered one of the best dark-flowering lilacs, but it needs this sunlight and drainage to prevent root issues. Apply a balanced, slow-release fertilizer in early spring to encourage healthy growth. As with all vulgaris types, flower buds are set on old wood, so never prune in the late winter or early spring; wait until the plant has finished blooming to perform any necessary deadheading or shaping.
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