Lilac

Syringa meyeri ‘Palibin’ Easily grown in average, dry to medium, well-drained soil in full sun. Tolerates light shade, but best bloom is in full sun. Prefers organically rich, moist, slightly acidic to slightly alkaline soils. Needs good air circulation. Good tolerance for urban conditions. Prompt removal of faded flower panicles before seed set will increase the bloom in the following year. Prune as needed immediately after flowering. 

The Missouri Botanical Garden Plant Finder:

Look up, view a photo and read about the over 6,800 plants which are growing or have been grown in the Kemper Center display gardens (plus selected additions) by scientific name, common name and/or selected plant characteristics.