An early-blooming lilac with full, double, rose-pink flowers that are richly fragrant. 'Sweetheart' is a vigorous grower with excellent cold hardiness, ideal as a specimen or in a flowering hedge.
| Shrub | |
| Syringa | |
| Lilac | |
| Zone 3 | |
| 6+ hours | |
| Moist, well-drained soil | |
| 8-10' | |
| 6-8' | |
| Yes | |
| Yes | |
| Yes | |
| Yes | |
| Yes | |
| Viburnum, Philadelphus, Paeonia, Spiraea |