Protected Series:
Zone: 2ROYALTY LILAC
Syringa x prestoniae 'Royalty' is a robust, late-blooming lilac that stands out for its deep, intense color and superior performance in cooler climates. Unlike common lilacs that can sometimes struggle with mildew or sparse blooming, 'Royalty' is prized for its tight, upright habit and long, cone-shaped panicles of vibrant, deep purple-red buds that open into rich, reddish-purple florets. Its foliage is broad, dark green, and notably disease-resistant, providing a handsome structural presence even when the plant is not in flower. Because it blooms later than Syringa vulgaris varieties, it is an excellent choice for extending the "lilac season" and avoiding the risk of late spring frost damage to the buds.
To ensure peak performance, 'Royalty' should be sited in a location that receives full sun, which is critical for maximum bud set and disease prevention. It thrives in fertile, neutral to slightly alkaline, well-draining soil; while it is quite adaptable, it dislikes heavy, waterlogged clay, so ensure the planting site is properly amended for drainage. Hardy in USDA Zones 2 through 8, 'Royalty' is exceptionally cold-hardy and requires minimal fuss once established.
| PLANT | SIZE | TYPE | GALENA | ADD'L | DIG | SOON |
| SYRINGA PRE ROYALTY | con 3 | 48 | 0 | 0 | 0 |
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To help this plant settle in and thrive, we recommend these standard planting practices: choose a planting site that receives full sun and features moist, well-drained soil to support its vigorous growth and floriferous display. It is known for blooming about two weeks later than French hybrids, extending the lilac season into early summer. Maintain consistent moisture throughout the summer months and apply a balanced, slow-release fertilizer each spring. Since it sets its flower buds on old wood, do not prune in late winter or early spring; wait until the bloom cycle is complete in June to perform any deadheading or size control.
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