Dense flat clusters in zoned bicolors with a sweet clove fragrance. Old-fashioned cottage charm that returns reliably.
Mildly toxic to cats and dogs. Chewing it can cause vomiting, and contact can irritate skin, which is worth remembering when a bunch comes indoors.
- Bloom Season
- May to Jul
- USDA Zones
- 3-9
- Sun
- Full Sun or Part Sun
- Water
- Moderate - regular watering
- Mature Height
- 12-24"
- Bloom Colors
- PinkRedWhitePurple
Companion plants, planting tips, FAQ, and more
Dianthus barbatus is the scientific name used by botanists, nurseries, and seed catalogs to identify Sweet William unambiguously. The genus Dianthus places it within a specific plant family, and using the botanical name avoids the confusion that comes with regional common names. If you're shopping for Sweet William, looking up plant care details, or comparing varieties, searching by Dianthus barbatus will give you the most precise results.