- USDA hardiness zones:
Large-cupped Narcissus (Division II). By definition, a large-cupped daffodil features a corona (cup) that is more than 1/ 3 but less than the length of the perianth segments (petals). ëCarlton is an early to mid-season bloomer that rises 18-20î tall in spring. Two-toned yellow flowers have a mild vanilla fragrance.
- Full sun to part shade
Easily grown in average, medium, well-drained soils in full sun to part shade. Prefers moderately fertile loams. Bulbs prefer a neutral to slightly acid soil. Plant bulbs 4-6î deep and to 6î apart in fall. Light fertilizer may be applied in spring after shoots emerge. After flowers have bloomed, foliage should not be cut back until it begins to yellow. Flowers usually face the sun, so bulbs should be grown with any shade areas at the rear of the planting. Propagation by bulb division is easiest. Clumps may be divided when flowering declines or clumps become too crowded.
Size and growth:
- 1.5 to 2.0 feet
- 1.0 to 1.5 feet
Bloom / flowers:
Showy flowers, Fragrant flowers, and Yellow
Best in beds, borders, rock gardens, wild gardens, open woodland areas, in front of shrubs or massed under trees. Best planted in quantity, i.e., from smaller groupings of at least 6 bulbs to large sweeping drifts. Large, naturalized plantings in informal areas (meadows or open woodlands) can be spectacular. Mixes well with other spring-flowering bulbs.
No serious insect or disease problems. Bulb rot may occur in poorly-drained soils.