The Double Campernelle Daffodil, scientifically known as Narcissus x odorus ‘Plenus’, is a cherished spring-blooming bulb, admired since 1601. It naturalizes and returns year after year, making it a delightful harbinger of warmer seasons. This variety offers a distinct visual and aromatic experience.
Distinctive Features
The Double Campernelle Daffodil is recognizable by its “double” flower form, which features dozens of petals neatly nested together, creating a rose-like appearance. Blossoms are a rich, intense yellow, sometimes displaying a slight green tinge, and emit a strong, sweet fragrance. Each stalk typically produces two to three rosebud-like flowers in early to mid-spring. The plant reaches 10 to 15 inches (25-38 cm) tall with a compact, clump-forming habit, making it a noticeable addition to various garden settings.
Planting Double Campernelle Daffodils
Plant Double Campernelle Daffodil bulbs in mid-fall as soil temperatures cool. Choose a location with full sun to partial shade; full sun benefits northern regions, while afternoon shade helps in warmer climates. These daffodils thrive in well-drained soil, as bulbs rot in overly wet conditions. Amend clay soil with organic matter or plant in raised beds to improve drainage.
Optimal planting depth is three times the bulb’s height, about 6 to 8 inches (15-20 cm) deep, with the narrow end facing upwards. Space bulbs 4 to 6 inches (10-15 cm) apart. After planting, cover with soil and water thoroughly to settle the soil and encourage root growth. Maintain consistent moisture through the fall, especially if rainfall is scarce, to support establishment before winter.
Ongoing Care and Cultivation
Ongoing care for Double Campernelle Daffodils supports their growth cycle and future blooms. During active growth and blooming, plants need consistent moisture, about an inch of water per week. Reduce watering once foliage dies back, as excessive moisture during dormancy can cause bulb rot. Fertilize with a slow-release bulb fertilizer or 10-10-10 in fall and lightly in spring as plants emerge. Compost or liquid plant food can also be applied after flowering to strengthen bulbs.
Deadhead spent blooms to direct energy towards bulb development. Allow foliage to mature and yellow naturally for 8 to 10 weeks; leaves are crucial for photosynthesis, replenishing bulb energy for next year’s flowers. Prematurely removing foliage can reduce or prevent future blooming. In colder regions, apply mulch after the ground freezes for winter protection.
Troubleshooting and Common Concerns
Double Campernelle Daffodils may experience non-blooming due to several factors. Insufficient sunlight (less than six hours daily) or too much shade prevents flower bud formation. Overcrowding, premature foliage removal, shallow planting, late fall planting, or excessive nitrogen fertilizer can also reduce flowering.
Pests like the narcissus bulb fly (Merodon equestris) feed inside bulbs, destroying future flower buds and causing decay. Control involves firming soil to deter egg-laying and promptly removing infested bulbs. Slugs can damage buds and young foliage, leaving holes and slime trails. Deterrents include diatomaceous earth, beer traps, copper tape, and removing debris. Basal rot, caused by Fusarium oxysporum, leads to bulb base decay. Manage it by ensuring well-drained soil, avoiding bulb injury, and discarding diseased ones.
Landscape Applications
Double Campernelle Daffodils are versatile for various landscape applications. Their naturalizing habit makes them excellent for large drifts in naturalized areas or under deciduous trees, creating a vibrant spring carpet. They are effective in garden borders, adding early season color and fragrance. Their compact size also suits rock gardens or container plantings.
Mass plantings create a striking visual impact. They are a favored choice for cut flower arrangements due to their attractive form and sweet scent. These daffodils are naturally resistant to deer and rodents, which avoid them due to toxicity, ensuring a reliable display year after year.