Peony ‘Catharina Fontijn’ is a valued herbaceous perennial, celebrated for its opulent blooms. This cultivar offers classic elegance and reliable performance, making it a popular choice for many gardens.
Understanding Peony ‘Catharina Fontijn’
Peony ‘Catharina Fontijn’ showcases large, double, bomb-type flowers with a full, rounded appearance. Petals open creamy white, softening to delicate pink and apricot as they mature. This cultivar often emits a subtle, pleasing fragrance.
Blooming occurs in late spring to early summer, typically May to June. Mature plants reach 30 to 36 inches (75-90 cm) in height and spread. Sturdy stems support the large flowers, though some support can be beneficial.
Cultivating Peony ‘Catharina Fontijn’
For abundant blooms, ‘Catharina Fontijn’ thrives in full sun, meaning at least six hours of direct sunlight daily. Well-draining soil is important, as peonies are susceptible to root rot in waterlogged conditions. An ideal soil pH ranges from slightly acidic to neutral, between 6.5 and 7.0.
When planting, proper depth is important for future flowering. Ensure the “eyes” or growth buds on the root crown are no more than 1 to 2 inches (2.5-5 cm) below the soil surface. Deeper planting significantly inhibits bloom production. Space plants approximately 3 feet (90 cm) apart for mature growth and adequate air circulation.
Consistent moisture is important during establishment and prolonged dry spells; avoid overwatering. Water deeply at the plant’s base, allowing the top few inches of soil to dry out before reapplication. Established plants exhibit good drought tolerance once their root systems develop.
Fertilize cautiously, as excessive nitrogen promotes leafy growth at the expense of flowers. Apply a balanced, low-nitrogen fertilizer (e.g., 5-10-10) in early spring as new growth emerges. Alternatively, a top-dressing of compost provides a gentle, slow-release nutrient source.
Due to large, heavy blooms, ‘Catharina Fontijn’ peonies benefit from structural support like a peony ring or stakes to prevent flopping. Deadhead spent flowers by snipping them below the bloom and above the first set of true leaves. This improves appearance and directs energy towards root development. In colder climates, apply a layer of mulch (e.g., straw or shredded leaves) over the crown after the first hard frost. This insulates and protects the plant from temperature fluctuations and frost heave.
Addressing Common Challenges
A common concern is the lack of blooms, stemming from several factors. Planting too deeply is a main cause, as “eyes” need shallow placement to trigger flowering. Insufficient sunlight (less than six hours daily) or an immature plant needing a few years to establish can also contribute. Transplant shock or excessive nitrogen fertilization, which encourages foliage over flowers, can delay or prevent blooming. Ensuring proper planting depth, sufficient sunlight, and balanced nutrients usually resolves these problems, encouraging future flower production.
Peony ‘Catharina Fontijn’ is generally a robust plant, though it can encounter certain pests and diseases. Ants are often seen on peony buds, attracted to sugary nectar, but are harmless and do not damage the plant or flowers. Fungal diseases like Botrytis blight (causing buds to rot and stems to blacken) and powdery mildew (white coating on leaves) can occur in humid conditions. Ensure good air circulation through proper spacing and promptly remove affected foliage to manage these issues.