Paeonia Karl Rosenfield 3 Litre Pot

Paeonia Karl Rosenfield – A Bold, Fragrant Peony with Deep Crimson Blooms and Classic Garden Appeal

Paeonia Karl Rosenfield is a dramatic and much-loved herbaceous peony, cherished for its large, double blooms in a vivid magenta-crimson hue. Introduced in the early 1900s, this variety remains a firm favourite for its robust growth, luxurious flowers, and long vase life. It brings structure, fragrance, and vibrant colour to cottage gardens, mixed borders, and floral displays, thriving in the UK’s temperate climate.

Seasonal Beauty & Growth

Spring to Early Summer:

In spring, the plant produces bushy green foliage followed by large, densely packed buds that open in late May to early June. The deep crimson flowers, occasionally flecked with darker tones, are double and very fragrant, creating a stunning focal point in early summer borders.

Summer:

After the blooming period (usually 2–3 weeks), the plant maintains its shape with attractive, divided foliage that provides background texture for neighbouring perennials.

Autumn:

Foliage gradually turns golden or bronze before dying back naturally. This is the time to cut back the stems to ground level and clear any plant debris to prevent disease.

Winter:

Dormant over winter. Apply mulch in late autumn to enrich the soil and protect emerging buds in colder parts of the UK.

Structure & Form

Paeonia Karl Rosenfield forms a rounded, upright clump with strong, leafy stems that support the heavy flowers. It grows to around 90–100 cm in height and 80–90 cm wide, making it suitable for mid- to back-of-border planting. Its bold blooms and well-behaved growth habit make it ideal for formal or informal designs.

Perfect for Various Landscapes

Cottage & Country Gardens:

A classic staple in romantic, traditional garden schemes where its rich colour pairs beautifully with foxgloves, delphiniums, and old-fashioned roses.

Cut Flower Gardens:

With its strong stems, large blooms, and sweet scent, ‘Karl Rosenfield’ is perfect for cutting and arranging indoors.

Mixed Borders:

Provides an early summer highlight among spring bulbs and later-flowering perennials.

Formal Beds:

Works wonderfully in symmetrical designs or alongside clipped evergreens for a structured, elegant display.

Growing Conditions & Care

Position:

Thrives in full sun with shelter from strong winds. Tolerates light shade, particularly in warmer southern regions.

Soil:

Grows best in moist, fertile, well-drained soils with a neutral to slightly alkaline pH. Avoid waterlogged spots, especially in winter.

Planting Depth:

Crucial for good flowering: plant so that the crown (buds/eyes) sits no more than 2.5–5 cm below soil level. Planting too deeply may reduce flowering.

Watering:

Water well during dry spells in the first year to establish roots. Once established, it is drought-tolerant but benefits from occasional deep watering.

Maintenance:

• Deadhead after flowering to encourage tidy growth.

• Cut back foliage in autumn and dispose of it to reduce risk of botrytis (a fungal disease).

• Feed in early spring with a balanced fertiliser or apply a mulch of compost or well-rotted manure around, but not over, the crown.

Winter Care:

Fully hardy in all regions of the UK (RHS H7). A light mulch in late autumn helps protect against frost heave in heavy soils.

✅ Why Choose Paeonia Karl Rosenfield?

• Striking crimson-magenta blooms with bold, double petals

• Highly fragrant and excellent for cutting

• Robust and reliable, thriving in most well-drained UK soils

• Long-lived—can flower for decades in the same spot

• Adds drama and structure to a wide variety of planting styles

Perfect Plant Combinations

• Foliage Contrast: Pair with Heuchera, Hosta, or Ferns for a soft textural balance.

• Flowering Companions: Combine with Iris, Aquilegia, or Alliums for a stunning late spring display.

• Seasonal Successions: Underplant with tulips or narcissus, and follow with echinacea, salvia, or phlox for continuous colour.

• Shrubs: Great alongside Philadelphus, Spiraea, or Boxwood for year-round structure.

Conclusion

Paeonia Karl Rosenfield is a bold and reliable peony that brings elegance, drama, and fragrance to early summer gardens. Its deep red blooms are a striking contrast to softer pastel planting schemes, while its long-lived, low-maintenance nature makes it a favourite for both beginners and experienced gardeners. Whether used as a statement in the border or cut for indoor arrangements, this heritage variety continues to be a star performer in UK gardens.

Paeonia Karl Rosenfield 3 Litre Pot Grasslands Nursery Winter Hardy Average Rate Of Growth Late spring and early summer Crimson red Deciduous

Does the height include the pot?

No, we measure from the top of the pot to the tip of the plant except for some of the instant planted screens, in this case it will be stated in the description

How long does delivery take?

Most orders are delivered in just a few days, Smaller items are often sent with Parcelforce on a next day service, Larger items should allow up to 10 days due to the size of the items they often have to be sent on our own transport.

Where will you leave my plants?

We will leave your order at the front of your property, Parcelforce may
leave your items in a safe place if you let us know, Pallet couriers
will require a flat hard surface to deliver to, no gravel or soil, a
driveway or parking spot would be best. Most importantly Deliveries by
pallet courier will require access for a large truck (bin lorry sized)
to get near the delivery point. Deliveries sent on our own transport may come in a small van or larger truck.