Product description
'Karl Rosenfield' is a highly sought-after classic Peony, renowned for its large, fully double, brilliant crimson-red flowers that create an incredibly bold, dramatic statement in the garden. The striking blooms have a slight fragrance and make truly exceptional cut flowers for indoor arrangements.
To ensure vigorous growth, plant this Peony in a sunny position with deep, nutrient-rich soil, ensuring the crown is not buried too deeply to prevent it from refusing to flower. Apply a balanced fertilizer as the shoots emerge, and stake the plant early to support the weight of the massive red flowers.
Please Note: When purchasing plants, please consider that each live item is unique and may therefore differ from the images shown, which are for illustration purposes only. The plant will be supplied in a growers pot. Depending on season, some plants may be pruned back to encourage growth and deciduous plants may arrive without leaves.
Garden Plant Size Guide

Plants in larger pots can be multiple years older than their smaller counterparts with more mature root systems and foliage. This makes them able to thrive as a full size plant in your garden quicker than smaller alternatives.
The most common size of pot that garden plants come in are 9cm/1L/3L/5L this is in reference to the diameter at the top of the pot.
9cm potted plants still remain the most popular cost effective option though, they just may take a little patience to allow them to grow into full maturity once planted in your garden.
Plant specs, care guide & tips
Key features
Specifications
When to plant
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
Planting and period of interest times are general guidelines and may vary based on your location and conditions. For best results, consult local gardening resources.
Instructions
Top Tip
The massive, fully double flowers of the Paeonia become incredibly heavy, especially after rain; set sturdy metal hoops or stakes over the plant just as the new red shoots emerge from the dirt, so the foliage grows up and through the support.
How to Water
Water Paeonia deeply at the base to reach their deep roots. Ensure the soil is well-drained and consistently moist but never soggy. Avoid overhead watering to prevent fungal diseases like botrytis or powdery mildew.
How to Plant
The depth of the planting hole is the most critical factor for Paeonia; the red "eyes" (buds) on the fleshy roots must be buried exactly one to two inches below the soil surface, no deeper. Dig a wide hole in heavy, nutrient-dense loam and handle the brittle roots with extreme care.









