Paeonia ostii is a hardy shrub in the peony family, Paeoniaceae. It can be found in the Gansu, Anhui, Shaanxi and Henan provinces of China. It can reach heights of 1.5 m with grey-brown bark and lance shaped leaflets. Flowers are produced in mid-spring, up to 15 cm across, and pure white without basal blotches. The flowers can sometimes be faintly tinged with pink. This species is the parent of two medicinal varieties of tree peonies. 'Feng Dan Bai' (Phoenix White) and 'Feng Dan Fen' (Phoenix Pink) are grown for the bark of their roots which is used as an antispasmodic throughout Asia.
Paeonia ostii has strong resistance to disease and is typically not susceptible to illnesses. In terms of care, this plant is fairly low-maintenance. Planted outdoors, it needs only infrequent watering, and larger specimens usually do not require pruning. Smaller plants, however, should be pruned after they finish blooming. Paeonia ostii is appropriate for anyone with an outdoor space, such as a garden or a deck, and does not call for much prior care experience.
How to keep Paeonia Ostii.
Light
Paeonia ostii originates from habitats like forest understories and rocky areas, where it lives under natural shade. It prefers partial sun but can adjust to full sun or full shade, showing its versatile, hardy nature.
Water
Paeonia ostii does well in moderate humidity and can withstand different levels of moisture. For optimal hydration, water it once every 1-2 weeks. During dry seasons, this outdoor flowering plant goes dormant, conserving water to help ensure its survival.
Temperature
Paeonia ostii is highly adaptable to a range of climates, handling both scorching summers and cold winters. Nevertheless, it has an optimal temperature range for growth. If temperatures become too high, the plant may experience heat and humidity stress that can cause it to die. In areas where temperatures approach the lower limit of its cold tolerance, providing insulation is important to protect the plant.
Fertilizer
The timing of fertilizing Paeonia ostii is important. Apply fertilizer in early spring and repeat monthly through early summer. Fertilizer encourages beautiful flowers and supplies energy during both dormancy and active growth.
Pruning
To encourage vibrant blooms and robust foliage, prune paeonia ostii in early spring before new growth begins. Important techniques include removing dead wood, thinning out the branches, and shaping the plant. This practice improves air circulation and light exposure, promoting overall health and abundant flowering. Always use clean, sharp tools for the best results.
Botanical profile.
- Plant Type
- Shrub
- Life Cycle
- Perennial
- Genus
- Paeonia
- Family
- Paeoniaceae
- Hardiness Zone
- 3-8
- Mature Height
- 0.91 m to 1.52 m
- Mature Spread
- 0.76 m to 1.22 m
- Leaf Color
- Dark Green, Forest Green
- Leaf Type
- Deciduous
- Flower Color
- White, Pink
- Flower Size
- 15.24 cm to 20.32 cm
- Bloom Time
- Early spring, Mid spring
- Planting Time
- Spring, Summer, Autumn
- Harvest Time
- Early summer, Mid summer
- Native Area
- China
