English: P. rockii is known for the obvious black, purple, and brown-red spots at the base of petals. Its main features are:

1. Tall plant, can reach 2-3 m high, crown width 3-4 m. 2. Big and bright flower, the diameter can reach 18-25 cm. 3. Strong fragrance; the smell of one open flower can dominate that of 10 other open flowers from another peony. 4. Resistance to drought and frost; tolerance of salt and base. Can bear temperatures as low as -43°C; can still grow normally at pH above 7. 5. Distinct Purple/black spots at the base of the petals.

The cultivation of Paeonia rockii is simple and does not require strict management; it is less attacked by diseases and pests, but in hot and humid weather leaves will grow mould and present scorched leaf symptoms; a sterilizing can be sprayed on foliage to combat the disease. The planting seasons are fall and spring.

There are 3 ways of propagation: sowing, budding, and grafting.

Sown seeds can blossom after five years; grafted and budded seedlings can blossom just after plantation, but need 2-3 years after the rejuvenation period to offer a better blossom.