1.Trimming
The improper conveyance may do damages to paeonia suffruticosa seedlings. Prior to planting, upon the damage’s degree, to make paeonia rockii seedlings neat or tidy by trimming the broken or damaged roots and branch stems off in part or in whole.
2.Disinfection
To soak trimmed woody peony seedlings for 15 minutes in the Hexathane diluted in the proportion of 1：
500 or in Mildothane of 1：1000 or Allisan of 1：1000, then followed the water washing.
For paeonia suffruticosa seedlings with ball clay at roots, spraying their stems with above-mentioned liquor.
Prior to planting, the disinfected chinese tree peony seedlings shall be soaked for 30minutes in 500ppm
rootone liquor (an appropriate amount of rootone liquor should be granted to seedlings
with ball clay after their planting).
3.Planting
3.1 Pit digging: Pit shall be dug according to the size of tree peony root system and ball clay at the
root, it should not be narrow at the bottom so as to prevent bends of roots. The planting
depth shall be 30cm deeper than in the nursery.
3.2 Fertilization: Proper surface soil, organic fertilizers (thoroughly decomposed) and
chemical fertilizers shall be placed at the bottom of pit so as to benefit the new
generated roots.
3.3 Planting:
3.3.1 For paeonia rockii seedlings with exposed roots: The surface soil shall be piled at the bottom of
pit first, with a loose depth, then an appropriate amount of organic fertilizers shall be
sprayed, with fertilizers being covered by a backfilling layer, so as to isolate the root
system from fertilizers. Seedling with exposed roots shall be placed at the center of pit
with the root system laid down as it is. Backfilling shall be performed around seedling pit,
followed by compression as appropriate and seedling shall be slightly lifted with planting
depth 3cm deeper than in the nursery, then backfilling layer shall be added.
3.3.2 For tree peony seedling with ball clay at the root: Seedling with ball clay at the root shall be
vertically placed at the center of pit with the root being placed firmly. The planting depth
shall be appropriate. Backfilling shall be performed around ball clay, followed by
compression as appropriate. Hemp (straw) bags in the upper part of ball clay shall be
cut open and removed.
4.Watering
After planting is completed, it’s necessary to do watering thoroughly.
5.Triming
Trimming may be performed after planting. To clip all broken, damaged, crossed,
overlapped stems and delicate ones in overcrowding place as well. The pruning wound
shall be smooth. Pruning wound more than 1.5cm in diameter shall be sealed with
grafting wax or japan lac to facilitate healing and prevent moisture diminishing and
sprout
6.Maintenance
6.1 Watering: Watering if necessary. An appropriate watering shall continue the premise.
that the soil moisture status to be kept neither dry nor hydrops. A soaking watering may
be wanted prior to the forthcoming winter.
6.2 To loose soil layer around the rockii tree peony seedling after every watering.
6.3 Management after leaf expansion and before blossoming
6.3.1 Sprout-plucking and Bud-removing: All other 3cm long sprouts shall be plucked
except for one reserved on every stem. As for 5cm long sprouts germinated from
rootstalk, only1-2 vigorous and reasonably distributed sprouts shall be reserved upon
the growing circumstances of rockii treeeplant. They may also pluck all of them. The buds number
shall depend on the size of plant and its stems while buds start coloring, in general, only
one bud shall be asked for every 2-3 stems, so as to ensure the quality of view.
7.Precautions
paeonia rockii has its origin in northwest China. Drought resistance and being easily
damaged by waterlogging characterize it. It shall be thoroughly irrigated twice from
leaves expansion to the time in buds, watering for other times if necessary. The
immediate drainage is essential while rainy season comes, so as to protect its tree peony root from
soaking which may result in defoliation in advance or even the death to paeonia rockii .
