why the paeoniarockii grafted seedlings cut off the remaining flowers after flowering

 In mid-May, the paeoniarockii has basically finished blooming. Post-flowering management is very important and will affect the flowering and growth effects of the next year.

The paeoniarockii grafted seedlings cut off the remaining flowers after flowering, mainly based on the following key reasons:

1. Reduce nutrient consumption and promote plant growth

- Peony flowering requires a lot of nutrients, especially in the initial stage of root system and rootstock fusion of grafted seedlings, the nutrient reserves of the plant are relatively limited. Timely cutting off the remaining flowers can prevent nutrients from being used for seeding or maintaining flowers, and instead concentrate energy on root system development, new bud differentiation and branch and leaf growth, accumulating more sufficient nutrients for flowering next year.

2. Prevent the breeding of pests and diseases

- If the withered flowers remain on the branches for a long time, they are prone to breeding pathogens such as mold and gray mold due to moisture or rot, and may also attract pests. Cutting off the remaining flowers can reduce the risk of plant infection and maintain overall health.

3. Ensure the survival and adaptation of grafted seedlings

- Grafted seedlings need to focus resources on the healing and adaptation of rootstock and scion in the early stage. Retaining residual flowers may increase the burden on the plant and affect the healing speed and survival rate of the grafted part. Cutting flowers helps the plant to smoothly pass the critical growth period.

4. Promote flower bud differentiation and improve the quality of flowering next year

Flower bud differentiation of peony usually occurs after flowering. Cutting off residual flowers can reduce nutrient diversion, enable the plant to photosynthesize more efficiently, and promote the formation of new flower buds, thereby ensuring larger and more luxuriant flowers next year.

Pruning operation suggestions:

Timing: Prune immediately when the flowers begin to wither and the petals wilt significantly, and avoid delay.

Method: Use sterilized scissors to cut flatly from the base of the pedicel (about 1-2 cm below the calyx) to avoid damaging the new buds.

Subsequent care: After pruning, add appropriate amounts of phosphorus and potassium fertilizers to enhance the resistance of the plant; keep the soil moist but not too wet to avoid root rot.

Through scientific pruning, purple-spotted peony grafted seedlings can establish a strong plant structure more quickly, laying a solid foundation for their future ornamental value.

Please master these planting techniques and you can also make the rare plant paeoniarockii bloom beautiful flowers

 The daily management of Paeonia rockii needs to be combined with its growth habits and environmental needs. Detailed management guidelines are as follows:

Environment and soil management

Lighting requirements

need 6 hours or more of direct sunlight a day, and adequate shade (especially for seedlings) in high summer temperatures.

avoid long-term shade, which will result in reduced flowering and emaciated plants.

2. Soil conditions

Loose breathable, good drainage of sandy loam is best, avoid clay heavy soil or water.

soil pH should be neutral or slightly alkaline (6.5-7.5) .

Management of water and fertilizer

1. The principle of grade watering

Spring germination: keep the soil moist to avoid drought affecting flower bud differentiation.

Summer: Morning and evening watering, avoid high temperature at noon, to prevent burning roots.

Autumn: reduce the frequency of watering and promote lignification of branches for overwintering.

Winter dormant period: basically cut off water, keep the soil slightly dry.

2. Fertilizer tips

Spring (before germination) : apply NPK balanced compound fertilizer (such as 15-15-15) to promote the growth of new shoots.

Bud Stage: increase phosphorus and potassium (such as Monopotassium phosphate) to improve flowering quality.

After flowering: topdress rotten organic fertilizer (such as bone meal, cake fertilizer) to add nutrients.

Autumn (September-october) : burying and applying decomposed organic fertilizer to enhance the ability of overwintering and cold resistance.

Pruning and shaping

1. Pruning after flowering

Cut off the remnant flowers in time to avoid the consumption of nutrients and keep the leaves for photosynthesis.

remove dead and diseased branches and keep them well ventilated.

2. Shaping and pruning (winter)

During the dormant period, the dense branches and cross branches are pruned, and the strong main branches are retained.

Tree peony can retain 3-5 main branches, forming a natural opening of the plant type.

The pest control

1. Common diseases

Gray mold: rainy season prone to use 50% carbendazim 800 times the liquid spray.

Root rot: avoid standing water and irrigate roots with metalaxyl at the beginning of the disease.

2. Common pests

Aphids: spray imidacloprid or soapy water.

Spider mites: hot and dry, use Avermectin to control them.

Management of overwintering

1. The north

– pour“Sealed water” before winter and cover the roots with straw or earth (10-15 cm thick) to protect against the cold.

– young plant can be wrapped with non-woven cloth.

2. The south

– In general, no special protection is required, but defoliation should be cleaned to reduce the growth of pathogens.

Propagation and transplanting

1. Ramet propagation

The best time is autumn (September-october) , selecting 3-4 years old mother plant, keeping complete root system.

2. Main points of transplanting

– when transplanting with soil ball, to avoid root injury, after planting watering and shade seedlings.

Points to note

Avoid continuous cropping, more than 3 years between plantings in the same plot.

Avoid raining during the flowering period to prolong the life of flowers.

Loosen the soil and weed regularly to keep the soil well ventilated

Common Pests and Diseases of Peony-

Tree Peony, as China’s unique woody flowers, with thousands of years of natural growth and more than 2000 years of artificial cultivation history, widely loved by the people, often found in the garden or landscape. However, in the process of tree peony cultivation, due to weather, soil and management and other reasons, it is easy to appear disease. The infected plants often show the phenomenon of leaf covered with disease spot or edge withered, branches thin and weak, root rot and disfigurement, if the infected plants are not treated in time, the disease will spread in a large scale, which greatly affects the ornamental value and economic value of the tree peony. Therefore, peony disease control is an important part of the cultivation of peony, today to give you a brief introduction of the six major peony disease control.

01Anthrax

Damage parts: stems, petioles and petals and other plant young tissues

Manifestation: the leaf surface will appear small brown spots, when serious into a round or irregular spots can lead to perforation, the affected young leaves will also show the characteristics of shrinkage, curling. After infection, the stem will appear initially reddish brown oblong spots, then will develop into large irregular spots, the middle will appear inconspicuous light gray, the edge of the spot is reddish brown. Infected stems will bend and eventually fold, and young stems will wither and die in a short period of time. The petal and the flower scale can appear bud wither and the deformity flower and so on question, if the occurrence disease is in the rainy and wet season, the surface also can produce the pink spore pile.

High incidence: the pathogen of anthracnose usually overwintering in the form of hyphae in the diseased plant. Conidia will germinate and spread when the temperature is suitable in the second year.

Methods of prevention and Cure:

1 deep turn the soil of peony cultivation, improve the air permeability of soil and the environment of microorganism growth, ensure the root can stretch to grow, absorb sufficient nutrient.

(2) pruning the whole plant in time, removing dead branches and debris, and burying or incinerating them.

3 spraying 75% Mancozeb or Anthrax Thiram 500 times, once every 15 days, continuously spraying 2-3 times.

02 Powdery mildew

Damage parts: leaves and petioles

Manifestation: the peony leaves will form a layer of white powdery spot in the early stage, and the disease spot will appear on both sides of the petiole and leaf surface in the late stage, accompanied by many small black spots, and gradually expand and develop into a large area of disease spot, it can cause whole leaves and stalks to wither and die.

High-incidence period: generally in the rainy and wet season occurs very serious, too dense plants or poor ventilation can also cause peony powdery mildew.

The control methods were as follows:

(1) proper pruning and shaping could be carried out to improve the ventilation and light permeability of the plants and to remove the infected leaves in time. (2) spraying 20% triadimefon WP and strengthening field management, phosphorus and potassium fertilizer could be applied properly, but the amount of nitrogen fertilizer should be strictly controlled to improve the disease resistance of plants.

3 sulphur mixture could be sprayed before sprout in spring, 80% Mancozeb wettable powder or carbendazim could be sprayed at the onset of disease in growing season, once every 15 days and three times continuously.

03Root rot

Damage: Root

Manifestation: the leaves will turn yellow or reddish, some mesophyll will turn yellow, while the growth of some plants on the ground is weak, serious will lead to leaves and branches withered, the whole plant death, the roots of the diseased plants were found to be rotten and dark brown.

High incidence period: the field environment is humid, water accumulation is serious. In addition, the plants which were not transplanted with soil ball during Ramet transplanting were also susceptible to disease.

Prevention and Cure Method: after the soil is deeply turned, carbofuran can be applied, and carbendazim WP can be sprinkled on the base of peony root, every 10 days, to ensure that the medicine can be deep underground.

04 Leaf spot

Damage parts: leaves and shoots

Manifestation: 15 days after flowering, brown spots appear on the abaxial surface of the leaves, the edge of the color is darker, and then developed into an irregular circular spots, all the spots can be connected into one, leading to leaf wither and fall. Infected stems and stalks produce raised lesions, and pathogens can overwinter in stems, leaves, and soil.

High incidence period: generally in the rainy season onset of serious, in high temperature and humid conditions.

Control methods:

1 cut off the infected branches in time before and after the beginning of winter and burn them to ensure that the pathogen was completely eliminated.

2 Bordeaux mixture and thiophanate-methyl were sprayed 3-4 times before the onset of the disease.

05Botrytis cinerea

Damage parts: young plants and peony flowers, stems and leaves and other parts

Manifestation: cause the tree peony seedling lodging and withering, death. The infected parts give birth to gray mold, brown spot also appears on the stem, peony peony seed will be seriously affected when the peduncles encounter this kind of disease.

High incidence: July-august every year, when the weather is wet.

Control methods:

1 new soil transplanting, old soil can be sprayed with pentachloronitrobenzene wettable powder for disinfection treatment.

2 control planting density, ensure timely drainage after ventilation and light permeability.

3 the infected branches, leaves and buds should be cleaned up in time, and the whole plant should be pulled out and destroyed.

4 Bordeaux mixture and thiophanate-methyl solution can be used to prevent and cure the disease.

05 seedling damping-off disease

Damage parts: stem base and whole plant

Manifestation: in the process of seedling raising and germination, seedling damping-off will lead to hypocotyl and leaf rot. The seedlings were infected by the disease after they were unearthed, and the first damage was to the base of the stem. Canker lesions appeared on the affected parts, then changed from light brown to yellow brown, and spread around the whole stem, seeds that have not sprouted can also be infected when the disease is severe. Usually, seedling damping-off is mainly caused by pathogenic fungi of the genus Phytophthora. The disease can be spread by means of agricultural machinery, transplanting and farm manure.

Control methods:

1 select disease-free new soil, do not use diseased field to raise seedlings, but also choose Mancozeb and metalaxyl medicament, evenly mix and spread on the border.

2 in addition, peony seeds should be disinfected in 50 ° C warm water for 20 min, then diluted with pyrazolium and Mancozeb etc.

The key point of planting rockii peony

 The method to planted ROCKII Peony in land or pot are essentially the same, the key points are as follows:

for peony’s root is Intensive, if not careful when planting, the soil is not easily filled into the root of the heart of peony, leading inside of the root can not let the soil infill, the core part is still empty after the seedlings were planted.

Part of roots contact with air so that the root of peony will mildew while growing, mildew will gradually make root rot, poor growth after germination, slowly dying phenomenon appears.

Second, land planted or potted plants are not watered too much. The specific approach is: peony planting immediately after pouring a permeable. After watering interval can not be too short, as long as the soil is kept moist. If the water is too much, soil airtight seedling growth process leaves will yellow and dying.

Third, the fertilization. Fertilizer in the soil can not be too much, especially inorganic fertilizers, too much will hurt the root system, it is best to the seedling leaves Expand, fertilizer spray once every ten days page, but the concentration is not large.

Fourth, to trim. Pruning is an important part of the seedlings were planted seedlings were planted sure to Ruomiao the trimmed. Maintain a 3-5 strains robust branches, so that nutrition can be set to ensure that the main branches vigorous growth, a good start to spend.

Fifth, the light. Peony to hi lighting, nursery stock can not be placed in insufficient light for a long time. Only in the flowering buds fully formed, in order to meet the manual set the flowering period (extended flowering period) may be appropriate shade, generally no more than seven days.

Peony Flowers to bloom, spring management is very important, teach you a few management skills

 The temperature gradually rose in spring, peony also began a year of growth recovery, peony spring care is directly related to the growth and flowering of the peony

Flowers, then, how should Paeonia suffruticosa be managed in the spring? Next for everyone to introduce the peony spring maintenance management points.

First, spring peonies need a little pruning

Peony flowers, to the spring, as the weather is warming, its bud has appeared, at first looked small, but can already be recognized, at this time we should pay attention to a little pruning, pruning mainly to complete the following tasks, first, we should trim the dense branches to improve the light, and second, we should cut off the dense flower buds. After all, peony flowers consume too much nutrients, if the flower buds are too much, it will lead to too much nutrient dispersion, peony flowers are relatively small, loss of aesthetic appeal.

In spring, the peony will sprout more soil buds from its roots. Some friends will say, isn’t this a good thing? Don’t you get more young peony plants? In fact, this understanding is wrong. Most peonies are obtained through root grafting of Paeonia lactiflora pall. The soil buds from the root system can not produce dainty peonies, and they compete for nutrients. These are very disadvantageous to peonies, so you have to get rid of it in time.

Second, the peony flowers to the spring should be timely fertilization and watering

The peony flower will bloom in the future, and the consumption of nutrients is relatively large. After a long winter, the peony flower has already consumed more nutrients, so it is very necessary to supplement nutrients in time, in other words, we should fertilize Paeonia suffruticosa in time. We should fertilize peony flowers. We should pay attention to the use of decomposed organic fertilizer, such as decomposed cake fertilizer, decomposed animal waste, etc. . These fertilizers have stable nutrients, can improve soil fertility, more importantly, can improve the quality of peony flowering, bloom in the future, let the flower color more charming.

Use decomposed organic fertilizer at the same time, we can use compound fertilizer, let the inside of the nitrogen element to promote growth, inside of the phosphorus and potassium elements to promote flowers, at this time absolutely can not partial fertilizer nitrogen fertilizer, partial application of nitrogen fertilizer will lead to excessive growth of nutrients in peony flowers, weaken the growth and growth, the flower bud can not get such elements as phosphorus and potassium breeding, will make the flower bud thin and weak, and even will disappear.

If we want to make better use of the fertilizer effect, we should also pay attention to reasonable watering. We should not water too often, otherwise the fleshy roots of peony flowers are easy to be soaked and rot, when watering should wait for the soil to become dry two or three centimeters again water is not late, water must be watered thoroughly.

Third, the peony to see more sunlight, pay attention to ventilation loose soil

If the peony flower wants to blossom in spring, it must pay attention to give it more moderate sunlight. The sunlight in spring is very mild, which is good for the peony flower to carry out photosynthesis, to make more nutrients, and is good for the plumpness and expansion of the bud, if potted peony, it should be placed in a well-lit place, in addition to pay attention to timely ventilation, so that peony growth can be more state.

The root system of peony is fleshy root, not water stain, like to breathe, so you can loosen the soil, loose soil, peony root system will be very good breathing and relaxation, absorb more nutrients, to promote plant growth.

How a seed of Paeonia rockii grows into a tree peony

 Peonies are giants in the peony world. They are tall, fragrant and resistant to cold. The main methods of propagation are grafting and fruiting. How does a seed grow from a seedling to a tree

Choose the full-bodied seed of peonies

1. Before sowing, Soak 300 times of thiophanate-methyl solution for 30 minutes to sterilize, remove and place in a cool place to dry

2. If the area of seedling is large or the condition is allowed, the sowing machine is usually used or the artificial sowing can be adopted. If it is a mechanical sowing, be sure to level the ground to avoid local sowing too deep.

The sowing quantity is 90-100kg/Mu, the sowing depth is 3-5cm, the row distance is 20-25cm, the concrete also has the relations with the local climate and the soil condition.

Every 4 rows is a ridge (bed) covered with a layer of 120 cm plastic film, film is too wide central seedlings easy to rot, not easy to survive.

3. After mulching plastic film covered with grass or a sm

all amount of soil, to increase the temperature, extend the growth time of new roots, is conducive to the next year strong seedlings. Early Spring Peony shoots drill out before the ground, to remove timely plastic film.

The space between small Ridge (bed) and small Ridge (bed) is 40cm, which is convenient for later watering and pipe protection.

4. The seeds of Paeonia rockii germinate after three months and take root in the following spring

It takes at least six months for a seed to be planted and a young tree peony to form. It is this young tree that has been honed into a big tree through decades of continuous growth, to be a giant in the peony kingdom.

 

Why Autumn is one of the best seasons for transplanting peonies

Spring is the season of peony branch

Summer is the dormant period of peony, high temperature season, the above-ground part into the stage of flower bud differentiation and seed development, when the root activity becomes weak, in a semi-dormant state.

After autumn, as the temperature drops, the root system of tree peony begins to grow a second time, it will grow a lot of capillaries, a lot of nutrients in the root bark (mainly secondary phloem) in the accumulation. At this time, the above-ground part of the branches and leaves slowly withered into the dormant period, but the peony root system is still growing to produce new roots. These new fine roots is the most important tree peony transplant, transplant to other places, can adapt to the new environment, quickly take root, so safe over the winter.

What are the benefits of transplanting peony in autumn?

The temperature drops gradually when peony transplanting in autumn, the above-ground branch enters dormancy period, the leaf slowly withers this to the water demand is little, consume nutrient little, this is advantageous to the nutrient balance. Moreover, at this time, the root bark was rich in nutrients, and the ground temperature was relatively high even though the outside temperature had not yet dropped significantly.

The roots of the tree peony were not yet completely dormant, and the root system cut off during transplantation could be healed as soon as possible, and the root system is still growing, constantly producing new roots.

Five techniques of winter maintenance and management of peony

If you want peonies to bloom well in the coming year, the maintenance and management in the winter should not be ignored. Peony winter maintenance management mainly includes: remove dry leaves peony, pruning peony branches, peony fertilization methods, peony pest control, remove overwintering weeds and other work to be done.

1. Defoliation. Leaves dry in winter, often on branches. Because there are many bacteria and insects on the leaves eggs, it should be cut off in time, so as not to fall to the ground, the next year to spread diseases and insects. The dead leaves should be cut off at the base of the Petiole from 1 to 1.5 cm to avoid damage to the flower buds. For the leaves that are easy to fall off after separation, pull them out by hand. Dead leaves that have been cut off or plucked should be burned.

2. Prune. Peonies are dormant in the winter, when it's time to Prune. On the premise of keeping the shape of the plant perfectly, the budding branches from the ground around the main branch and the overlapping branches, crossed branches and diseased branches on the plant should be cut off. The strong branches with flower buds should be kept completely; the branches with Leaf Buds but without flower buds should be cut off only the thin branches, while retaining part of the thicker branches. In short, the tree peony tree branches to make the appropriate length and density, easy to ventilate light.

3. Fertilize. Peony is like fat flowers and trees, winter dormancy period even if more fertilizer applied, it will not produce the phenomenon of burning roots. But in order to be safe, fertilization should be half-decomposed cake fertilizer or human excrement and urine. Each tree from 6 to 10 years old can be applied cake fertilizer 300 grams or 600 grams of human excrement and urine. The amount of fertilizer applied to big tree peony should be increased appropriately. In the case of organic fertilizer-based, each tree peony can also be mixed with 30 to 50 grams of compound fertilizer. Fertilization should be carried out in shallow holes dug 10 cm apart from the main root of the peony at 20-25 cm.

4. Pest control. The common diseases of tree peony are gray mold and brown spot. In winter, the whole plant can be controlled by spraying the mixture of Pomerol 5 and thiophanate 800 times. The most serious pests to the peony are scale blowers and GRUBS (scarabs larvae) . For the control of Hemiberlesia Rugosa, all the insect bodies on the branches can be scraped off and burned off with bamboo knife, and then the branches can be smeared with a mixture of bomay 3-5 degree lime and sulfur, which can kill most of the overwintering females and eggs. Omethoate or DDVP 500-800 solution can be used to control Grub by pouring peony root.

5. Weed out overwintering weeds. In winter, cold-resistant weeds are often found in peony garden or potted Peony Pot, which should be removed in time to avoid competing with peony for nutrients. It is better to deeply hoe the planting area of peony once or twice, which can not only clear the weeds, but also play the role of soil loosening and soil moisture preservation, which is beneficial to the over-wintering of peony.

The reason why peonies don't bloom

Many people who are just beginning to plant peony will encounter such a problem: Autumn Planting Peony Flowers, spring opened a lot of flowers, but the next spring is not in bloom!

Why is that? Today I'm going to analyze why.

Want to know why peony does not blossom, so we come to understand first, peony in what circumstances can blossom.

The condition of peony flowering

1, rich water want peony flowering, the first condition is rich in rich water, peony growth robust, natural can reach the conditions of flowering. Natural Plants Flower and bear fruit in order to reproduce, so the plant itself must be strong and mature enough to do so.

2, after the low temperature vernalization peony flowering is required after 2-3 months of time below 10 degrees vernalization. Without the process of low temperature vernalization, buds can not be conceived and flowers can not bloom naturally.

Ok, we know the necessary conditions for peony to blossom. Then let's take a look at why our peony can blossom in the first year and not in the second year.

The reason why peonies don't bloom in the second year

The reason that peony does not blossom 

the second year is we manage not to arrive in place after all, did not do the rejuvenation work of peony well.

1. Lack of fat and water

Our flower friends are often to see the heart cut, even the first year on the potted peony, will let it bloom, and flowering is a lot of nutrients to consume, if the flowering, and then let its seed, it is undoubtedly the consumption of peony is huge

Summer is the flower bud differentiation period of tree peony, nutrition for the next flowering tree peony has a crucial impact, if not timely fertilization will naturally affect the next flowering.

2. Improper watering

Only topdressing is not enough, water management is also very important!

Have you followed the dry and sodden rule? If the peony is watered too much, the root system will be damaged and the growth of the plant will be weakened. If the plant is not strong enough, it will only grow leaf buds and not flower buds.

3. Pest infestation

Does your peony have early drop leaf, or leaves appear black spot, parched situation?

Diseases and insect pests also weaken tree peony plants and prevent them from forming flower buds.

4. No vernalization

Winter temperature reached the condition of vernalization peony, but will peony potted in the warm indoor winter, it is your fault. Personal suggestion, winter will peony in 0 degrees or so, adequate light environment can, do not put heating room and air conditioning room, complete vernalization is certainly not blooming

To sum up, if you want peony flowers to bloom year after year, management must be in place, fertilizing and pruning in a timely manner. When you buy seedlings, you should try to select healthy seedlings and give up the idea of buying small seedlings. The management itself is not very good Then the purchase of poor resistance to small seedlings, that raise to bloom really do not know when to.