Cultivation method of big-flower hydrangea cliff type model

Abstract

The invention provides a big-flower hydrangea cliff type modeling cultivation method, and belongs to the technical field of bonsai cultivation. The method comprises the following steps: (1) pre-culturing branches: culturing hydrangea grandiflora cutting seedlings and then carrying out pinching treatment, or pruning perennial branches with the length of 8-12cm after pruning; 2) cultivation and softening of modeling branches: spraying a gibberellic acid solution when pre-cultivated hydrangea grandiflora cutting seedlings or perennial seedlings grow to 15-20 cm, and softening the branches when the pre-cultivated hydrangea grandiflora cutting seedlings or perennial seedlings grow to 60-70 cm; 3) shaping treatment: twisting the softened branches into cliff shapes, fixing the branches, and placing the branches in a sun-shading place; (4) rejuvenation cultivation: putting the modeled big-flower hydrangea together with the pot into a big flower pot for cultivation, and (5) after the cultivation is completed, trimming and planting the big-flower hydrangea in a porcelain pot to obtain the cliff-type modeled big-flower hydrangea. The method is simple and convenient, high in production efficiency and capable of realizing large-scale production.

Description

Technical Field

[0001] This invention relates to the field of bonsai cultivation technology, and in particular to a cultivation method for a large-flowered hydrangea with a cliff-like shape. Background Technology

[0002] Large-flowered hydrangea, belonging to the genus *Hydrangea* in the family Saxifragaceae, is a warm-temperate, semi-hardy deciduous shrub. It is widely used in potted plants, cut flowers, and landscaping due to its large inflorescences, rich flower colors, long flowering period, and dark green leaves. With the development of the social economy and the continuous growth of e-commerce and the flower industry, the market for large-flowered hydrangea has continued to grow, and it has become a major flower variety consumed by gardening enthusiasts. However, currently, potted large-flowered hydrangea products are limited in form, with most products still remaining at the basic form of "plastic pot + flowering plant," failing to meet the aesthetic needs of modern home or commercial spaces.

[0003] This patent develops a cultivation method for "cliff-style" bonsai of large-flowered hydrangeas, combining variety, technology, innovation, and creativity to fill the gap in the market for high-end shaped large-flowered hydrangea products. Its cultivation technique is simple and convenient, with high production efficiency, allowing for large-scale production. This enhances the ornamental and economic value of potted large-flowered hydrangeas and promotes industry development. Summary of the Invention

[0004] The purpose of this invention is to provide a cultivation method for large-flowered hydrangeas with a cascade-style shape, thereby improving the ornamental and economic value of potted large-flowered hydrangeas and promoting the development of the industry.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution: This invention provides a method for cultivating large-flowered hydrangeas in a cascade style, comprising the following steps: 1) Pre-cultivation of branches: After cultivating the large-flowered hydrangea cuttings in the cultivation substrate, pinch off the tips, or prune the perennial branches to a length of 8-12cm. 2) Cultivation and softening of shaping branches: When the pre-cultivated large-flowered hydrangea cuttings or perennial seedlings grow to 15-20 cm, spray them with gibberellic acid solution. When they grow to 60-70 cm, soften the branches. 3) Shaping treatment: Twist the softened branches into a cliff-like shape, fix them in place, and place them in a shaded area; 4) Rejuvenation cultivation: Place the shaped large-flowered hydrangea, along with its pot, into a large flowerpot for cultivation; 5) After cultivation, prune and plant in a porcelain pot to obtain a large hydrangea with a cliff-like shape.

[0006] Preferably, the cultivation substrate in step 1) is a mixture of peat, perlite and coconut blocks in a volume ratio of 1~2:1~2:1~2, with 0.1 kg of bentonite added per cubic meter of substrate.

[0007] Preferably, the pinching treatment in step 1) is performed as follows: pinching is performed once when the cuttings grow to 4-6 cm, and pinching is performed a second time when they grow to 8-12 cm.

[0008] Preferably, the concentration of gibberellic acid solution in step 2) is 35~45 mg / L, and it is sprayed once every 14~16 days, for a total of 3~4 times.

[0009] Preferably, the softening treatment in step 2) is as follows: For plants with branch diameter <5 mm, control the moisture content of the cultivation substrate to 50-70% and withhold water for 2-4 days; for plants with branch diameter 5-7 mm, first control the moisture content of the cultivation substrate to 50-70%, withhold water for 2-3 days, then rehydrate to 100% moisture content for 2-3 days, and then control the moisture content of the cultivation substrate to 50-70% again and withhold water for 2-4 days; for plants with branch diameter >7 mm, control the moisture content of the substrate to 65-70% and place them in a cold storage at 7-10℃ for 3-5 days, or first control the moisture content of the cultivation substrate to 50-70%, withhold water for 2-3 days, then rehydrate to 100% moisture content for 2-3 days, and then control the moisture content of the cultivation substrate to 50-70% again and withhold water for 2-3 days. After 2-3 days, rehydrate until the moisture content of the cultivation substrate is 100%. Then, control the moisture content of the cultivation substrate to 50-70% and control the water for 2-4 days.

[0010] Preferably, the large flowerpot described in step 4) contains a substrate of 3-5 cm thickness. After the large hydrangea is placed in the large flowerpot along with its pot, an additional 8-10 cm of substrate is added.

[0011] Preferably, the matrix is ​​a mixture of peat, perlite and coconut coir in a volume ratio of 1~2:1~2:1~2.

[0012] Preferably, the ceramic pot described in step 5) contains a cultivation substrate composed of peat, perlite and coconut blocks in a volume ratio of 1~2:1~2:1~2, with 0.2 kg of bentonite added per cubic meter of substrate.

[0013] The present invention also provides an application of gibberellic acid solution in the design of large hydrangeas, characterized in that the concentration of the gibberellic acid solution is 35~45 mg / L.

[0014] This invention provides a method for cultivating large-flowered hydrangeas in a cascade style. By spraying gibberellic acid solution, the branches are softened, making them less prone to breakage when twisted. Experiments show that when using this patented method to create cascade-style potted large-flowered hydrangeas, the branch breakage rate is 8.3%, while using branches without gibberellic acid spraying, with the same softening method, the breakage rate is 86.7%. This patented technology is simple, convenient, and highly efficient, allowing for large-scale production. It enhances the ornamental and economic value of potted large-flowered hydrangeas, thus promoting the development of the hydrangea industry. Attached Figure Description

[0015] Figure 1 The image shows the softening treatment and shaping result of the large-flowered hydrangea in Example 1; Figure 2 These are images showing different softening treatment stages and shaping results of the large-flowered hydrangea in Example 2; Figure 3 These are images showing different softening treatment stages and shaping results of the large-flowered hydrangea in Example 3; Figure 4 These are images showing different softening treatment stages and shaping results of the large-flowered hydrangea in Example 4; Figure 5 This is a diagram showing the results of the rejuvenation culture of *Hydrangea macrophylla* in Example 4; Figure 6 This is a finished product image of the large hydrangea design from Example 4; Figure 7 This is a comparison chart of whether or not gibberellic acid was sprayed on the hydrangea in Example 5. Detailed Implementation

[0016] The technical solutions provided by the present invention will be described in detail below with reference to the embodiments, but they should not be construed as limiting the scope of protection of the present invention.

[0017] Example 1

[0018] On April 1st, several large-flowered hydrangea (variety 'Jinling Chumeng') cuttings with stem diameters of 3.5-4.5 mm were selected for propagation. After pruning, four healthy branches were retained. These were planted in pots with a diameter of 15 cm and a height of 15 cm. The pots contained a cultivation substrate composed of peat moss, perlite, and coconut fiber in a 1:1:1 volume ratio, with 0.1 kg of bentonite added per cubic meter of substrate. The substrate was 15 cm thick. The cuttings were pinched back for the first time when they reached 5 cm and again when they reached 10 cm.

[0019] When the hydrangea branches reach 15 cm in length, spray with a 40 mg / L gibberellic acid solution, using 30 ml of water per branch, once every 15 days, for a total of 3 sprays. When the branches reach approximately 65 cm in length, prune them, retaining 2 strong branches. Wrap these branches with 2.0 mm diameter aluminum wire to soften them. On August 1st, control the moisture content of the cultivation substrate to approximately 60%, and withhold water for 2 days (if...). Figure 1 As shown in A), the branches can be twisted and fixed into a shape (such as...). Figure 1 (As shown in B) After rehydration (adding water until the moisture content of the cultivation substrate is 100%), place it in a shaded area.

[0020] Add 5 cm of a substrate made of peat moss, perlite, and coconut coir in a 1:1:1 volume ratio to a large flowerpot with a mouth diameter of 25 cm and a diameter of 25 cm. Place the shaped large hydrangea, along with its pot, into the large flowerpot and add 10 cm of the above substrate to the large flowerpot for rejuvenation cultivation.

[0021] After the leaves fall in winter, prune any branches that affect the shape, adjust the overall shape, remove the potted plant from the large pot, trim any excessively long roots, and then replant it in a ceramic pot containing a growing medium made of peat moss, perlite, and coconut fiber in a 1:1:1 volume ratio, with 0.2 kg of bentonite added per cubic meter of medium. The thickness should be 25-30 cm (depending on the height of the pot). This will result in a cascade-style hydrangea.

[0022] Example 2

[0023] On April 1st, several large-flowered hydrangea (variety 'Hana Temari') cuttings with stem diameters of 5.5-6.5 mm were selected and pruned, retaining 4 healthy branches. These were planted in pots with a diameter of 15 cm and a height of 15 cm. The pots contained a growing medium composed of peat moss, perlite, and coconut fiber in a 1:1:1 volume ratio, with 0.1 kg of bentonite added per cubic meter of medium. The growing medium was 15 cm thick. The cuttings were pinched back for the first time when they reached 5 cm and again when they reached 10 cm.

[0024] When the hydrangea branches reach 15 cm in length, spray with a 40 mg / L gibberellic acid solution, using 30 ml of water per branch, once every 15 days, for a total of 3 sprays. When the branches reach approximately 65 cm in length, prune them, retaining 3 strong branches. Wrap these branches with 2.0 mm diameter aluminum wire to soften them. On August 1st, control the moisture content of the cultivation substrate to approximately 60%, and withhold water for 2 days (if...). Figure 2 As shown in A), slightly bend the branches (as shown in A). Figure 2(As shown in B) and rehydrate (add water until the moisture content of the cultivation substrate is 100%), 2 days after rehydration (if... Figure 2 (As shown in C) Once again, control the moisture content of the cultivation substrate to around 60%. After controlling the water for 2 days, the branches can be twisted and shaped (e.g., Figure 2 (As shown in D) and rehydrate (add water until the moisture content of the cultivation substrate is 100%) and place it in a shaded area.

[0025] Add 5 cm of a substrate made of peat moss, perlite, and coconut coir in a 1:1:1 volume ratio to a large flowerpot with a mouth diameter of 25 cm and a diameter of 25 cm. Place the shaped large hydrangea, along with its pot, into the large flowerpot and add 10 cm of the above substrate to the large flowerpot for rejuvenation cultivation.

[0026] After the leaves fall in winter, prune any branches that affect the shape, adjust the overall shape, remove the potted plant from the large pot, trim any excessively long roots, and then replant it in a ceramic pot containing a growing medium made of peat moss, perlite, and coconut fiber in a 1:1:1 volume ratio, with 0.2 kg of bentonite added per cubic meter of medium. The thickness should be 25-30 cm (depending on the height of the pot). This will result in a cascade-style hydrangea.

[0027] Example 3

[0028] On April 1st, several large-flowered hydrangea (variety 'Huabao') cuttings with stem diameters of 7.5-9 mm were selected and pruned, retaining 4 strong branches. These were planted in pots with a diameter of 15 cm and a height of 15 cm. The pots contained a growing medium composed of peat moss, perlite, and coconut fiber in a 1:1:1 volume ratio, with 0.1 kg of bentonite added per cubic meter of medium. The growing medium was 15 cm thick. The cuttings were pinched back for the first time when they reached 5 cm and again when they reached 10 cm.

[0029] When the hydrangea branches reach 15 cm in length, spray with a 40 mg / L gibberellic acid solution, using 30 ml of water per branch, once every 15 days, for a total of 3 sprays. When the branches reach approximately 65 cm in length, prune them, retaining 3 strong branches. Wrap these branches with 2.0 mm diameter aluminum wire to soften them. On August 1st, control the moisture content of the cultivation substrate to approximately 60%, and withhold water for 2 days (if...). Figure 3 As shown in A), slightly bend the branches (as shown in A). Figure 3 (As shown in B) and rehydrate (add water until the moisture content of the cultivation substrate is 100%), rehydrate for 2 days (as shown in B). Figure 3 After (as shown in C), the moisture content of the cultivation substrate is controlled again to around 60%. After controlling the water for 2 days, the shape is adjusted (as shown in C). Figure 3(As shown in D) and rehydrate (add water until the moisture content of the cultivation substrate is 100%), rehydrate for 2 days (if... Figure 3 After controlling the moisture content of the cultivation substrate to around 60% again (as shown in E), the branches can be twisted and shaped (e.g., ...) after 2 days of water control. Figure 3 (As shown in F) and rehydrate (add water until the moisture content of the cultivation substrate is 100%) and place in a shaded area.

[0030] Add 5 cm of a substrate made of peat moss, perlite, and coconut coir in a 1:1:1 volume ratio to a large flowerpot with a mouth diameter of 25 cm and a diameter of 25 cm. Place the shaped large hydrangea, along with its pot, into the large flowerpot and add 10 cm of the above substrate to the large flowerpot for rejuvenation cultivation.

[0031] After the leaves fall in winter, prune any branches that affect the shape, adjust the overall shape, remove the potted plant from the large pot, trim any excessively long roots, and then replant it in a ceramic pot containing a growing medium made of peat moss, perlite, and coconut fiber in a 1:1:1 volume ratio, with 0.2 kg of bentonite added per cubic meter of medium. The thickness should be 25-30 cm (depending on the height of the pot). This will result in a cascade-style hydrangea.

[0032] Example 4

[0033] On April 1st, several large-flowered hydrangea (variety 'Huabao') cuttings with stem diameters of 7.5-9 mm were selected and pruned, retaining 4 strong branches. These were planted in pots with a diameter of 15 cm and a height of 15 cm. The pots contained a growing medium composed of peat moss, perlite, and coconut fiber in a 1:1:1 volume ratio, with 0.1 kg of bentonite added per cubic meter of medium. The growing medium was 15 cm thick. The cuttings were pinched back for the first time when they reached 5 cm and again when they reached 10 cm.

[0034] When the hydrangea branches reach 15 cm in length, spray with a 40 mg / L gibberellic acid solution, using 30 ml of water per branch, once every 15 days, for a total of 3 sprays. When the branches reach approximately 65 cm in length, prune them, retaining 2 strong branches. Wrap these branches with 2.0 mm diameter aluminum wire to soften them. On August 1st, control the moisture content of the cultivation substrate to approximately 70%, then place them in a dark cold storage at approximately 8℃ without watering. After 4 days of treatment (if...),... Figure 4 As shown in A), the branches can be twisted and fixed into a shape (such as...). Figure 4 (As shown in B) and rehydrate (add water until the moisture content of the cultivation substrate is 100%) and place it in a shaded area.

[0035] Add 5 cm of a substrate mixture of peat moss, perlite, and coconut coir in a 1:1:1 volume ratio to a large 25 cm diameter pot. Place the finished hydrangea, pot and all, into the large pot, and add another 10 cm of the same substrate. Rejuvenate the plant by adding more of this substrate. Figure 5 As shown.

[0036] After the leaves fall in winter, prune any branches that affect the shape, adjust the overall shape, and remove the potted plant from the large pot. Trim any excessively long roots, and then replant it in a ceramic pot containing a growing medium made of peat moss, perlite, and coconut fiber in a 1:1:1 volume ratio, with 0.2 kg of bentonite added per cubic meter of medium. The thickness should be 25-30 cm (depending on the height of the pot). This will result in a cascade-style hydrangea. The finished product after flowering is shown in the image below. Figure 6 As shown.

[0037] Example 5

[0038] Large-flowered hydrangea cuttings (variety 'Jinling Chumeng') with similar growth conditions were selected and sprayed with gibberellic acid solution and aqueous solution (CK) respectively. The specific procedure was as follows: On April 2nd, gibberellic acid was sprayed for the first time with a concentration of 40 mg / L solution, using 30 ml of water per cutting; on April 17th, the same concentration of gibberellic acid solution was sprayed for the second time; and on May 2nd, the same concentration of gibberellic acid solution was sprayed for the third time. Spraying was performed every 15 days for a total of 3 times. The CK group was sprayed with the same amount of aqueous solution at the same time. The results showed that the branches sprayed with gibberellic acid were 15-20 cm longer than those in the control group (e.g., ...). Figure 7 (As shown).

[0039] Twenty plants with similar growth conditions and gibberellin-treated branches approximately 65 cm in length were selected. The branches were pruned, retaining three strong branches, and then wrapped with 2.0 mm diameter aluminum wire. The moisture content of the cultivation substrate was then controlled to approximately 60%, and after 2 days of water withholding, the branches were twisted and shaped. Twenty untreated plants were also selected, their branches pruned, retaining three strong branches, and then wrapped with 2.0 mm diameter aluminum wire, directly twisted and shaped. Three parallel experiments were conducted. The results showed that the branches softened after spraying with gibberellin solution, making them less prone to breakage during twisting, with a breakage rate of only 8.3%, while the breakage rate of the control group was 86.7%. This indicates that the method of this invention can significantly improve the success rate of branch twisting.

[0040] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for cultivating large-flowered hydrangeas in a cascade style, characterized in that, Includes the following steps: 1) Pre-cultivation of branches: After cultivating the large-flowered hydrangea cuttings, pinch off the tips, or prune the perennial branches to a length of 8-12cm; 2) Cultivation and softening of shaping branches: When the pre-cultivated large-flowered hydrangea cuttings or perennial seedlings grow to 15-20 cm, spray them with gibberellic acid solution. When they grow to 60-70 cm, soften the branches. 3) Shaping treatment: Twist the softened branches into a cliff-like shape, fix them in place, and place them in a shaded area; 4) Rejuvenation cultivation: Place the shaped large-flowered hydrangea, along with its pot, into a large flowerpot for cultivation; 5) After cultivation, prune and plant in a porcelain pot to obtain a large hydrangea with a cliff-like shape.

2. The method for cultivating large-flowered hydrangeas in a cascade style as described in claim 1, characterized in that, The cultivation substrate mentioned in step 1) is a mixture of peat, perlite and coconut blocks in a volume ratio of 1~2:1~2:1~2, with 0.1 kg of bentonite added to each cubic meter of substrate.

3. The method for cultivating large-flowered hydrangeas in a cascade style as described in claim 1, characterized in that, The pinching treatment mentioned in step 1) is as follows: pinch the cuttings once when they grow to 4-6 cm, and pinch them a second time when they grow to 8-12 cm.

4. The method for cultivating large-flowered hydrangeas in a cascade style as described in claim 1, characterized in that, The concentration of gibberellic acid solution mentioned in step 2) is 35~45 mg / L, and it is sprayed once every 14~16 days, for a total of 3~4 times.

5. The method for cultivating large-flowered hydrangeas in a cascade style as described in claim 1, characterized in that, The softening treatment described in step 2) is as follows: For plants with branch diameter <5 mm, control the moisture content of the cultivation substrate to 50-70% and withhold water for 2-4 days; for plants with branch diameter 5-7 mm, first control the moisture content of the cultivation substrate to 50-70%, withhold water for 2-3 days, then rehydrate to 100% moisture content for 2-3 days, and then control the moisture content of the cultivation substrate to 50-70% again and withhold water for 2-4 days; for plants with branch diameter >7 mm, control the moisture content of the substrate to 65-70%, place them in a cold storage at 7-10℃, and treat for 3-5 days. Alternatively, first control the moisture content of the cultivation substrate to 50-70%, control the water for 2-3 days, then rehydrate to 100% moisture content for 2-3 days. Repeat this process, controlling the moisture content of the cultivation substrate to 50-70% again, controlling the water for 2-3 days, then rehydrating to 100% moisture content for 2-3 days. Finally, control the moisture content of the cultivation substrate to 50-70% again and control the water for 2-4 days.

6. The method for cultivating large-flowered hydrangeas in a cascade style as described in claim 1, characterized in that, The large flowerpot mentioned in step 4) contains a substrate of 3-5 cm thickness. After placing the large hydrangea and its pot together in the large flowerpot, add another 8-10 cm of substrate.

7. The method for cultivating large-flowered hydrangeas in a cascade style as described in claim 6, characterized in that, The matrix is ​​a mixture of peat, perlite and coconut coir in a volume ratio of 1~2:1~2:1~2.

8. The method for cultivating large-flowered hydrangeas in a cascade style as described in claim 1, characterized in that, The ceramic pot described in step 5) contains a cultivation substrate composed of peat, perlite, coconut fiber, and a volume ratio of 8~12:8~12:8~12, with 0.2 kg of bentonite added per cubic meter of cultivation substrate.

9. An application of gibberellic acid solution in the design of large hydrangeas, characterized in that, The concentration of the gibberellic acid solution is 35~45 mg / L.

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