Tips for Planting Dahlias Successfully
seed dahlias
Multiplication
Seed:
Used for obtaining new cultivars after hybridization, placed in containers in March and for the production of plants in clumps. It is a difficult and used only by growers who are dedicated to the development of new varieties system. Were sown in pots with topsoil mixed with sand, which are put in the greenhouse at a temperature of 15 º C. Plant two weeks after born, may then be transplanted into other larger containers, leaving between them about 5 cm, and when they are transplanted four sheets a second time. As of May may finally transplanted into the ground, leaving between them about 80 cm apart. Generally flower in the same year. In November, when ends vegetation, plants should be started and keep in a dry tuber.
Cuttings:
This is separate from the main tubers, outbreaks of native vegetation. It takes place from February to April. First the cultivation of tubers in greenhouses in January-February on heated beds at 15-20 ° C is performed in a peat and sand in equal parts. Cuttings are removed 5 to 10 cm from the mother tuber with a disinfected knife. The cuttings are placed under glass in trays or pots 7 at a temperature of 18 º C in a fairly rich earthy blend (enriched peat). Watered periodically as rain, so the soil will stay moist. Rooting takes place in two or three weeks (20-60 tuber cuttings in 2 to 3 months). The plants obtained are clamped at least once.
Division of tubers:
Multiplication by division of tubers, is the most simple and easy to practice and has the advantage that invigorates the plant. Dahlia is provided with a number of underground tubers, each of which has a corresponding pad on the fleshy part. When it comes to the division of the tuber must ensure that each portion has a corresponding yolk, since otherwise it would be impossible to play. The division of the rhizomes should be done at the same time of planting. The cultivation is carried out in a greenhouse in a light and moist substrate. Trunks retaining at least one cutting element neck by tuber elucidated.
Requirements
A
rustic regarding plant soil, although it prefers loamy soils with
perfect drainage and a pH between 6 and 8, and possessing a high content
of organic matter and nutrients.
Prefer temperatures between 18 and 23 º C and a relative humidity of 75 to 78%.
Dahlias are plants that are grown in sunny areas, but also can be found in partial shade.
Prefer temperatures between 18 and 23 º C and a relative humidity of 75 to 78%.
Dahlias are plants that are grown in sunny areas, but also can be found in partial shade.
Special Cut Flower Crop
The careful soil is one of the most important for obtaining a high production quality flower stages .
After completing the site preparation work will proceed to the opening of the grooves with a depth between 25 and 30 cm. The distance between plants varies between 0.50 and 0.70 m depending on the terms of the variety grown , soil, farming techniques , etc. .
The first irrigation is generally provided at the end of the plantation , when this is done with rooted cuttings or tubers .
Irrigation scheduling is aimed to avoid sudden changes in the water content in the soil and to ensure adequate moisture for root development .
Fertilization responds to specific soil conditions as determined by their respective analyzes , although usually recommend two formulas : 2:1:2 and 1:2:3 .
You have to keep the crop free of weeds , and the loose soil , improving aeration, allowing greater infiltration of irrigation water and retains moisture in the lower layers.
The grip is made after planting on young stems below the two pairs of terminal leaves (only in the case of large-flowered dahlias ) . Removing the terminal bud occurs on development of lateral branches.
Flower production of good size and quality for cutting requires control and guide flowering , which is carried out by removing the buttons and secondary buds located in the axils of the two pairs of leaves that are immediately below the terminal bud , this operation must be performed before these shoots reach 5cm . Removing them will allow a main flower stalks that reach 60 to 70 cm in length.
Dahlia begins flowering at 60 or 70 days approximately on planting tubers , lasting for 45 to 50 days , during which Iran cut flowers as they open , so the collection is done daily . Flowers always cut when they have completed their opening and so that they have greater long stalks possible, as this condition is decisive in the commercial classification of the flower.
After nine months on the plantation , depending on variety and growing conditions are applicable to removal of the need for the production of cuttings material followed by mechanical removal of the tubers.
The cut stems are placed in a local conservation . Selection , cleaning and wintering at 5-10 ° C , relative humidity of 80-85% is done to avoid significant weight loss of tubers. The minimum weight that must have tubers to be marketed is at least 40 g for large dahlias and 25 g for dwarf dahlias.
After completing the site preparation work will proceed to the opening of the grooves with a depth between 25 and 30 cm. The distance between plants varies between 0.50 and 0.70 m depending on the terms of the variety grown , soil, farming techniques , etc. .
The first irrigation is generally provided at the end of the plantation , when this is done with rooted cuttings or tubers .
Irrigation scheduling is aimed to avoid sudden changes in the water content in the soil and to ensure adequate moisture for root development .
Fertilization responds to specific soil conditions as determined by their respective analyzes , although usually recommend two formulas : 2:1:2 and 1:2:3 .
You have to keep the crop free of weeds , and the loose soil , improving aeration, allowing greater infiltration of irrigation water and retains moisture in the lower layers.
The grip is made after planting on young stems below the two pairs of terminal leaves (only in the case of large-flowered dahlias ) . Removing the terminal bud occurs on development of lateral branches.
Flower production of good size and quality for cutting requires control and guide flowering , which is carried out by removing the buttons and secondary buds located in the axils of the two pairs of leaves that are immediately below the terminal bud , this operation must be performed before these shoots reach 5cm . Removing them will allow a main flower stalks that reach 60 to 70 cm in length.
Dahlia begins flowering at 60 or 70 days approximately on planting tubers , lasting for 45 to 50 days , during which Iran cut flowers as they open , so the collection is done daily . Flowers always cut when they have completed their opening and so that they have greater long stalks possible, as this condition is decisive in the commercial classification of the flower.
After nine months on the plantation , depending on variety and growing conditions are applicable to removal of the need for the production of cuttings material followed by mechanical removal of the tubers.
The cut stems are placed in a local conservation . Selection , cleaning and wintering at 5-10 ° C , relative humidity of 80-85% is done to avoid significant weight loss of tubers. The minimum weight that must have tubers to be marketed is at least 40 g for large dahlias and 25 g for dwarf dahlias.
Growing Pot
For
potted dahlias can occur with dwarf varieties developed from seeds or
tubers using vegetatively propagated varieties decreasing its size by
growth retardants .
For varieties of seed is required between 8 and 12 weeks from sowing to flowering. The time when most easily grown from February to May.
The cultivation temperature should be between 18-20 ° C. The plants bear very bad temperatures below 9 ° C.
For plants propagated from corms need about 6 weeks. Pots are typically used 20 to 25 cm .
Fungicide treatments will be given at the time of planting to avoid rot .
The substrate used may be a 1:1:1 mixture of sterilized soil, peat and perlite . Ideally, the peat is enriched in potassium , as Dahlia has a high intake of iodine , because of its large capacity bloom.
One slow release fertilizer fertigation applied at 100 ppm of a balanced subscriber may be used or 2:1:2 .
For varieties of seed is required between 8 and 12 weeks from sowing to flowering. The time when most easily grown from February to May.
The cultivation temperature should be between 18-20 ° C. The plants bear very bad temperatures below 9 ° C.
For plants propagated from corms need about 6 weeks. Pots are typically used 20 to 25 cm .
Fungicide treatments will be given at the time of planting to avoid rot .
The substrate used may be a 1:1:1 mixture of sterilized soil, peat and perlite . Ideally, the peat is enriched in potassium , as Dahlia has a high intake of iodine , because of its large capacity bloom.
One slow release fertilizer fertigation applied at 100 ppm of a balanced subscriber may be used or 2:1:2 .
Caring for Dahlias
Remove all dead flowers as they appear. Once the stems are completely discolored pódalos as short as possible.
Dahlias withstand temperatures down to -5 degrees, although in winter it is important to protect your base with a large vegetation cover. If in your area are common frosts and very cold temperatures in early winter can remove the tubers after the first frost and store in a dry, protected from light place until the following spring.
To do wait until the foliage has fallen or withered completely. Cut a 10 cm soil. Starts rhizomes and let dry, wiping them with a brush. If your area is not a lot of cold, it is still appropriate to protect the tubers of dahlias with mulch of dead leaves in the winter.
Find more tips for caring for dahlias clicking here.
irrigation
Dahlia is a hardy plant enough, but gladly appreciate that you water during periods of extreme heat or prolonged drought. You should always water them without wetting the foliage to avoid any risk of disease. Watering preferably make them at night to prevent evaporation of water.
Prolong flowering in autumn
It is possible to prolong flowering dahlias beyond the summer, even until the end of October. To do this we must give to the flowering plant fertilizer once a week until the end of flowering plants.
Remove spent flowers as they appear to not exhaust the dahlia and so attachment is easy growth of new flowers.
Dahlias withstand temperatures down to -5 degrees, although in winter it is important to protect your base with a large vegetation cover. If in your area are common frosts and very cold temperatures in early winter can remove the tubers after the first frost and store in a dry, protected from light place until the following spring.
To do wait until the foliage has fallen or withered completely. Cut a 10 cm soil. Starts rhizomes and let dry, wiping them with a brush. If your area is not a lot of cold, it is still appropriate to protect the tubers of dahlias with mulch of dead leaves in the winter.
Find more tips for caring for dahlias clicking here.
irrigation
Dahlia is a hardy plant enough, but gladly appreciate that you water during periods of extreme heat or prolonged drought. You should always water them without wetting the foliage to avoid any risk of disease. Watering preferably make them at night to prevent evaporation of water.
Prolong flowering in autumn
It is possible to prolong flowering dahlias beyond the summer, even until the end of October. To do this we must give to the flowering plant fertilizer once a week until the end of flowering plants.
Remove spent flowers as they appear to not exhaust the dahlia and so attachment is easy growth of new flowers.
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