A Detailed Guide to Dahlia Planting Methods with Pictures to Enjoy

The dahlia is a flower native to Mexico. According to statistics, there are already more than 30,000 varieties worldwide, making it one of the world's famous flowers. The dahlia's flower colors are rich and varied, and its flower forms are also very beautiful, so next let's take a look at dahlia planting methods, and also enjoy some dahlia pictures together!


Key Points for Potted Culture

Cuttings with Flower Buds

  For cuttings with flower buds, this is how it is understood: that is, when the flower buds on the plant have already formed but are not yet visible, and the buds can only be seen when the young heart leaves are separated, then take the branch for cutting. The time to take the branch should be early rather than late. If the flowering branch has already shown buds, then the flowers that bloom after rooting will be small and not brightly colored, and will not reflect the characteristics of the variety.

  In order to obtain the best cutting time (air temperature not exceeding 25°C) for cuttings, the mother plant should be cultivated in advance. If conditions permit, you can use a greenhouse to force sprouting, grow seedlings in pots, plant them in the ground after the last frost, strengthen management, and when the temperature is suitable for cuttings, provide branches with flower buds. The temperature range in which cuttings can be carried out is between 10-30°C; the most suitable temperature for rooting is 18-22°C; above 30°C the cuttings tend to rot.

  By combining the local climate conditions and the characteristics of the cultivated variety, you can decide how early or late to cultivate the mother plant. For cutting temperature, grasp the principle of preferring lower over higher; low only prolongs the time to survive, while high causes the cuttings to rot and all effort is wasted. If the temperature is suitable (18-22°C), roots can form and the plant can survive after about 20 days. After surviving, it should be potted promptly; a flower pot with a diameter of 15-15 cm is more suitable.


  When potting, be very careful not to damage the roots. For pot cuttings, the whole pot can be turned out, the river sand washed clean, and the plants separated for replanting; for ground cuttings, you can flood them thoroughly with water and take the seedlings as you water. After potting, place them in semi-shade for 3-5 days (remember to spray water on the leaves), then move them to a place with ample sunlight and good ventilation for cultivation.

  The key to whether potted dahlias grow well lies in strengthening the management of the plant's potting soil, giving sufficient light, frequently applying water and fertilizer, and timely management such as shaping and pruning.

Management of Potting Soil

  Dahlias are suited to loose, humus-rich, well-drained sandy loam. For the soil used for planting potted dahlias, it is generally suitable to use a culture soil prepared with vegetable garden soil (50%), leaf mold (20%), sandy soil (20%) and dried manure (10%). Compacted soil easily causes waterlogging and root rot, so it cannot be used. In daily management, loosen the soil promptly and drain excess water from the pot. If the dahlia's fleshy tuberous roots contain too much water in the soil, it will cause poor air permeability, and at that time rot will occur.

Light

  Dahlias like light, but they are not shade-tolerant. If placed in a shaded place for a long time, they will grow poorly, causing weak roots, thin leaves and slender stems, small and pale flowers, and in some cases even failure to bloom. Therefore, potted dahlias should be placed in a place with ample sunlight, with daily light required to be more than 6 hours, so that the plants are sturdy and the flowers are large and full. If daily sunlight is less than 4 hours, then stem and leaf branching and flower bud formation will be affected to a certain extent; especially under cloudy and rainy conditions with little sunlight, flowering will be poor, stem and leaf growth will be poor, and they will be prone to disease.


Watering

  Dahlias like water, but they are very averse to waterlogging. They are afraid of both waterlogging and drought. This is because the large-flowered type has fleshy tuberous roots, and too much watering easily causes the roots to rot. But dahlias have luxuriant branches and leaves and a high evaporation rate, so they need more water. If they wilt due to lack of water and are not replenished in time, and are then exposed to sunlight, in mild cases the leaf edges will scorch, and in severe cases the basal leaves will fall off.

  Therefore, watering should follow the principle of "water thoroughly when dry." Generally, in the early growth stage of small seedlings, the water requirement is limited; on sunny days, water once a day, keeping the soil slightly moist as the standard; too dry or too wet are both unsuitable. In the later growth stage, branches and leaves are luxuriant and consume more water, on sunny days or days with north wind. Note that water shortage is likely at noon or in the evening, so the amount of watering should be appropriately increased.

Proper Fertilization

  The dahlia is a flower that likes fertilizer. Starting from the seedling stage, generally apply a dilute liquid fertilizer once every 10-15 days. After budding, apply once every 7-10 days. When the flower buds begin to show color, fertilization with liquid fertilizer should be stopped. Fertilization is not suitable when the temperature is high. The amount of fertilizer applied should be determined according to the plant's growth condition.


  If the leaves are light in color and thin, it is a sign of fertilizer deficiency; conversely, if fertilizer is excessive, the leaf edges will scorch or the leaf tips will turn yellow. If the leaves are thick and dark green in color, it shows that fertilization is appropriate. The concentration of fertilization should be increased each time, so that the stems can become thick and strong.

Shaping and Pruning

  For the pruning of potted dahlias, it should be handled flexibly according to the variety. Generally, large varieties use single-stem shaping, and medium varieties use 4-stem shaping. Single-stem shaping means retaining the terminal bud and removing all axillary buds, so that nutrients are concentrated, forming a single-stem dahlia with a short plant and large flowers.

Inserting Stakes to Support the Plant

  The stems of dahlias are both hollow and brittle, and are especially easy to blow over and break in the wind. Bamboo stakes should be inserted in time for support. Inserting bamboo can also prevent the branches from growing crooked and improve the ornamental value of potted plants. When the plant grows to more than 30 cm tall, a small bamboo stake should be inserted beside each branch, and fixed with hemp fiber (or thin string); as the plant grows taller, longer bamboo stakes should also be replaced in time, and the last small bamboo stake inserted should be propped against the lower part of the flower bud.


Overwintering the Plant

  The tuberous roots of dahlias cannot be frozen. In November, after the branches and leaves wither, the aboveground part should be cut off, moved indoors, and stored in the original pot. You can also take out the tuberous roots and let them dry for 1-2 days, then bury them indoors in slightly damp sandy soil, with the temperature not exceeding 5 degrees, and pot and plant them again in the following spring.

Summary: The above is the relevant introduction to dahlia planting methods. What have you gained from it? Different plants have different planting methods. In our lives, our understanding of plants is not especially extensive; after all, there are really too many kinds of flowers, so please pay extra attention when planting!

Dahlia Planting Methods, Dahlia Pictures to Enjoy

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Dahlia Growing Methods and Precautions, Dahlia Pictures to Enjoy

The dahlia is also called passionflower and Ternstroemia dahlia. Its flower form is full, elegant and noble, with brilliant colors and a harmonious demeanor. Mexicans regard it as a symbol of generosity and magnificence, so they honor it as the national flower. According to statistics, there are already more than 30,000 varieties worldwide, making it one of the world's famous flowers. No wonder dahlias have developed so quickly. If you have seen the dahlia's rich and varied colors and passionate fiery appearance, you will also fall in love with them involuntarily. So next, let's take a look at dahlia growing methods and precautions!

Dahlia Growing Methods and Precautions

Key Points for Potted Culture: Cuttings with Flower Buds

For cuttings with flower buds, this is how it is understood: that is, when the flower buds on the plant have already formed but are not yet visible, and the buds can only be seen when the young heart leaves are separated, then take the branch for cutting. The time to take the branch should be early rather than late. If the flowering branch has already shown buds, then the flowers that bloom after rooting will be small and not brightly colored, and will not reflect the characteristics of the variety.

In order to obtain the best cutting time (air temperature not exceeding 25°C) for cuttings, the mother plant should be cultivated in advance. If conditions permit, you can use a greenhouse to force sprouting, grow seedlings in pots, plant them in the ground after the last frost, strengthen management, and when the temperature is suitable for cuttings, provide branches with flower buds. The temperature range in which cuttings can be carried out is between 10-30°C; the most suitable temperature for rooting is 18-22°C; above 30°C the cuttings tend to rot.

Dahlia Growing Methods and Precautions

By combining the local climate conditions and the characteristics of the cultivated variety, you can decide how early or late to cultivate the mother plant. For cutting temperature, grasp the principle of preferring lower over higher; low only prolongs the time to survive, while high causes the cuttings to rot and all effort is wasted. If the temperature is suitable (18-22°C), roots can form and the plant can survive after about 20 days. After surviving, it should be potted promptly; a flower pot with a diameter of 15—15 cm is more suitable.

When potting, be very careful not to damage the roots. For pot cuttings, the whole pot can be turned out, the river sand washed clean, and the plants separated for replanting; for ground cuttings, you can flood them thoroughly with water and take the seedlings as you water. After potting, place them in semi-shade for 3-5 days (remember to spray water on the leaves), then move them to a place with ample sunlight and good ventilation for cultivation.

The key to whether potted dahlias grow well lies in strengthening the management of the plant's potting soil, giving sufficient light, frequently applying water and fertilizer, and timely management such as shaping and pruning.

Dahlia Growing Methods and Precautions

Management of Potting Soil

Dahlias are suited to loose, humus-rich, well-drained sandy loam. For the soil used for planting potted dahlias, it is generally suitable to use a culture soil prepared with vegetable garden soil (50%), leaf mold (20%), sandy soil (20%) and dried manure (10%). Compacted soil easily causes waterlogging and root rot, so it cannot be used. In daily management, loosen the soil promptly and drain excess water from the pot. If the dahlia's fleshy tuberous roots contain too much water in the soil, it will cause poor air permeability, and at that time rot will occur.

Light

Dahlias like light, but they are not shade-tolerant. If placed in a shaded place for a long time, they will grow poorly, causing weak roots, thin leaves and slender stems, small and pale flowers, and in some cases even failure to bloom. Therefore, potted dahlias should be placed in a place with ample sunlight, with daily light required to be more than 6 hours, so that the plants are sturdy and the flowers are large and full. If daily sunlight is less than 4 hours, then stem and leaf branching and flower bud formation will be affected to a certain extent; especially under cloudy and rainy conditions with little sunlight, flowering will be poor, stem and leaf growth will be poor, and they will be prone to disease.

Dahlia Growing Methods and Precautions

Watering

Dahlias like water, but they are very averse to waterlogging. They are afraid of both waterlogging and drought. This is because the large-flowered type has fleshy tuberous roots, and too much watering easily causes the roots to rot. But dahlias have luxuriant branches and leaves and a high evaporation rate, so they need more water. If they wilt due to lack of water and are not replenished in time, and are then exposed to sunlight, in mild cases the leaf edges will scorch, and in severe cases the basal leaves will fall off.

Therefore, watering should follow the principle of “water thoroughly when dry.” Generally, in the early growth stage of small seedlings, the water requirement is limited; on sunny days, water once a day, keeping the soil slightly moist as the standard; too dry or too wet are both unsuitable. In the later growth stage, branches and leaves are luxuriant and consume more water, on sunny days or days with north wind. Note that water shortage is likely at noon or in the evening, so the amount of watering should be appropriately increased.

Proper Fertilization

The dahlia is a flower that likes fertilizer. Starting from the seedling stage, generally apply a dilute liquid fertilizer once every 10-15 days. After budding, apply once every 7-10 days. When the flower buds begin to show color, fertilization with liquid fertilizer should be stopped. Fertilization is not suitable when the temperature is high. The amount of fertilizer applied should be determined according to the plant's growth condition.

If the leaves are light in color and thin, it is a sign of fertilizer deficiency; conversely, if fertilizer is excessive, the leaf edges will scorch or the leaf tips will turn yellow. If the leaves are thick and dark green in color, it shows that fertilization is appropriate. The concentration of fertilization should be increased each time, so that the stems can become thick and strong.

Dahlia Growing Methods and Precautions

Shaping and Pruning

For the pruning of potted dahlias, it should be handled flexibly according to the variety. Generally, large varieties use single-stem shaping, and medium varieties use 4-stem shaping. Single-stem shaping means retaining the terminal bud and removing all axillary buds, so that nutrients are concentrated, forming a single-stem dahlia with a short plant and large flowers.

Inserting Stakes to Support the Plant

The stems of dahlias are both hollow and brittle, and are especially easy to blow over and break in the wind. Bamboo stakes should be inserted in time for support. Inserting bamboo can also prevent the branches from growing crooked and improve the ornamental value of potted plants. When the plant grows to more than 30 cm tall, a small bamboo stake should be inserted beside each branch, and fixed with hemp fiber (or thin string); as the plant grows taller, longer bamboo stakes should also be replaced in time, and the last small bamboo stake inserted should be propped against the lower part of the flower bud.

Overwintering the Plant

The tuberous roots of dahlias cannot be frozen. In November, after the branches and leaves wither, the aboveground part should be cut off, moved indoors, and stored in the original pot. You can also take out the tuberous roots and let them dry for 1-2 days, then bury them indoors in slightly damp sandy soil, with the temperature not exceeding 5 degrees, and pot and plant them again in the following spring.