Introduction to planting methods of Dahlia

Dahlias are gorgeous and colorful. There are many friends who like dahlias. How to raise a beautiful dahlia? Today, let's take a look at what aspects we should pay attention to in planting dahlias.

Brief introduction of Dahlia

Dahlia, alias Dahlia, Tianzhu Peony, Oriental Chrysanthemum, Dahlia, Sweet Potato, Compositae, Dahlia, perennial herbs, with huge rod-shaped roots. Stem erect, much branched, stout. Native to Mexico, Mexicans regard it as a symbol of generosity and richness, so they respect it as the national flower.

At present, it is planted in most countries in the world, and new varieties are selected from time to time. According to statistics, there are more than 30,000 dahlia varieties, which is one of the species with the largest number of flower varieties in the world. Dahlia flower color flower shape reputation is various, rich and colorful, is one of the world's famous flowers; another can promote blood circulation and dissipate blood stasis, has a certain medicinal value.

There are many flower patterns of dahlia, which can be divided into sunflower type, orchid type, chrysanthemum type, spherical type, peony type, cactus flower type, rosette type and so on. Dahlia has multiple petals, with red, yellow, orange, purple, white and so on. All kinds of colors are colorful and intoxicating. One of the more distinctive is the thousand-petal flowers with red stripes in the white petals, which are like red agate embedded in white jade, enchanting and eye-catching.

The maintenance of dahlias should be avoided

Dahlias are very pleasing and many people like to plant dahlias. Now let's introduce the conservation taboos of dahlias. It is appropriate to select dwarf varieties and avoid planting tall varieties; basins should be deep, large and permeable, and shallow, small and light pots should be avoided; neutral sandy loam should be used, heavy clay should not be used; soil should be moist, drought and waterlogging should be avoided; thin fertilizer should be applied frequently, avoid thick fertilizer and nitrogen fertilizer alone; it is appropriate to place sufficient sunshine and shade; warm and cool, avoid high temperature, sultry and frost; good ventilation and strong wind should be avoided.

The planting method of Dahlia

1. Remove dry roots and split roots if there are too many tubers (split them with a small pruning knife) pay attention to leaving adventitious buds and some lateral roots on each rhizome.

two。 Dig-dig pits about 20cm deep, loosen the soil, and remove boulders and weed roots. If the soil contains a large amount of sand, cultivate it with soil compost or compost.

3. In order to provide the nutrition especially nitrogen fertilizer that Dahlia will need in the future, add slow-release fertilizer while weeding the soil, and pay attention to applying fertilizer according to the amount of product description (organic fertilizer is also available, of course).

4. In order not to damage the root tuber, set up before the Dahlia peanut root-the pillar is in a pit about 15cm deep. Place the bulb flat at the bottom of the pit with the bud close to the pillar.

5. Fill the pit with broken soil. in order to make the bulbs in full contact with the soil, gently flatten the pit with your feet, and then water it thoroughly like a light rain.

6. In July, dahlias planted at the beginning of spring are springing up like bamboo shoots after a spring rain. It's time to set up pillars, if not at the time of planting. In order to cultivate large and beautiful flowers, it is recommended to carry out cutting. Set up a pillar at the foot of each dahlia before the rhizome is overwhelmed by the weight of leaves and flowers. Be careful not to break the bulbs.

7, the pillar had better leave the rhizome 5cm, use plastic or wine coconut leaf fiber rope to tie the rhizome and pillar loosely. Be careful not to pull the roots and pillars too tight.

8. in order to cultivate large flowers, use a sharp small pruning knife to eliminate the leaf axils growing under the leaves, leaving only the buds growing on the rhizome. At the same time, eliminate small side branches.

9. Short dahlias do not need to set up pillars, and clumps of branches and leaves can support flowers. However, in order to prevent bolting and reduce the burden of bulbs, attention should be paid to the timely elimination of withered flowers. Timely elimination of withered flowers can also effectively promote the production of new buds.

10. In October, when the Dahlia season is over, cut off all the root branches off the 10cm with trimmed or sharp scissors. Don't touch the leaves, except for the withered leaves, of course.

11. Don't pull up the dahlias until the plants have withered completely. If it is pulled out too early, it may seriously damage its storage and affect future reproduction.

twelve。 When the plant has withered completely, use a long-handled fork shovel, pull it out carefully, and be careful not to destroy its roots.

13. After drying in the open air for several hours, remove the soil and dead leaves from the bulbs, cut off the excess root branches (keep about 5cm), write down the product name and color, and label it.

14. Store them in a wooden box and put them in a dry and airy place. If you are afraid of erosion, you can store them in a net bag and hang them up. Pay attention to regularly observe their health status.

15. In places where frost and ice are rare, the Dahlia bulb can be left underground. Cut off all withered branches and leaves from the 5cm above the ground. Cover with 20-30cm thick dry leaves or straw.

Key points of potted plant

(1) like wetting and afraid of waterlogging: pour water thoroughly at the right time and pay attention to avoid stagnant water.

(2) like to be fertile and afraid of excessive: planting dahlias should choose fertile and loose soil, in addition to base, but also topdressing. Usually, the leaves are dark green and stretch from the middle to the end of July until flowering.

(3) like sunshine and fear shade: in order to ensure the robust growth of dahlias and produce bright flowers, they should be placed in places where there is plenty of sunshine.

(4) like cool and afraid of heat: the most suitable growth temperature of dahlia is about 20 degrees Celsius. When it is hot, attention should be paid to avoid the damage caused by sunlight exposure, and shade protection measures should be taken.

The above is the introduction of Dahlia. I hope it will be helpful to you.

In addition to basing, we also need to fertilize. Usually, the leaves are dark green and stretch from the middle to the end of July until flowering.

(3) like sunshine and fear shade: in order to ensure the robust growth of dahlias and produce bright flowers, they should be placed in places where there is plenty of sunshine.

(4) like cool and afraid of heat: the most suitable growth temperature of dahlia is about 20 degrees Celsius. When it is hot, attention should be paid to avoid the damage caused by sunlight exposure, and shade protection measures should be taken.

The above is the introduction of Dahlia. I hope it will be helpful to you.