Planting Time and Methods for Dwarf Sunflowers
Here are some experiences regarding the planting time and methods for dwarf sunflowers, sunflower cultivation techniques, and fertilization methods in the aspect of green plant maintenance. Let's dive into the introduction by the editor.
Dwarf sunflowers, a新兴的地栽观赏花卉品种 (newly emerging ground ornamental flower variety), are highly favored for their ornamental value. Dwarf sunflowers are annual herbs, with a germination temperature of 15-22°C, germination period of 7-14 days, and a suitable growth temperature of 15-30°C. From sowing to flowering takes about 70 days. Dwarf sunflowers thrive in sunny and warm environments, are intolerant of shade, and do not tolerate cold.
Meaning of Dwarf Sunflowers: Silent love, unspoken love.
Dwarf Sunflower Planting Methods
1. Sowing
Dwarf sunflower seeds are sown using the dot-hole method, where you make several holes with your finger, place the seeds in them, not too many, one or two will do, then cover with soil. The germination temperature is 15-22°C, with a germination period of 7-14 days. During the germination period, water every day, but not too much, just enough to moisten the soil.
2. Sunlight
Dwarf sunflowers enjoy sunlight but avoid excessive exposure, as it may cause water deficiency. As they grow, their water needs increase, so don't let the soil in the pot dry out and crack.
3. Watering
Dwarf sunflowers require a significant amount of water, especially as they enter late spring and early summer when transpiration increases rapidly. Once they lose water, the leaves and petals will visibly wilt. Therefore, timely watering is essential. During the dog days of summer, increase the frequency of watering to keep the soil consistently moist. Each watering should be thorough but avoid waterlogging.
4. Seed Saving
Dwarf sunflowers are different from other flowers; they produce seeds when they wither, which are located in their flower disks. These seeds can be buried in the soil the following year to continue planting dwarf sunflowers.
5. Disease and Pest Control
Common diseases and pests include powdery mildew and black spot disease. Powdery mildew causes white circular powdery spots on leaves, which then spread and connect to form a layer, followed by brown dots appearing on the powdery layer, stopping plant growth. Black spot disease causes various-sized deep brown or light yellow spots on leaves, which then develop into brown spots, forming large patches that make the leaves turn black and die. During outbreaks, remove affected plants and spray with a 75% wettable powder fungicide solution (500 times dilution) or a 70% wettable powder methylthiophanate solution (800 times dilution). The main pests are blind bugs and red spiders, which can be controlled by spraying with a 40% omethoate emulsion (800 times dilution) or a 73% propargite emulsion (1500 times dilution).
The above information (in parentheses) introduces the planting time and methods for dwarf sunflowers, as well as specific details about sunflower cultivation techniques and fertilization methods, hoping that everyone will enjoy it!