Ranunculus hyacinth can be planted in autumn. Generally, September is chosen, and August can be chosen for areas with low temperature in the north.
Flower Ranunculus should not be higher than 20 ℃ under the climate of budding, so generally can choose late autumn season for sowing.
The best germination temperature of its seed is 5 ℃ ~ 15 ℃. Pay attention to the adjustment of temperature when sowing, and give the seed a good germination temperature.
The germination rate of the seed of Ranunculus hybridus was much higher than that of the seed without germination. So it's better to speed up the germination of seeds before sowing to improve the germination ability of seeds.
In particular, germination treatment is to dry the seeds, evaporate the water, and then put them in a closed low temperature environment for a period of time. So called low temperature is to point to - 1 ℃ ~ 5 ℃, cannot be too low, otherwise can frostbite seed..
Ranunculus japonicus likes relatively humid growing environment, which requires that the cultivated soil has certain water holding capacity, and can keep dry for a period of time after watering.
The growth of seeds after germination needs nutrients, which requires that the cultivated soil has a certain degree of fertility, to ensure the growth of seedlings.
Seed germination needs a certain amount of air support, which requires that the planting soil used should not be too dense, there should be a certain gap enough for air circulation.
Choose a flowerpot with moderate volume, and sprinkle a layer of small stones on the bottom of the flowerpot to increase the moisture retention ability of the cultivated soil.
Pour the prepared planting soil into the flowerpot and level it with a shovel.
And then after the germination treatment of the seeds to the soil surface, pay attention to spread evenly, seed spacing to keep moderate
Cover the seeds with a thin layer of cultivated soil. At this time, we should pay attention to the thickness of the culture soil can not be too thick, otherwise, it will increase the difficulty of breaking the soil and affect the normal germination of seeds.
Finally, we need to pour some water into the flowerpot to ensure the moisture of the culture soil and give the seeds a suitable budding environment.