Petunia is favored by the majority of gardening enthusiasts because of its rich flower color, long flowering period and easy planting. However, in practice, many flower friends report that the germination rate of petunia after sowing is not ideal, which undoubtedly brings a little trouble to friends who are looking forward to blooming flowers.
Seed freshness and vigor: The freshness and vigor of seeds directly affect the germination rate, and when purchasing, you should choose fresh seeds harvested in the current year provided by reputable merchants to avoid stale and lackluster seeds.
Seed pretreatment: Before sowing, petunia seeds can be soaked in warm water for 12-24 hours to activate the enzyme activity inside the seeds and improve the germination rate. Then wrap the seeds in a clean paper towel, place them in a warm and moist place to germinate, and sow them after the seeds are white.
The temperature is right: The suitable temperature for petunia seed germination is 20-25, too high or too low temperature will affect seed germination. Especially in low temperature environments, seed germination is hindered and germination rate is reduced.
The humidity is suitable: The moisture of the sowing soil should be kept in a moist but not waterlogged state, too wet will cause the seeds to rot, too dry will hinder the seeds from absorbing water and expanding, which is not conducive to germination. After sowing, it can be covered with a film to moisturize, but it should be opened regularly to breathe.
Soil texture: Choose a sowing medium mixed with perlite, vermiculite, peat, etc., which is good for seed germination.
Seeding containers: Choose a container of appropriate size with a drainage hole at the bottom to prevent seed rot caused by stagnant water.
Lighting management: Petunia seeds do not need strong light in the germination stage, they can be placed in a scattered light place after sowing, and gradually increase the light after the seedlings are unearthed.
Ventilation: Maintain good ventilation of the sowing environment to avoid the breeding of germs due to excessive humidity, which will affect seed germination and seedling growth.
Water regularly: Keep the soil moist after sowing, but avoid stagnant water, keep the soil slightly moist, which is conducive to the smooth germination of seeds.
Seedling careAfter the seeds germinate into seedlings, carry out seedling thinning in time to avoid overcrowding of seedlings and affect their growth, and at the same time strengthen light and appropriate fertilization to promote the healthy growth of seedlings.
The problem of low germination rate after sowing is actually the result of multiple factors. Through careful selection of seeds, precise regulation of the sowing environment, scientific selection of soil and containers, reasonable arrangement of light and ventilation, and careful care after sowing, we can effectively improve the germination rate of petunia seeds, so that each seed can break through the soil under careful care and grow into a flowery petunia. As long as you grasp these key links, every flower friend can reap full of surprises and fun in the petunia sowing journey.