Sakura cherry blossom is a flower of many trees of genus Prunus. The most well-known species is the Japanese cherry, Prunus serrulata, which is commonly called sakura.
Plant Type: Small deciduous flowering tree.
Native Range: Japan, China, Korea
Bloom Time: April
Bloom Color: White to pink
Light Preferences: Full Sun to Part Shade
Water: Moderate watering care, preferably once a week
A prior treatment with Scarification (weakening the hard outer shell) and Stratification (mimicking winter to encourage germination) is recommended for most Sakura (Cherry Blossom) seeds to achieve high germination rate.
- Rinse the Sakura (Cherry Bonsai Blossom) seeds gently.
- Use a gardening gloves and soak the Sakura (Cherry Blossom) seeds into hydrogen peroxide solution for about 10 minutes.* This step is optional but it helps prevent possible molding drastically.
- Pick up the seeds with a pair of tweezers and put them into a moist napkin paper, then put them into a ziplock bag. Finish by labeling them and then refrigerate them. (Do not put into a freezer. Let them stay in the lower part of a refrigerator - the part where you usually store vegetables or fruit will be fine.)
- Sprouting should start in 2-8 weeks, depending on the variety. Some varieties take up to months to start germination. Check for germination once a week and if necessary moisturize the napkin to maintain humidity.
Steps for direct germination or transferring of seedlings after stratification:
- Potting mix - a compost designed for Roses should fits well. Preferably, add about 30% of coarse sand (or any sandy soil) to achieve better drainage. The compost should be slightly acidic and a bit sandy. To minimize possible molding problem, make sure the compost you bought is sterile (most commercial compost are). Preferably, buy a new pack instead of using an already opened one.
- Seed Tray.
- Hydrogen peroxide solution(or common bleach) *optional but recommended
- Gardening glove
- A pair of Tweezers
- Copper based fungicide
Rinse the Sakura (Cherry Blossom) seeds gently in a sieve.
Use a gardening glove and soak the Sakura (Cherry Blossom) seeds into Hydrogen peroxide solution for about 10 minutes.* This step is optional but it helps prevent possible molding drastically.
- Pick up the seeds with a pair of Tweezers. Sow your seeds on to the top layers of your growing medium in your pot or in seed trays. Cover the seeds with a thin layer of soil - not more than 2 cm.
*If you have already treat the seeds with stratification, starts here: transfer the seedlings with a pair of tweezers and plant them into the soil.
- Light enhance germination. Try putting the seed tray or pot under sunlight as much as possible.
- Maintain a medium level of humidity for the germination by regular watering.
- Germination of this type of seed can vary widely and naturally occurs in a few weeks- several months.
- Once germinate, or after transferring seedlings from stratification, use a Copper based fungicide to prevent molding problems. Follow instruction on the fungicide label for amount and frequency of application.
- Do not plant the seeds or seedlings under extreme temperatures. Temperature below 15°C (59°F) or above 30°C (86°F) normally guarantee a poor result.
- Stratification is not necessary if the seeds are very fresh (e.g. just harvested in season). Germination rate decreases longer the seeds is stored. Thus, if you are unsure how long your seeds has been stored, treatment of stratification is highly recommended.
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