Hibiscus plants boast bright, large flowers that give most every environment a tropical feel. Grown hibiscus plants can be quite expensive to buy. A more cost-effective way to place the striking flowers in your yard is to grow hibiscus from seed. Many home gardeners find that growing the plants from seed is enjoyable, as well as simple. With a little work and a bit of knowledge about the plant, you can grow your own hibiscus plants.
- Skill level:
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Things you need
- Razor blade
- Seed starter mix
- Gallon-sized containers
Create a nick on the back of a seed with a razor blade. Doing so helps the seed retain moisture and will improve germination. You could also use sandpaper or a utility knife. Soak the seeds in water overnight.
Place seed starter mix a few inches deep in trays that have drainage holes in their bottoms. Place a few rows of seeds on top of the soil and then push each down about ¼- to ½-inch below the surface. The seeds are small, and using the tip of a pen or toothpick to insert them into the mix may be helpful.
Sprinkle soil gently over the areas in which you planted the seeds. Gently water the seeds until the soil gets moist. Use a spray bottle to keep the soil hydrated.
Place the seeds in an environment that stays between 26.7 and 29.4 degrees Celsius. Use a heating pad or mat under the tray to keep it warm. Install a thermometer in the room to ensure that your seeds are at the right temperatures. Germination usually occurs between one and four weeks.
Transplant your seedlings into larger containers once they have a few sets of true leaves. True leaves are those that form after the first set occurs. The seedlings should be placed into containers that are at least one gallon in size. Carefully remove the seedlings from their starter trays with a spoon or dull knife. Place them in holes in their new trays that are about twice the size of their roots. Cover the roots with soil, and then apply a 20-20-20 fertiliser to the soil after planting.
Place your hibiscus seedlings outside for a couple of hours a day, a few weeks before you intend to place them permanently outdoors. Doing so will get them used to the new temperatures. Avoid placing the plants outside when the temperature is lower than 50 degrees.
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