How to propagate Clerodendrum thomsoniae? A detailed guide to common propagation methods
I. Seed propagation
First choose a suitable sowing time, with spring being the best, then soak the seeds in water for 12 hours, next take them out and sow them by the dibbling method, and ensure a certain spacing between plants and rows, with 3*5 cm being the best.
Keep the temperature between 20-25°C, and after about 10 days it will grow seedlings. When the leaves reach 3-4, you can carry out the first transplant. When the seedlings grow to 10 cm, they can be potted, with 1 to 3 plants per pot, and then the following year they will bloom.
II. Cutting propagation
1. Stem cuttings: seed propagation is not easy to survive and produces few flowers, so many people choose the cutting method to propagate. If using stem cuttings, in spring or autumn, find a healthy stem, cut it into sections according to the standard of 2 to 3 nodes, and keep the topmost leaves. Insert it into sandy soil, keep it in a shaded place for care, and keep it moist. After about 20 days it will root, and after one month it can be potted.
2. Leaf-bud cuttings: first use the lateral buds on the stem as cuttings, cut them off, and when cutting you can take 1 short section of stem with them, then insert them into the substrate. When the small buds emerge from the substrate, keep them in a shaded place for 20 to 25 days, and then they will grow roots. When the leaf buds grow out, they can be potted.
3. Root cuttings: this can be done when repotting. Cut the stems exposed above the soil surface into 8 to 10 cm sections as cuttings, then prepare the substrate, with a mix of perlite, peat and the like being best, and then the cuttings can be inserted.