Scoop a good-quality humus-rich potting mix into 4.5 litre pots until each is full to about 2.5 cm from the top. Scientific Name: Jacaranda mimosifolia; Common Name (s): Jacaranda, Blue jacaranda, Green ebony tree, Black poui, Fern tree, Brazilian rosewood, Blue trumpet tree. I've looked a lot through the internet and there is a lot to find but not when it comes to young jacarandas. Jacaranda can be propagated by either by cuttings or seeds. The first time someone sees a jacaranda tree (Jacaranda mimosifolia), they may think they’ve spied something out of a fairy tale. Read on to learn how to grow a jacaranda tree if you have the right environment. Anyway, almost 2 years ago I was gifted some "bonsai jacaranda" seeds for Christmas. Take semi-ripe cuttings of young growths in early summer and insert the cuttings into pots of cuttings compost and into a propagator with bottom heat of 20–24°C (68–75°F). I have some Jacaranda mimosifolia that are about 6 months and I'm wondering if I'm doing it right. I knew that bonsai are particularly hard to maintain, and that jacarandas grow to ridiculously big and beautiful sizes. Jacarandas can be raised easily from seed each year for use as foliage plants. Quick Growing and Care Guide. How to grow Bonsai from Seeds Growing a Bonsai tree from seed is one of the most rewarding processes. They are about 10-15 cm so they are still small and quite fragile I think. Cuttings. Place the jacaranda seeds into the water and let them soak for 24 hours, but no longer. The jacaranda—Jacaranda mimosifolia—is a large tree which is native to Brazil and which commonly grows throughout the southern United States, Australia, and in many other warm, humid climates.Jacarandas are perhaps best known for producing a beautiful display of bright purple or blue flowers in the spring. This lovely tree often spans the width of a front yard, and is covered in beautiful lavender purple blooms every spring. Using large pots will allow the jacaranda trees time to grow to a decent size. Although you may need to wait a few weeks or months for the seeds to germinate, growing a Bonsai tree from seed could be one of the most rewarding processes you have ever experienced in your life. Seeds. They then produce woody seed pods with winged seeds. Fill a small bowl, saucer or saucepan with water. Growing Zone (USA / UK Hardiness): 9(b)-11 / Does not do well in the UK, grow as a conservatory or greenhouse plant only. Plant Details.