Bottle Brush Plant Not Flowering. Do not complete a rejuvenation pruning every year. As you might suspect callistemon (bottlebrush) are not hardy outdoors in all parts of the uk, although some are definitely proving hardier than others.
Make sure you do not plant any other plant within 5 feet of the bottle brush. The pollen of the flower forms on the tip of a long coloured stalk called a filament. Mature plants require very little maintenance.
Well loved for its bright colors and evergreen foliage, the bottle brush plant likes warm climates, moist soil and lots of sun.
They can be propagated through cuttings, as well. They're also versatile enough to work as accents or even as small flowering trees. Click on links below to jump to that question. Mature plants require very little maintenance.