Dieffenbachia – Dumb Cane 15°C (60°F). Tropical America.
A striking foliage plant with large elongated ovalwhich are bright green with blotches and spots of yellow. The sap is and if chewed will cause pain and numbness of the tongue (hence the name). It should be kept away from children or pets. It is not in living room conditions as it demands constant warmth and .
- Growing season 15-24 °C (60-75 °F)
- Minimum winter 15 °C (60 °F)
Soil: A soil-less.
Where to: In the lightest possible, protected from sun.
Watering requirements: Tepid water. Ensure that the soil stays moist. It is a highplant. Mist-spray daily in hot weather, twice weekly at other times, using tepid water.
General care: Littlenecessary; very weak liquid once or twice in the growing season. Maintain warmth and humidity. As it ages, the will tend to drop. When this occurs, cut it back to one-third of its original height. Tend carefully and new shoots will form.
Rest: No marked resting period – no special routine.
When it looks sick:
Leaves droop and may drop : You are probably using too much water which is too cold.
Leaves get dry brown borders : Mist-spray regularly and increase the humidity.
Plant loses colour : It needs better light, though not full sun.
Leaves droop : Check that soil is moist. If not, water to correct condition.
There are many exciting plants to be found in this genus of outstanding foliage plants, but only very few are suited to other than warmconditions. Warm, moist and shaded conditions suit them best, protected from draughts. Use a rich loam-based compost.
By far the best one for indoor use is D. Exotica, which has a compact habit and superbly variegated cream, white and green leaves. The variety ‘Tropic Snow’ is an even bolder plant attaining a height of some l·5 m (5 ft) with larger leaves and darker green colouring a fine plant if space is not a problem.
Another species likely to be encountered is D. seguina. As plants age, typical arum inflorescences are produced from the topmostaxils, but as these do nothing for the plant they should be removed.
Dieffenbachias can be propagated by removing young plants from around the base of the plants can be put into 5 cm (2 in) sections and partly buried in moist peat in a propagating case that is kept at around 20°C (70°F).of the parent, or the main of mature