However, castor bean plants are highly toxic to people and pets.
Avoid putting the plant below anytowering trees, which can impact the amount of light it can get.
Soil
Soil that is rich and moist will produce the best results for your castor bean plant.
The Spruce / Evgeniya Vlasova
The mixture should be nutrient-dense and hold moisture well, but should not be boggy or easily waterlogged.
Generally, the plant likes around 1 inch of water per week, either from rainfall or manual watering.
If planted in the rightUSDA hardiness zones, your plant should be more than happy.
The Spruce / Evgeniya Vlasova
That said, spider mites have been known to attack stressed castor bean plants in times of drought.
you might prevent this by keeping castor bean plants well-watered, especially during drought-like conditions.
Bloom Months
Castor bean plants bloom in the summer and fall, from August to November.
The Spruce / Evgeniya Vlasova
What Do Castor Bean Flowers Look and Smell Like?
The flowers on castor bean plants are small and greenish-yellow, and they have a light, sweet scent.
They pale in comparison to the bold red seed pods that follow.
The Spruce / Evgeniya Vlasova
How to Encourage More Blooms
Castor bean plants should flower easily.
double-check your plant is getting enough sunlight, water, and fertilizer.
Castor bean plants grow so vigorously and become so large that growing them in pots is inadvisable.
Traditionally, castor bean plants and castor oil have been used to repel mosquitos.
No, castor bean plants are toxic to animals, and most animals will know to stay away.
North Carolina State Extension.
