Cassia javanica plant grow and care – tree legume the genus Cassia also known as Rainbow shower tree or Cassia nodosa, Cassia javanica perennial deciduous plant and used as ornamental plant that can be drought tolerant, can grow in mediterranean, subtropical or tropic climate and growing in hardiness zone 10b+ and possible with the right care in hardiness zone 10a, the hardiness zone and care effect on the growth rate.

Leaves color green in elliptic shape the leaves grow in pinnate structure.

Cassia javanica flower and pods

Flower color pink and grow in a weeping group can be dozen flower in group, the flowers fragrant attracted pollinators.

Pod (fruits) color brown, the size of pod 30-70 cm.

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How to grow Cassia javanica growing and care:

Rich soil, well-drained soil, mulch

How to care:
Add mulch especially in the summer, put fertilizer and prune once a year

What is the best way to start growing?
Plant / Seed (Sowing explanation bellow) / Vegetative Reproduction care propagation cutting better to start in the early spring or with temperature of ~26C (79F), requirements: moist soil, high humidity, peat soil, hormone for root growth, highly recommend to use green house (or small plastic box with holes).

Is it necessary to graft or use vegetative reproduction?
No, it’s not hard to start by seeds and it’s harder to start by cutting

Difficulties or problems when growing:

Planting season:
Spring to summer in hardiness zone 10b, spring to autumn in hardiness zone 11, all year hardiness zone 12+.

How to plant:
Dig a hole as deep as the current root ball plus extra 50-100%, put in the hole organic matter, humus and dried leaves and mix it with some soil, put the tree and loos little bit the root ball above the hole, plant the tree and after this put mulch and dead leaves on the soil to keep moist on soil, put water every day for the next two weeks (better in the morning).

Pests and diseases:

Pruning season:
Spring / Summer

How to prune:
Open the growth of the branches, need that all the branches in the tree will get sun in order to get full bloom

Size of the plant?
6-12 m, 20-40 feet

Growth rate speed in optimal condition:
Medium growing, growth rate can be changed by the amount of water, hardiness zone and fertilizer

Water requirement:
Small amount of water / Average amount of water, although it’s drought tolerant plant prefer more water

Light conditions in optimal condition for growing:
Full Sun, possible less than full sun but will bloom less

Is it possible to grow indoor as houseplant?

Growing is also possible in a planter, flowerpot or containers:
Yes, in containers need to keep the plants small as dwarf or to grow as bonsai, start with pot that will be 50-100% more than the root ball, every time that the tree arrive to full capacity need to switch to bigger until arrives to desirable size minimum size for the tree it’s 30L (7 gallons) better 100L (20 gallons), better to use this method because the soil lose the viability over time and it’s efficient of care for the tree, when the plant big need to switch part of the soil, cut the tree and the roots, switch in the dormant season, when grow in container need to put more fertilizer and add organic matter, soil to use peat soil with perlite or potting mix and maybe some lava grit in the bottom or something like that to make drainage, put a bottom for the container and when water the plant let it fill the bottom and better dry in the same day.

Blooming information

Bloom season:
Spring / Summer

General information about the flower
Pink flowers grow in a weeping group can be dozen flower in group, the flowers fragrant attracted pollinators

Edible Fruits

Fruit harvest season:
Summer / Autumn

Fruits pests or diseases:

What can be done with big quantities of Cassia javanica fruits?

Work requirements on the fruit:
Pick up from the tree and break the pods and collect the fruit the connected to the pod

How long does it take to bear fruit?
2-4 years

How to grow Cassia javanica from seeds

Sowing requirement:
Moist soil, better when the temperature 26-30C (79-86F)

Saving seeds and care until sowing:
Dry and dark location

Sowing season:
Spring / Summer

Planting spacing:
Better in different pots, direct in the place 3*3m (10*10 feet)

Depth of Sowing:
2-4cm (1-1.8 inches)

Conditions for seeds germinate:
Moist soil, high humidity in sunny location

Watering requires for Seeds:
Average amount of water

Germination time:
3-7 weeks

Condition of seedling:
Full sun with regular watering

Scientific name:

Cassia javanica

Alternative names: Cassia nodosa, Java cassia, Pink shower tree, Apple blossom tree, Rainbow shower tree

Cassia javanica plant care

Growing Cassia javanica

Cassia javanica


Blooming Seasons
  • Spring flowers
  • Summer flowers
Flower colors
  • Pink flower
  • Mediterranean Climate
  • Subtropics Climate
  • Temperate Climate
Ornamental parts
  • Ornamental flower
  • Ornamental fruit
  • Ornamental leaves
  • Ornamental plant
Plant growing speed
  • Average growing plants
Plant life-form
  • Deciduous
  • Legumes
  • Perennial plant
  • Tree
Plant Uses
  • Attract pollinators
  • Bonsai
  • Drought tolerant plants
  • Fragrance
  • Ornamental plants
Planting Season
  • Autumn Planting
  • Spring Planting
Plants sun exposure
  • Full sun Plants
Watering plants
  • Regularly water
  • Small amounts of water
Hardiness zone
  • Hardiness zone 10
  • Hardiness zone 11
  • Hardiness zone 12
  • Hardiness zone 13