How to grow Psidium friedrichsthalianum

Psidium friedrichsthalianum grow and care – tree of the genus Psidium also known as Cas or Cas guava, Psidium friedrichsthalianum perennial evergreen plant, can grow in tropic, mediterranean or subtropical climate and growing in hardiness zone 10+.

Leaves color green in oval shape, flowers color green-white with five petal,

Psidium friedrichsthalianum fruits

Fruit the taste and the smell sour unique, color is yellow, and size of the fruit can be 3-12 cm, sometime the seeds hard and not edible

Psidium friedrichsthalianum for sale – Seeds or Plants to Buy

Buy Now in E-bay

How to grow Psidium friedrichsthalianum – Cas growing and care:

Rich soil, organic matter, humus

How to care:
Add fertilize at least once, when the plant bear fruits add water, put mulch to keep the soil moist, prune once a year and hard prune every 2 years

What is the best way to start growing?
Plant / Seed / Cutting / Air layer

Is it necessary to graft or use vegetative reproduction?
No, but possible and if the fruits not good recommend to graft, possible also to graft Red strawberry guava on the same tree

Difficulties or problems when growing:
Aggressive, invasive

Planting season:
All year in hardiness zone 11b+, spring to autumn in hardiness zone 10b-11a, in colder climate in spring to summer in hardiness zone 9-10a

How to plant:
Dig hole bigger 50% more than the roots ball, add to the hole, organic matter, dead leaves and hummus put back some soil and mix it, after this put the tree cover lightly but strong enough that won’t fall put support for the tree if needed, if the tree is not stable consider to prune, water it twice in the first day and every day for two weeks.

Pests and diseases:
Aphids, mealy bugs, scale insects, borers, white flies, thrips

Pruning season:
End of the summer and end of the winter, better to prune after the fruits

How to prune:
Cut the tree in a way that it will be easy to cover it and easy to pick up, better to pick up the fruits when fully ripen it will be sweeter

Size of the plant:
2-7 m, 6-21 feet

Growth speed in optimal condition:
Medium growing in the right condition can be fast growing plant

Water requirement:
Average amount of water to big amount of water

Light conditions in optimal condition for growing:
Full Sun

Is it possible to grow indoor as houseplant?

Growing is also possible in a planter /flowerpot / containers:
Yes, start with pot that will be 20% more than the root ball, every time that the tree arrive to full capacity need to switch to bigger until arrives to desirable size, it will bear fruits also in 25gallon (94 liter) container not a lot and bigger is better, 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, drainage it’s important and need to make holes and to use peat soil and maybe some lava grit in the bottom or something like that, put a bottom for the container and when water the plant let it fill the bottom but also need to dry in the same day, better when it’s grow in container to grow it as shrub, better to graft the tree or start from air layering will ensure the fruits.

Blooming information

Bloom season:
Spring / Summer (in hardiness zone 12+ can bloom most of the year)

General information about the flower
White flowers

Pollination is done by:

Edible fruits

Fruit harvest season:
Summer to autumn (in hardiness zone 12+ can bloom most of the year)

Fruits pests or diseases:
Fruit fly (a lot of time the eggs of the fruits fly die in the fruits because of the acidity, birds

What can be done with big quantities of Psidium friedrichsthalianum fruits?
Juice, Eat raw, ice-cream

Work requirements on the fruit:
Cover with net or traps for fruit fly

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

Scientific name:

Psidium friedrichsthalianum

Alternative names: Cas guava, Cas tree, Psidium friedrichsthalium, Costa Rican guava

How to grow Psidium friedrichsthalianum

Growing Psidium friedrichsthalianum

Psidium friedrichsthalianum fruit harvest

Psidium friedrichsthalianum


Blooming Seasons
  • Spring flowers
  • Summer flowers
Edible Parts
  • Edible Fruit
Culinary uses
  • Alcoholic beverages
  • Eaten raw
  • Fruit
  • Ice pop & Ice cream plants
  • Juice
Flower colors
  • White flower
  • Mediterranean Climate
  • Subtropics Climate
  • Tropics Climate
Harvest Season
  • Autumn Harvest
  • Summer Harvest
Ornamental parts
  • Ornamental leaves
  • Ornamental plant
Plant growing speed
  • Fast growing plants
Plant life-form
  • Evergreen
  • Perennial plant
  • Tree
Plant Uses
  • Bonsai
  • Edible plants
  • Ornamental plants
Planting Season
  • Autumn Planting
  • Spring Planting
  • Summer planting
  • Winter planting
Plants sun exposure
  • Full sun Plants
Watering plants
  • Regularly water
Hardiness zone
  • Hardiness zone 10
  • Hardiness zone 11
  • Hardiness zone 12
  • Hardiness zone 13