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Plant details
Meet this plant.
Tangy Tropical Delight from Costa Rica
Common Names: Cas Guava, Costa Rican Guava, Sour Guava, Cas
Family: Myrtaceae
Origin: Central America, particularly Costa Rica
Cas Guava (Psidium friedrichsthalianum), also known as Costa Rican Guava, is a small tropical fruit tree known for its unique and intensely tangy fruit. Native to Central America, particularly Costa Rica, Cas Guava is a popular fruit in tropical regions, often used to make refreshing beverages, juices, and jams due to its sour, citrusy flavor. This small, hardy tree is highly valued for its ability to grow in diverse conditions and its heavy fruit production. The fruits are smaller than common guavas and are highly aromatic, making them a standout in both home gardens and orchards.
Distinctive Features, Uses, and Nutritional Value
Fruits: Cas Guava produces small, round, greenish-yellow fruits with a strong, tangy flavor. The flesh is typically white or light yellow and filled with numerous small seeds. The fruits are rich in vitamin C and have a sour, citrusy flavor that makes them ideal for beverages, smoothies, jams, and sauces.
Foliage: The tree has glossy, dark green leaves that are aromatic when crushed, giving off a pleasant guava scent. The dense foliage makes it an attractive addition to tropical gardens.
Growth Habit: Cas Guava is a small, bushy tree that can grow up to 10-15 feet tall. It is drought-tolerant once established and can produce fruit prolifically, often within 2-3 years of planting.
Culinary and Medicinal Uses
Cas Guava is most commonly used to make refreshing drinks known as “Cas fresco” in Costa Rica, where the fruit is blended with water and sugar to create a tart, tangy juice. The fruit is also used to make jams, jellies, and sauces. Due to its sour taste, it is rarely eaten fresh on its own.
Medicinally, Cas Guava is rich in vitamin C and antioxidants, supporting immune health and protecting against oxidative stress. In traditional medicine, it is used to treat digestive issues, such as diarrhea and upset stomachs.
Plan before planting
Fruit tree facts at a glance.
Use hardiness as a first filter, then confirm chill hours, pollination, summer conditions, and local restrictions.
- USDA hardiness
- Zones 9b–11
- Nursery container
- Medium Coconut Coir Pot, Large Coconut Coir Pot
- Mature size
- Growth Habit: Cas Guava is a small, bushy tree that can grow up to 10-15 feet tall.
- Winter care
- Protect young plants and container roots during freezes.
- Delivery eligibility
- Final delivery eligibility is confirmed at checkout; state agricultural restrictions may apply.
USDA zones describe average annual extreme minimum temperatures, not summer heat, humidity, soil, sunlight, chill accumulation, or every microclimate.
A better live-plant order
Know what happens next.
Choose the right option
Confirm your USDA zone, then select the available plant size.
Packed for the trip
Your plant is secured with transit-ready packaging, and tracking is sent when the order ships.
Unpack and acclimate
Open the package promptly, inspect the plant, and give it time to adjust before repotting.
Your point of contact
Inty Tursun
Manager
Questions about plant options, delivery, tracking, or an order? Inty is here to help before and after your purchase.
Will my plant look exactly like the photo?
Live plants naturally vary in height, branching, leaf count, color, and shape. Photos show the variety and typical presentation.
Can items arrive separately?
Yes. Plants can have different preparation times and packaging needs, so one order may receive more than one tracking number.
What should I do when it arrives?
Unpack promptly, inspect the plant, water only when needed, and let it acclimate before making major care changes.


