Garden Blog - Top Tropicals

Date: 12 Feb 2025

How to grow a Guava Tree: Practical Guide to Growing Guava

Guava (Psidium sp.)

🍉 How to grow a Guava Tree: Practical Guide to Growing Guava

  • 🍑 Guava Trees (Psidium sp.) are beloved for their flavorful fruit and easy-growing nature. These fast-growing trees are reliable producers and can thrive in a variety of climates, making them a favorite among home gardeners. Guavas are compact and can be grown in containers, making them suitable for small spaces and urban gardens.
  • 🍑 Light and Soil


    Guava trees thrive in full sun, requiring at least 6-8 hours of direct sunlight daily to produce the best fruit. They prefer well-draining soils rich in organic matter but are adaptable to a range of soil types, including sandy or loamy soils. Slightly acidic to neutral soil is ideal. While guavas tolerate poor soils, enriching the soil with compost or manure will improve growth and yield.
  • 🍑 Pruning tips


    Pruning is essential for maintaining the shape, size, and productivity of guava trees.

· Frequency: Prune guavas annually, ideally after the fruiting season, to encourage new growth and improve airflow.
  • · Remove dead, diseased, or crossing branches to maintain tree health.
  • · Shape the tree to allow sunlight to penetrate the canopy, which enhances fruit production.
  • · For container-grown guavas, keep the tree compact by trimming back vigorous shoots regularly.


🍑 Guava in containers


Guavas are well-suited to container growing. Compact varieties like the "Nana" guava are ideal for pots. Use a large container (at least 15-20 gallons) with good drainage. Fill it with a high-quality potting mix enriched with organic matter. Place the container in a sunny location and water consistently. Regular pruning helps maintain a manageable size and promotes fruiting in container-grown guavas.
  • 🍑 Watering


· Guava trees require consistent watering, especially during dry periods and the fruiting season. While they can tolerate short periods of flooding, ensure the soil is not waterlogged. Water deeply once or twice a week, depending on your climate.
  • · Fertilize guavas 3-4 times a year during the growing season with a balanced fertilizer rich in potassium and phosphorus to promote flowering and fruiting. Adding organic matter like compost or manure annually boosts soil fertility and improves yields.


🍑 Harvesting

  • · Guava trees are quick to fruit, often producing their first harvest within a year of planting. For container-grown trees, fruiting can start in even smaller pots, such as 1-gallon containers.
  • · Signs of ripe guava fruit include:
  • - A change in color from green to yellow (depending on the variety).
    - A sweet, fruity aroma.
    - Slight softness when gently pressed.
  • · Harvest ripe guavas by hand or with pruning shears. Consume fresh or use them to make juices, jams, or desserts.


🍑 Health Benefits of Guava

  • · Guava is a nutrient powerhouse, offering numerous health benefits:
  • · Vitamin C: Boosts the immune system and helps protect against colds and infections.
  • · Potassium: Supports healthy blood pressure levels.
  • · Antioxidants: Contribute to glowing skin and may reduce the risk of cancer.
  • · Fiber: Aids digestion and helps regulate blood sugar levels.


🍑 Popular Varieties of Guava

  • · Tropical Guava (Psidium guajava): Sweet and aromatic, suitable for warmer climates.
  • · Cattley Guava (Psidium littorale): Cold-hardy with a slightly tart flavor.
  • · Cas Guava (Psidium friedrichsthalianum): Known for its sour taste, perfect for juices like Costa Rica’s traditional "Agua de Cas." Cold hardy, disease resistant and vigorous, productive variety.
  • · Pineapple Guava (Feijoa sellowiana): Fruity and floral, thriving in cooler climates.


🍑 Additional Tips

  • · Guava trees are relatively pest-resistant but may require monitoring in humid climates for mealybugs. Use neem oil if needed.
  • · Planting multiple guava varieties ensures a continuous supply of fruit.
  • · With their fast growth, compact size, and delicious fruit, guava trees are a fantastic addition to tropical garden, greenhouse or patio.


📚 More from previous posts about #Guava

🛒 Shop Guava Trees

#Food_Forest #Guava

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Date: 19 Feb 2019

Australia Planting 1 Billion Trees To Fight Climate Change

TopTropicals.com

Australia plans to plant 1 billion new trees to fight climate change, by the year 2050. That is a lot of trees and is the first real effort the country has made toward combating climate change. The only real problem is finding enough space to plant that many trees...
A billion trees is a billion trees, and even with a team of 30,000 people planting a tree per day for the next 31 years, the final tally would still only be 339,450,000 trees. Australia will need a tree army to get that many trees planted by 2050... Read the whole story...

How about planting just one tree today and save the World one step at a time?

On the photo: Callistemon, Australian native tree.

Date: 29 Jan 2026

How to make Sapodilla fruit profusely?

Sapodilla - Manilkara or Achras zapota, the Brown Sugar Fruit

🍊 How to make Sapodilla fruit profusely?



Sapodilla - Manilkara or Achras zapota), the Brown Sugar Fruit is a warm-climate evergreen fruit tree that can produce a lot of fruit once conditions are right. So why do so many sapodilla trees grow beautifully, flower heavily, and still refuse to set fruit?

Sapodilla Fruit Production - What Really Matters

1. 🌳 Choose the Right Tree
Grafted or air-layered trees fruit much sooner - typically in 1-2 years - and more reliably than seedlings, which may take 6–8+ years.
Some varieties are more profuse producers than others. For example, Silas Woods is virtually everbearing, Hasya is commercial prolific producer, Oxkutzcab (or Ox) -is also heavily productive (learn more about varieties).

2. ☀️ Environment: Heat, Sun & Water Balance

Temperature and Humidity
Excessive heat above 90F and low humidity can cause flowers to dry up and fall before setting fruit.
Solution: Provide filtered light or shade during the hottest part of the day to reduce heat stress on blossoms.

Water
Sapodillas are drought tolerant, but consistent moisture during flowering and fruit set improves fruit retention.
Avoid waterlogged conditions - soggy soil can stress roots and reduce yield.

Sun Exposure
Full sun is best for growth and flowering - but for hot climates, protection during peak afternoon heat helps reduce flower drop.
Young trees can also suffer sunburn.

3. Fertilization: Feed for Fruit, Not Just Foliage
Good nutrition is critical for flowers to turn into fruit. Apply a routine feed through the growing/flowering season - contolled-release (Green Magic) or liquid (Sunshine C-Cibus) both work.
Balanced fertilizer with trace elements like Boron (B), Molybdenum (Mo), Iron (Fe), and Copper (Cu) is essential for fruit set and development. Boron & Molybdenum deficiency as a frequent cause of flower/fruit drop in container-grown trees (nutrients get depleted quickly in pots).
Micro-nutrient sprays 2-3 times per year help improve fruit retention and quality. Some growers use sugar boosters (Sunshine Honey) or micronutrient blends that include Mo & B to help fruit set (Sunshine Superfood).

4. 🐝 Pollination - Often Overlooked
Sapodilla flowers are small and often require pollinators for best fruit set.
In some regions, small insects like thrips are key pollinators.
In places with low insect activity, hand pollination dramatically increases fruit set - brushing pollen from one flower to another with a small paintbrush during peak bloom times can help.
Placing fruit scraps (apple peels/banana peels) under the tree to attract beetles is an inexpensive way to boost insect activity.

5. ✂️ Pruning and Tree Structure
Moderate pruning can help open the canopy for better light penetration and air circulation, which supports flowering and reduces stress. Training young trees promotes a strong branch structure that can carry more fruit later. Sapodilla flowers on young growth (tips of the branches).

6. Pot vs Ground: Size Matters
If your sapodilla is in a container, root bound trees struggle with fruit set because roots run out of space and nutrients - stepping up to a larger container or planting in the ground can help.
Root-bound trees often bloom but fail to develop fruit.

7.

📅 Patience & Timing


Even healthy trees can take years to start fruiting well.
Trees often flower repeatedly but only set fruit when environmental conditions and pollination align - especially important for young or newly planted trees.

📌 Summary Checklist for Better Sapodilla Fruiting

  • ✔️ Choose a grafted variety (faster, more reliable fruit).
  • ✔️ Manage heat & humidity - shade during hot hours.
  • ✔️ Water consistently but avoid waterlogging.
  • ✔️ Fertilize balanced NPK + micronutrients (include B & Mo).
  • ✔️ Encourage pollination


🛒 Grow your own Sugar Fruit

📚 Learn more:


#Food_Forest

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Date: 10 Feb 2026

Cold-hardy avocado survival groups - what the numbers really mean

Different varieties of Avocado fruit on a table

Different varieties of Avocado fruit on a table

Cold-hardy avocado survival groups - what the numbers really mean



Avocado cold hardiness is often misunderstood. Temperature numbers do not mean a tree stays untouched - they describe survival, not appearance. Leaf burn, twig dieback, and temporary setbacks are normal even on hardy varieties. The difference is whether the tree recovers.
Below are cold-hardy avocado varieties grouped by minimum reported survival temperatures, along with what growers typically observe after a freeze.

🌡 Hardy to 15F:


Brazos Belle (Wilma), Fantastic, Joey, Lila (Opal), Day.
Best freeze survivors. Minor leaf burn possible, but trees usually recover quickly with little structural damage. These are among the most cold-tolerant avocado varieties when fully established and exposed to short-duration freezes.
What to expect: Trees in this group often survive temperatures near 15F with little to moderate leaf damage. Some tip dieback is possible, but major limb loss is uncommon. Recovery is usually strong once warm weather returns, especially in dry winter conditions.
  • 🌡 Hardy to 20F:
  • Bacon, Brogdon (Brogden), Fuerte (Dwarf), Mexicola, Miguel, Ulala (Super Hass), and Waldin.
    Reliable survivors in cold-prone areas. Expect leaf damage and some setback, but established trees typically rebound.
    These varieties perform well in marginal climates and are commonly grown where freezes are expected but not extreme.
    What to expect:
    Leaf burn is common at or below 20F, and young shoots may be damaged. Trees typically survive, but may need a full growing season to regain canopy density. Established trees usually rebound well with good drainage and protection from wind.
  • 🌡 Hardy to 25F:
  • Black Prince, Choquette, Hall, Hardee Red, Lula, Marcus Pumpkin, Mexicola Grande, Nishikawa, Oro Negro, Poncho (Pancho), Tonnage, Winter Mexican, Wurtz (Dwarf) and Yamagata.
    Moderate cold tolerance. Leaf drop and branch dieback are common after freezes, though trees usually survive.
    This group includes moderately cold-tolerant avocados that handle light freezes but are more easily damaged during prolonged cold.
    What to expect:
    Expect noticeable leaf drop and some branch dieback when temperatures fall near 25F. Trees usually survive but may look rough for weeks or months. Proper placement and drainage greatly influence recovery speed.
  • 🌡 Hardy to 30F:
Bernecker, Catalina, and Florida Hass (Haas).
Frost-tolerant only. Damage occurs quickly, and repeated freezes can cause serious stress without protection.
Actual results depend on tree age, freeze duration, wind, moisture, and microclimate. Lower numbers do not mean damage-free - they mean the tree lived to grow again.
These avocados are best suited to areas with only occasional frost and minimal freeze exposure.
What to expect:
Leaf damage occurs quickly near 30F, and unprotected trees may suffer significant canopy loss. Survival is possible during brief cold events, but repeated freezes can cause lasting damage. These varieties benefit most from proactive protection.

❗️ Important reminder


All temperature figures are approximate and experience-based, not guarantees. Survival depends on tree age, duration of cold, wind, moisture, and microclimate. Cold tolerance improves significantly as trees mature, while young trees remain vulnerable across all groups.
Understanding the difference between survival and damage is the key to choosing the right avocado for colder climates.

🛒 Explore cold hardy Avocado varieties

📖 Our Book: Avocado Variety Guide, Snack or Guacamole?

📚 Learn more:



🎥 These Avocados survived 25F hard freeze 3 nights of Florida Record Freeze

#Food_Forest #Avocado #Discover #How_to

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Date: 12 Sep 2019

Helping Citrus and other fruit trees with Nutritional Supplements

Q: Can you recommended a product to help with my citrus? Combating greening and chlorosis.

A: Citrus greening is spread by an insect called the Asian citrus psyllid. The psyllid feeds on the stems and leaves of the trees, infecting the trees with the bacteria that causes citrus greening. Florida Citrus growers dedicated the last decade to researching citrus greening. Officially, currently there is still no cure, however, some Nutritional solutions have shown promising results. To slow the progression of citrus greening in infected trees, nutrients are applied to the leaves and to the roots. Providing better nutrition helps trees fight against citrus greening and enables them to continue to produce quality fruit.

We recommend the following products for use on regular basis:

SUNSHINE Epi is a natural Brassinosteroid plant hormone and a bio-stimulant that may be very effective as citrus greening treatment. It works through plant's immune system and shows amazing results of recovery of weak and sick plants.

SUNSHINE Superfood, a complex micro-element supplement, maintains plant's health and provides vigorous growth.

SUNSHINE-Honey is a basic nutritional complement, it contains essential plant micronutrients Boron (B) and Molybdenum (Mo). These elements are essential to vegetative and reproductive growth, cell expansion, tissue growth, and fertility. A very common problem for most unimproved garden soils is lack of Molybdenum and Boron as soil micro-component. This results in underdeveloped / low quality fruit and/or premature fruit drop. Applying SUNSHINE Honey on your fruit trees will fill that gap and help a fruit tree to form a healthy fruit.

Macro-nutrients should be applied in combination with micro-nutrients on regular basis:

Mango-Food - Smart Release Fruit Tree Booster (works great for all tropical fruit trees)
Fruit Festival Plant Food - Ideal blend designed to improve fruit trees health and vigor, and increase crop yield.

See SUNSHINE Boosters page for the complete list of plant boosters.