Healthy Plants: Q&A from Mr Booster

How to get Canistel tree to produce
without dropping flowers and fruit

Q: My Canistel tree is 3 1/2 years old and is growing very well, see the picture below. It gets hundreds of pea sized "berries" but then they fall off. No canistel fruit. What's wrong?

A: You have such a nice looking tree, it is a shame you can't get any fruit to ripen.
In our experience, Pouteria trees dropping fruit prematurely is a very common problem. There may be one of the following reasons, or a combination of them:
- Cold winters may affect production, and while Canistel is generally pretty hardy tropical plant that can easily withstand short periods of chill, the fruit may never form properly if it had a cold winter.
- Lack of water. Canistel tree is pretty drought tolerant, but for the proper production cycle it needs regular irrigation. Especially during hot summer.
- The tree may be not strong enough; young trees drop fruit very often when they don't have enough "fruiting energy" built up in their system.
Your tree looks well established and vigorous, however, flower/fruit drop is often a sign of insufficient nutrients of particular kind, usually Boron (B) and/or Molybdenum (Mo): either when a tree is too young and not strong enough, or because of poor soils and lack of necessary elements.

Here is what can be done, considering you live in a warm, frost-free climate.

1. Provide regular fertilizing program. We recommend liquid fertilizers Sunshine Boosters that are safe to use with every watering and year around. It is beneficial to switch plants from traditional "slow-release" fertilizer to the liquid one because it makes a huge difference in plant growth and flower/fruit quality and quantity. See also:
- Why liquid fertilizers are better than dry
- Article about benefits of liquid fertilizers.

Use this plant food for your Canistel tree:
SUNSHINE C-Cibus - Crop Nutrition Booster

2. Apply micro-element remedies that are very effective for improving fruit production, especially when flower or fruit drop occurs:

SUNSHINE Honey - promotes more efficient blossoming and pollination, makes flowers bigger and reduces bud drop.
SUNSHINE SuperFood - improves plant vigor and quality and size of flowers These are all natural, eco-friendly supplements that work great for fruit trees and other edibles.

What is the most popular and easiest tropical fruit tree to grow indoors?

No doubt about it - it's the Coffee Tree.

• Coffee is shade-loving and easy to grow with regular water
• It grows into a dark green shrub or small tree (about 3 to 5 feet tall in a pot)
• Its fragrant, star-shaped flowers resemble gardenias
• The whole fruit is edible and turns green to yellow to red
• The seeds are real "coffee beans" that can be dried, roasted, and ground at home.

Five Reasons to Grow a Coffee Plant

• Perfect Indoor Fruit Tree: Thrives in filtered light and stays compact
• Low Maintenance: Forgiving, adaptable, and ideal for new gardeners
• Aesthetic Appeal: Glossy green leaves and clusters of white blooms
• Homegrown Coffee: Yes, you can roast your own beans.
• Year-Round Beauty: Evergreen with seasonal fragrance

Coffee Plant Care Tips

• Light: Bright, indirect light is best. Avoid harsh afternoon sun.
• Water: Keep soil lightly moist but not soggy. Let the top inch dry out before watering again.
• Humidity: Loves higher humidity. Mist regularly or place on a pebble tray.
• Fertilizer: Use a balanced, gentle fertilizer like Sunshine Boosters C-Cibus every few weeks during growing season.
• Soil: Loose, rich, and well-drained. High in organic matter and slightly acidic. For potted plants, use a quality indoor tropical mix, such as Top Tropicals Abundance mix
• Repotting: Refresh soil and size up the pot every 1–2 years to keep roots healthy.
• Can I grow it outdoors?: Yes - bring it outside in warm months and back indoors before frost. It's best suited for USDA zones 10-11, but container growing gives you flexibility in cooler climates.
• How long until I get beans?: Expect flowers and fruit within 3 to 4 years from seedling stage - often sooner if you start with a young tree.
• What does the fruit taste like?: Mild and sweet-tart, like a mix between a cherry and a cranberry. You can eat it fresh.

How to Make Coffee from Your Own Tree

• Harvest: Pick the ripe red cherries
• Pop and Soak: Squeeze out the beans and ferment 1-2 days to remove pulp
• Dry: Spread out to dry for 1-2 weeks until hard and papery
• Husk: Remove the thin shell to reveal green beans
• Roast: Use a dry skillet or oven until fragrant
• Grind and Brew: Cool, grind, and enjoy the freshest coffee you've ever had.
  Learn more: How to make your own coffee from homegrown beans

Coffee Health Benefits

• Rich in antioxidants - supports heart and brain health
• Boosts focus and mental alertness
• Supports metabolism and fat-burning

Why Coffee Makes the Perfect Gift Plant

• Long-living and beautiful
• Symbolic, useful, and personal
• Great for coffee lovers, gardeners, and the "person who has everything"

Read Garden Blog about Coffee

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