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.

☃️ Winter is choosing season

Smokey: "December is for planning, not planting."
Sunshine: "Gift card now. Perfect plants later."
Smokey: "You surprise me sometimes. Must be the donuts."

This time of year always feels special to us. The days are shorter, the garden slows down, and we finally have a moment to pause, look at our wish lists, and dream a little about spring.

As gardeners, we know winter is not really planting season. It is choosing season.

It is when ideas take shape. When we think about what we want to grow next, what we want to add, and what we want to do differently when warm days return. That is why, in winter, the best plant gift is not a plant itself. It is the promise of one.

Cold weather and holiday shipping can make winter plant deliveries stressful, especially for tropical plants traveling north. A gift card lets plants wait for the right moment, and lets the gardener enjoy the fun part now: planning, choosing, and imagining.

It also solves something we all know too well. Every gardener is wonderfully different. Some dream of fruit trees, others of flowers, rare collectors, or easy growers. Some plant in containers, some in the ground. Guessing is hard. A gift card lets them choose exactly what fits their garden and their vision.

🎁 Holiday Gift Card Bonus

To make the season a little brighter, we are offering a holiday gift card bonus through 12/31/2025.

When you purchase a gift card, we add 15% extra value. Just add Christmas greeting in gift card message field. For example, a $100 gift card becomes $115 to spend.

The bonus value is not valid with other promotions or discounts. Gift cards cannot be used to purchase other gift cards. Bonus value is added at the time of purchase.

🎁 Get a gift card