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.

7 reasons to get an Aroid Houseplant

1. It's almost Winter... You need something tropical in your home! Aroids have the most tropical look!
2. Aroids tolerate low light conditions of indoors.
3. Aroids require almost no care. Care is easy because if you watch for the signals, the plant will tell you exactly what it needs
4. Aroids adapt to wide range of conditions. Many of them thrive in neglect and survive even in sub-optimal conditions... Unlike most tropicals, Aroids don't experience much stress when moving from indoor to outdoor settings and adapt readily to conditions inside the home.
5. Aroids are compact and easy to manage.
6. Aroids are fast growing while still being compact.
7. They are on sale now!

Check out our Philodendrons, Monsteras, Fancy Syngoniums, Alocasias, Colocasias.

Healthy Plants: Q&A from Mr Booster

Dragon Fruit Magic Tricks

Q: I purchased two sweet red pitayas, that arrived and were planted on May 28, 2020, they were damaged but not serious. my question is this one pitaya is a beautiful green, and has grown 6or 8 "already, the other is bigger and is a grayish green and has not shown any sign of growth at all in six weeks, how long do I wait before I throw it out and buy another?

A: Being a cactus, sometimes Pitaya slows down its growth waiting for more favorable conditions. If one of your plants doesn't show any new growth, just give a it some more time and make sure the plant stays happy. To make pitaya happy, provide the following:
- Water. Unlike most cacti, Pitaya prefers regular watering (but not a wet soil). Make sure it is planted in well-drained media. Do not water again if soil remains moist, wait until it dries out on the surface. During hot weather, Pitaya enjoys light daily watering.
- Light. Unlike most cacti, Pitaya benefits from a filtered light especially while establishing. Try to create a temporary shade over the plant until it starts active growth (if grown in the ground), or move the pot in filtered light. Dull color or dry spots are signs of sun burn. Once the plant shows new growth, you may remove sun protection, or move the pot gradually into the full sun.
- Food. Pitayas are heavy feeders. Use the following fertilizer:
SUNSHINE C-Cibus - Crop Nutrition Booster

Q: I've been growing dragon fruit cuttings from Okinawa, Thailand and Vietnam for several years in pots and cannot get them to fruit. Any fertilizer suggestions? I live in Northern Virginia so I bring the massive pots in the garage under lights and a heater for the winter but back outside once the temperature warms up.

A: There is a little trick to get Dragon fruit to flowering and fruiting. This plant likes flowering when it is attached to a strong support. In commercial plantations, they use special trellises/frames made out of logs, but you can make one yourself using simple materials.
See article: Do-It-Yourself Support Structure for Dragon Fruit.
And of course, don't forget a special plant food for tropical fruit - Sunshine C-Cibus.
You can successfully get your Dragon fruits to fruit in pots, providing bright light in Summer. In Winter, keep the plants on a dry side to give them some rest and a chance to hibernate before the next fruiting season.

Establishing Mamey Sapote

Q: I purchased Mamey sapote last fall and am very excited about having it in my yard. It lost leaves during the winter, but then budded and put on a lot of beautiful leaves. I was hand watering since this covid stay at home event, and thought I'd put it in a larger container, 10 gallon. About 2 months after transplant and hand watering the leaves turned yellow. I cut back on watering, allowing some dryness between. Some leaves now have fallen off, but looks like new ones forming. What have I done and most importantly now, what do I need to do so she survives? I haven't yet decided exactly where to plant her... so hoping she can stay in container for a bit longer while recovering.

A: It is possibly a combination of over-watering and seasonal changes (re-leaf). During this time of the year, Pouteria sapote loses old leaves and grows new ones. This plant is semi-deciduous, which means, it drops leaves during unfavorable conditions (too dry, too wet, too cold, to hot, etc. = any stress). The new buds are healthy. Give it a couple of weeks. Reduce watering. Don't water again if the soil is still moist. If planted in the ground, it will be easier to control the moisture, as long as you plant it high enough (at least 3-4"above the surrounding area, like on a little hill, for a better drainage. See how to plant a tree.
Once you notice a new growth and healthy leaves, give the plant some food:
SUNSHINE C-Cibus - Crop Nutrition Booster
Mango-Food - Smart Release Fruit Tree Booster