Healthy Plants: Q&A from Mr Booster

Fertilizing in Winter

Q: I have many tropical plants in my garden, both in the ground and in pots. I realize it is wintertime and some of them, the Hydrangea, Hibiscuses, and roses are in bloom but the rest of them seem wilty and droopy. Is it alright to fertilize them now, or should I wait for a few days? I have an all purpose tropical fertilizer and a 20-20-20 also. Please advise what to do.

A: During wintertime, tropicals may suffer from low temperatures and lack of sunshine which causes droopy leaves, and leaf loss.
Regardless of the cause and plant condition, you should NEVER apply traditional dry fertilizers during cool months. When cold, dry fertilizers (EDTA-chelated) may create nutrient lock up in soil and damage the roots. Dry fertilizers (both granulated and water-soluble) can be used only during hot season - when min temperatures stay above 65F for at least a week in a row, and daytime temperatures are over 75-80F. During hot, active growth season plant metabolism increases. This provides less chance for a chemical root burn, as the nutrients are used up quickly.

However, liquid fertilizers, as long as they are amino-acid based, can be used year round. From our own experience last winter, we discovered that fertilizing sickly looking plants (with signs of cold damage and root issues) with Sunshine Boosters actually revived those plants. Sunshine Boosters even brought back to life some hopeless specimens. Take a look at this gardenia that grows in our garden (picture above). See full article.
In your case, it would be beneficial to use a mild formula of liquid boosters in combination with Sunshine Epi -a natural plant hormone that boost their growth and helps to cope with cold-, temperature- and low-light-related stress.

These are the products we recommend:
- Sunshine Bombino - add to every watering
- Sunshine Epi - twice a month as foliage spray

Since you grow plants in pots, feeding program is especially essential, because plants are limited with a container size where roots can't reach out to more food in the outer soil. In professional nursery set up with injector irrigation systems, container plants are fed daily (depending on season, more than once a day) with every watering. This is why greenhouse plants are so healthy looking.
So feel free to give your plants Sunshine boosters with every watering, dozing according to the label. During cold period, plants need less frequent watering, so fertilizer input will be balanced accordingly, it will depend on temperature and plant metabolism.

Sunshine Bombino - mild, "pampering" formula for young and tender plants, as well as plants recovering from stress and/or winter damage.

Date: 15 Dec 2020

Healthy Plants: Q&A from Mr Booster

What is an ideal potting mix?

Q: A few years ago, I purchased a Barbie Loquat from you, and I'm pleased to say it's been growing very well. I now have several loquat seedlings. I have read that a well-draining medium should be used, and I have found that the various formulations provided on the web for such medium seem vaguely reminiscent of the recipe provided in your transplanting instructions. Therefore, I would like to retrieve your recipe, unless you could recommend an even better one?

A: The main requirements for a good potting mix are:
- perfect drainage, allowing air circulation that is so necessary for healthy roots; oxygen circulation helps to avoid root rot
- water retention: to keep nutrients in soil
- low pH (soil acidity) which is important for most tropical plants
- adequate amount of organic matter in the mix, in combination with proper fertilizer program

In our nursery we experimented with many different potting mixes for the past couple decades. We ended up with an ultimate mix for tropical container plants that we designed ourselves. This custom mix is called -

Abundance - TopTropicals professional soilless potting mix

It meets all the requirements above which makes it a perfect mix. All our plants are happy with it. Abundance is a professional quality (nursery-grade) potting mix with great drainage characteristics, ideal for any tropical plants. It is organically derived soil-less mix, free of any additives.
Ingredients are:
- fine Canadian peat moss
- coconut coir
- perlite
- aged pine bark (soil conditioner).
See more info on soil mixes.
We have this mix available for purchase in different packaging sizes - 2, 3, and 7 gal bags.

Besides proper potting mix, all container plants require regular fertilizing. We recommend the newest, scientifically balanced fertilizers Sunshine Boosters that are natural, eco-safe, great for all edibles and organic gardening. They are safe to use with every watering, provide all necessary elements for plant daily needs, and won't burn the roots.
For your loquat tree, consider Sunshine C-Cibus, it boosts both flowering and fruit production. Loquat is Winter-Spring bloomer, hopefully you will get some crop soon!

See more information about potting mix science

Date: 29 Sep 2020

Healthy Plant Food: Q&A from Mr Booster

Why my Sapodilla is not fruiting?

Q: I bought a Sapodilla tree from you several years ago, Silas Woods. I live in Houston area. The tree grows and produces blossoms for fruits, but then they just dry up and fall off. To-date, I have not gotten any fruits off the tree. Is there a reason for this? I really want a fruiting tree because Sapodilla is one of my favorite fruits. I have attached pictures of the tree. Please help.

A: Silas Woods is a free-flowering variety and in favorable conditions it should produce fruit almost year round, considering warm temperatures. The fact that the tree is producing flowers indicates that it is strong, overall healthy and ready for production, but for some reason these flowers don't set fruit. There may be several reasons for such behavior.

1) Too high temperature and too low humidity
In Houston area, humidity should be good in summer. However, if temperatures stay above 90F for a long time, this may cause flower dry-n-drop.
Solution: try to move the potted tree into filtered light, or in a spot where it does not get direct burning sun during the hottest hours of the day (morning sun is the best)

2) Root bound.
Solution: check if the tree needs stepping up into a larger container.

3) Lack of certain nutrients that are responsible for proper fruit formation.
In particular, elements B (Boron), Mo (Molybdenum), and a few other micro-elements (Fe - iron, Cu - Copper, etc.). This is most likely the cause of a flower drop. This is very common reason for undeveloped fruit or lack of fruit in container-grown fruit trees. When grown in the ground, plants can reach out to all necessary elements in surrounding soil (considering soils are not too poor on necessary elements). In a pot, a supply of nutrients can be exhausted very quickly, so a quality fertilizer program is very important. Fertilizer must include all necessary nutrients in easy accessible form, and a plant must have their constant supply for proper development.
Solution: prescribe to your Sapodilla tree the following combination of plant food:
- SUNSHINE C-Cibus - Crop Nutrition Booster. It will provide well-balanced amounts of high absorption Nitrogen, as well as other macro-elements - to provide enough energy to the tree, plus a combination of all necessary micro-elements. It is safe to apply this fertilizer as frequent as with every watering, including winter time.
- SUNSHINE-Honey - sugar booster. This supplement has a high content of elements Mo and B - once the tree starts getting them on regular basis (a few times a year, according to the label), it will change its habit dropping flowers and/or premature fruit drop. As extra bonus, Sunshine Honey makes fruit sweeter by bringing sugars from all over the plant and concentrating them into fruit.

4) Lack of pollinating insects.
Solution: For most effective pollination, we always recommend to put some pieces of fruit under the tree, apple peels, or even banana peel. Those attract tiny beetles that are responsible for small flower pollination.

With winter time approaching, fruiting season is about to end, however, do not get discouraged and start the fertilizing program right away: this will bring up the plant into a healthy stage within a few months, and by next season it should be covered with fruit you like so much! Remember, Sunshine liquid fertilizers can be used year round, including winter, without a risk to burn roots or overdose, as long as you follow label instructions.

SUNSHINE C-Cibus - Crop Nutrition Booster from Garden Series, or Combo Total Feed Collection - all nutrients in just one bottle, for fruit trees and edibles.

Date: 15 Mar 2019

Save Coffee from extinct!

The most popular kind of coffee for commercial production, Coffea arabica, is already on the endangered species list. According to research, Coffea arabica plant could become extinct in as little as 60 years.

Coffee requires a forest habitat for its survival. With so much deforestation going on around the world, wild coffee species are being impacted at an alarming rate. Coffee plants grow in very specific natural habitats, so rising temperatures and increased rainfall brought by climate change can make coffee impossible to grow in places the plants once thrived.

Read the whole article

See video: Top Tropicals Showcase: Coffee plant

To reserve a cup of coffee for yourself and your children, plant the Coffee tree now!