Date: 19 Jan 2021
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: 6 Feb 2023
How to make your Olive tree grow faster
In past blog posts, Ed Jones shared his insights on cultivating olives in Central Florida using Sunshine Boosters. Despite olives
having a reputation for slow growth and being uncommon in Florida gardens, Ed has
successfully grown not only productive but also aesthetically pleasing trees
in just two years. As seen in this winter photo, the trees are thriving!
Encouraged by Ed's success, we have decided to plant olive trees as well. They are low maintenance and tolerant to cold
temperatures. Simply heed Ed's advice, and you too can have a beautiful tree that produces your
own olives in the future.
Learn more

Date: 27 Feb 2020
7 secrets of a Happy Avocado Tree
Q: I purchased an avocado tree from local garden centers three times but every time it dies on me. My neighbor has a nice tree in his yard and it grows beautifuly. I just purchased one online from you and I need to know what I was doing wrong? Are there any secrets how to make an Avocado tree happy? I have a big garden and several mango trees, but no luck with Avocado...
A: Avocado tree is famous for being such a pain to establish. But once it starts growing, it's growing! We will share a few simple tricks how to make it right.
1. Plant high and provide good drainage. Wet feet is number one
reason for failing an avocado tree. It doesn't like wet soil and won't
tolerate soggy conditions. Plant it in the highest spot of your yard and slightly on
a "hill" (3-4"higher than the surrounding ground).
DO NOT plant Avocado tree in low spots or wet spots of your yard. Save
those spots for Cannas or Black Sapote or even a Mango if you want a fruit tree there.
2. Use quality soil. Use only well-drained soil with high content of
organic matter. You may add compost to existing sandy soil, or add some professional potting mix that contains pine bark and perlite. Remove
rocks from the hole if you see any while digging. Dig a big hole and fill it
with a good soil; compact the soil in the hole very well before setting the
root ball. Reminder: plant the tree high!
3. Water regularly. After planting an Avocado tree in a nice high
spot with a good drainage, start watering it... daily! Avocado likes water,
although it doesn't like wet feet! Once you figure out this combination, you've
got the recipe of success. Water by hand daily for the first week after
planting, then twice a week for couple weeks, then once you notice new growth -
you may rely on sprinklers, but keep watching the tree and don't let the soil
over-dry. It must be slightly moist, but not soggy.
4. Fertilize. For such finicky tree, we suggest mild formulas of
fertilizers. Dry fertilizers may burn roots, especially of a young tree. Even
smart-release granulated fertilizers should be used very carefully. The best
way to feed your young avocado tree - get a complete set of Sunshine Boosters Pro system. It has all necessary elements for all
stages of plant development and never burns the roots. Sunshine Boosters Pro can
be used with every watering - no need to guess how much and when. Besides,
it is a natural fertilizer based on amino acids - exactly what you want to use
on your fruit trees and other edibles!
5. Boost immune system of the tree. Apply Sunshine Epi plant hormone every 2 weeks as a foliar spray to boost
immune system and metabolism of the tree and protect it from diseases. Epi makes
plants (especially young plants) grow twice faster! It also enhances effect
of fertilizers by increasing plant metabolism.
6. Do not prune until you see significant growth. The tree is small
and can use as many leaves and branches as possible for photosynthesis and
healthy metabolism. We suggest to avoid pruning for at least the first year. On
the second year your tree most likely will be covered with flowers (assuming
you followed fertilizer program). Let it go through the blooming stage and
setting fruit; prune in Fall after fruiting is over.
7. Keep number of fruit to minimum for the first crop. Don't let the
small tree exhaust itself. Keep just 2-3 fruit to develop. The next year, no
need to control fruit quantity, the tree will develop as many as it can
support.
P.S. If you got the tree from a mail-order, remember to establish it
in a pot before planting in the ground; move gradually from shade to sun.
Follow planting instructions.
Learn more about Sunshine Nutrition System - a Natural solution for your garden.
Date: 16 Nov 2019
When to apply super boost?
Sunshine Boosters: a breakthrough in Winter fertilizing
In the photo: plants are tough survivors. Life can't be stopped even by a brick road!
Q: Just wanted to know best time of day to apply super boost as spray and watering? Only listed to make sure night temp doesn't drop below 65F...
A: As a rule of thumb, plant's needs in fertilizers are very low
in the cold season because they consume less nutrients during dormancy. For
tropical plants, when minimum temperatures drop below 65F - we stop
applications of dry (granulated) fertilizers until spring, to avoid root burn.
Liquid Sunshine Boosters are exceptions from this rule to a certain extent,
for 2 reasons:
- they are amino-acid based which means, salts do not build up in the soil,
and thus will not burn the roots even with slower plant metabolism.
- concentrations/formulas are mild and designed for as frequent as daily
watering
Tips for winter fertilizing:
1) When a plant goes into full dormancy (drops leaves and does not show any new growth), you may stop fertilizing with any Macro NPK products (both dry and liquid)
2) If a plant is evergreen and continues growing during the cooler
period, and especially if it is a winter bloomer, mild liquid fertilizers can be
applied, depending on the stage of plant development.
Robusta and TotalFeed are used for vegetative growth and pre-flower.
Megaflor and C-Cibus are used for winter flowering/ fruiting plants during the bloom
stage.
See full list of liquid boosters
3) Micro-elements can be used all year round for all plants that are not dormant (do not drop leaves)
4) Always use Sunshine-Epi as a foliar spray to activate immune system and unlock protective mechanisms, BEFORE applying other boosters. It is especially important during Fall-Winter for improving cold tolerance and disease resistance.
5) Always apply foliar spray and/or drench the soil with solutions in morning hours so the plant has time to process the nutrients during daylight when metabolism is the most active.
6) Avoid any dry fertilizers during winter
Date: 22 Oct 2025
Which dry fertilizer to use - slow release or controlled release?
🌳 Which dry fertilizer to use - slow release or controlled release?
❓ Q: You offer two kinds of dry fertilizers - Slow Release Trop Dress and Controlled Release Green Magic. What is the difference, and which one should I use? I used your water-diluted Sunshine Boosters with every watering, but now that I’ll be away for a few months, I just want to give my garden a long-lasting fertilizer.
- ✔️ A: Top Dress Slow Release Fertilizer is used for quick greening-up. Although it’s called “slow release,” the nutrients become available fairly fast. It contains soluble nitrogen (N), phosphorus (P), and potassium (K) that dissolve with rain or irrigation, acting within a week or a few weeks depending on temperature and rainfall. It’s great for giving your plants a quick boost of “fast food.” We use Top Dress mainly for in-ground plants. It can be used in pots only during warm weather and active growth, but not in cooler months, as it may burn roots. Since we introduced Green Magic, we mostly use Top Dress only for garden beds and landscapes.
- ✔️ Green Magic Controlled Release Fertilizer is a true long-term, controlled-release fertilizer. Thanks to its PolyOn Technology coating, it provides steady, consistent feeding for 5-6 months. Unlike regular dry fertilizers that dump all nutrients at once, Green Magic releases them gradually - no burn, no guesswork, just steady nutrition.
🛒 Shop Plant Food
& More
📚 Learn more:
- Green Magic effect: before and after
- The SECRET growers never tell you: simple trick how to bring plants back to life and keep green
- Give your plants their magic treat
- How to make plants green quickly: Green Magic - the fertilizer that truly works like magic!
- How to to make leaves green
- What Fertilizer to Use Now and How? Part 1, Part 2, Part 3
- Why my plant turned yellow and why plants need Micronutrients?
- Why Should I Use Sunshine Boosters
- Why is my palm tree turning yellow?
- Which fertilizer to use: Organic or Inorganic?
- How to make plants green
- The Truth about fertilizers
#Fertilizers #How_to
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