Garden Blog - Top Tropicals

Date: 6 May 2026

Why your plants need more than NPK

Why your plants need more than NPK



Most fertilizers focus on just three numbers - NPK. But that’s only part of the story. If your plants look okay but not amazing, or grow but don’t really thrive, they’re likely missing the smaller pieces that make a big difference.

  • ☘️ Complete nutrition your plants actually use


Plants need more than just NPK. They also require a full range of microelements like iron, boron, magnesium, calcium, and others. These support photosynthesis, sugar movement, and internal plant processes.

Sunshine Boosters include a full spectrum of these nutrients in balanced amounts. This gives plants complete nutrition without needing extra products for basic care.

  • ☘️ The "Potassium Pump" - how plants move water and energy


Potassium plays a central role in how plants move water and energy. You can think of plant cells as tiny rooms with doors that open and close. Potassium helps control these openings.

Where potassium goes, water follows. This movement fills plant cells, making them firm and strong. It also helps move energy through the plant, supporting fruit development and flowering.

With enough potassium, plants handle drought better, grow stronger, and produce better crops.

☘️ Calcium - the backbone of plant strength



Calcium plays a key role in building strong plant structure and keeping growth stable. It is a major part of cell walls, so it directly affects how firm and healthy the plant tissues are. When calcium is available, plants develop stronger stems, better roots, and more solid fruit with improved shelf life. It also helps regulate how nutrients move inside the plant and supports proper cell division, which is important for new growth, root tips, and developing fruit.

Calcium improves resistance to stress, including heat and disease, and helps prevent common problems like blossom end rot, weak growth points, and poor fruit quality. Because calcium does not move easily inside the plant, a steady and available supply is important throughout the growing cycle.

Calcium cannot be mixed with NPK dry fertilizers. It forms insoluble compounds with phosphates and sulfates, so it has to be dosed separately.

In Sunshine Boosters, Calcium is present along with additives - complex agents and pH regulators. This allows you to dose calcium, sulfates, trace elements and other additives in one solution without fear of fertilizer lockout.

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Get your plants real food

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Date: 13 Apr 2021

Healthy Plants: Q&A from Mr Booster

Why my Avocado is not flowering?

Q: I have 5 avocados. Three of your cold hardy varieties and two others that have all flowered and set fruit in the past. The last two years including this year, not a single one of them has put out any flowers. I am getting lots of new growth like one would expect on a tree too young to flower. The last two years have been very mild with out any damaging frost where in previous years they lost all their leaves due to frost yet started putting out flowers once winter was over. I am confused because they have all flowered and set fruit previous years. Any ideas would be appreciated.

A: From information you provided, and considering the trees get lots of full sun and cold was not an issue, the only explanation is - lack of nutrients. Here is an example.
Very common situation: you get a small 2-3 ft Avocado or Mango tree in 3 gal pot (or even smaller) from a nursery, full of flowers, and sometimes even a small fruit. You bring it home, plant it in the ground or a bigger pot, it looks happy and grows like crazy. Then next year - oops, no fruit, sometimes not even flowers. What happened?
When the tree lived in a nursery, it was provided with all necessary nutrients through the injector systems (continuous feed); or some nurseries may use top dress smart release on regular schedule. Regardless of fertilizer type, professional grower's set up delivers plant food non-stop, on regular basis, with balanced formulas. Plants are not only growing fast but also ready to produce, since nutrients are always available for a full growth cycle.
When you plant a tree in the ground (or larger pot), conditions change. They may be beneficial for the plant: lots of room for roots to establish, hence lots of vegetative growth. Even if you planted it using good quality fertile soil, this soil may contain mostly nutrients responsible for vegetative growth (branches and leaves). Chances are, your soil may be rich in Nitrogen (good for green growth), but poor in other elements responsible for flowering and fruiting (Phosphorous, Potassium, and many important micro-elements such as Molybdenum, Boron, Iron, etc.). Besides, existing soil gets exhausted quickly, and within a year a two, if you don't add fertilizer, flowering and fruiting may be reduced or even stopped. This is why fertilizing program is very important for fruit trees that are expected to bring a crop soon.

We recommend:

- SUNSHINE C-Cibus - Crop Nutrition Booster - balanced food for fruit trees
- SUNSHINE-Honey - sugar booster - promotes more efficient blossoming and pollination, makes flowers bigger and reduces bud drop
- SUNSHINE SuperFood - for improving fruit trees production

Also keep in mind that some fruit trees have a habit of "skipping" a year and may either produce less or not produce at all every other year. In any case, balanced nutrition program can help to fix this "bad habit".

Date: 26 Mar 2026

🌸 How to Grow Adeniums Without Overthinking It

By Tatiana Anderson, Horticulture Expert at Top Tropicals with Smokey & Sunshine help

Adenium  desert  roses  blooming  in  greenhouse  during  winter  freeze,  rows 
 of  potted  plants  with  colorful 
 flowers

Adeniums blooming inside the Top Tropicals greenhouse during the record freeze of February 2026 - protected from the cold, kept above 40F, and fed with liquid Sunshine Megaflor. They responded with a spectacular, synchronized winter bloom. Quite a surprize!

✅ Simple rules that actually make them bloom and grow well

  • Light - The more light, the better the growth and flowering. Full sun is ideal, but in very hot climates, filtered bright light keeps plants looking healthier.
  • Water - Water well, then let soil dry on the surface. Sitting in wet soil damages roots, but letting plants dry out too often can push them into early dormancy.
  • Pot and shaping - Use a shallow pot with excellent drainage. To develop a sculptural caudex, lift the plant slightly each time you repot and remove some of the top soil so upper roots become exposed. Over time, this creates a thicker, more prominent base.
  • Soil - Use a fast-draining Adenium potting Mix.
  • Adenium  desert  rose  plant,  fast  draining  soil  mix  in  hand,  and  bonsai 
 style  adeniums  blooming  indoors

    Healthy adeniums start with the right foundation - a fast-draining soil mix and careful watering only when dry to avoid caudex rot.

  • Cold hardiness - Adeniums are tropical and do not tolerate frost. Keep above 40 F. Brief drops to mid 30s may be tolerated if dry, but cold and wet conditions can damage or kill the plant. In cooler climates, bring indoors or protect during cold nights.
  • Indoor winter care - Move plants indoors before cold nights. Place in the brightest spot possible, ideally a south-facing window. Or use additional lighting. Water very lightly and less often, as growth slows. Do not fertilize during dormancy. Some leaf drop is normal in winter.
  • Freshly  grafted  Adenium  desert  rose  plants  in  dormancy  arranged  in 
 greenhouse  rows  with  bare  branches

    Freshly grafted adeniums in dormancy - a crucial resting phase. Keep watering low (once a month) and avoid overcare; this is the time to let them rest and etablish.

  • Feeding - Adeniums respond best to liquid fertilizer. We apply Sunshine Megaflor Booster with each watering throughout the year. During dormancy, watering is reduced, so fertilizer use decreases accordingly. Consistent, light feeding promotes strong roots, a thicker caudex, and improved flowering.
  • Pruning - For multiple blooms, regular pruning is essential. After flowering, cut back long or leggy growth to stimulate branching. Each new branch can produce more buds, leading to a much fuller bloom in the next cycle.

Pruned  and  unpruned  Adenium  desert  rose  plants  showing  difference  in 
 branching  and  flowering

Pruned vs. unpruned - the difference is clear. The four plants on the left were trimmed 6 months ago, while the two on the right were not. Same species, very different results.

✍️ Learn more about Adeniums from our Blog

🎥 Watch videos of Adenium Rainbow

Free Shipping on Adeniums
Add bold color and unique forms to your collection with no extra shipping cost.

🛒 Explore Exotic Adenium varieties

Leggy  Adenium  desert  rose  plants  with  sparse  branching  and  flowers, 
 ready  for 
 pruning

These Adeniums are screaming for pruning so they can bush out and produce more blooms

Date: 17 Sep 2020

Healthy Plant Food: Q&A from Mr Booster

How to make pineapples fruit?

Q: I have purchased a Sugar Loaf Pineapple from you a few months ago, it is growing well and producing little babies around the main plant! I am so excited to have my own Pineapple plantation! How soon will they fruit and is there anything I can do to make them fruit faster? Can I give extra fertilizer just like I do for other garden plants?

A: It takes a year or two until a pineapple plant gains enough energy to be ready to fruit. However the total time depends on growing conditions and availability of all necessary nutrients.
Pineapples, like all other plants from Bromeliaceae family require very delicate fertilizer; traditional fertilizers, if overdosed, can harm Bromeliads and even kill them. At the same time, Pineapples require extra Magnesium for good production, and not every fertilizer has it, or contains it in well-accessible compounds / proper proportions.
Sunshine Ananas Booster is a scientifically formulated, mild fertilizer, designed especially for tender Bromeliads, containing Magnesium just in perfect concentration. Its amino-acid based ingredients are natural and work perfectly for edibles and organic gardens. Just follow the label instructions and speed up the fruit production 3-4 times!

In the photo: Mr B checking his Sunshine Boosters inventory before shipping to his Good Customers.

Date: 30 Aug 2019

How to grow Angel Trumpet in Florida

Q: I purchased an Angel trumpet in March, 2018. It wasn't looking very good so I asked what to do about it. Your reply was to fertilize and keep it watered. I did & it started to improve. I went on vacation & it reverted, dropping leaves... How do I keep it happy?

A: With growing Angel Trumpets in Florida, there are a few things that may go wrong, although in general Brugmansia is a vigorous rapid grower. Once the plant is established, it is very easy to grow. Looks like your plant had some troubles at the start and is still struggling. Dropping leaves could be a sign of a root problem.

These are the main important points for Brugmansia growing:
1. Must be planted in a high spot, using very well-drained soil. Brugmansias do not like soggy conditions (happens with Florida summer). They like water, but only as long as drainage is good.
2. Full sun is a must for a healthy plant.
3. Brugmansias are heavy feeders. Fertilize at least once a month once the plant is established:
Pink N Good Daily Plant Food - Flower Booster
Angel Trumpet Delight - Smart-Release Booster
4. They are susceptible to bugs... check underneath the leaves and if any pests, spray with solution of any vegetable oil, water, and some dish soap.

The bottom line is, do not overwater but don't let it dry out. It's rainy season now, maybe too much rain affecting the plant.
Try these Sunshine Boosters, they have amazing results and often help us to bring stressed and weak plants back to life:
SUNSHINE-Power - plant booster
SUNSHINE-E - plant booster