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: 8 Oct 2024

Why Should I Use Sunshine Boosters?

Southern Landscape

Southern Landscape

Sunshine Boosters

Sunshine Boosters

😎 Why Should I Use Sunshine Boosters?



⚠️ Plants need nutrients to grow strong and healthy. Nutrients help plants develop roots, leaves, flowers, and fruits. Sunshine Boosters fertilizers provide all key nutrients.

Sunshine Boosters are specially made to give plants everything they need to thrive. They work for both indoor and outdoor plants.

😼 Why Sunshine Boosters are better than other fertilizers?

  • 🟡Easy to use: Just mix with water and feed your plants.
  • 🟡Balanced nutrients: They contain the right mix of essential nutrients like nitrogen, phosphorus, and potassium, as well as trace minerals.
  • 🟡No harmful chemicals: Sunshine Boosters are safe for your plants, pets, and the environment.


😎 Benefits of using Sunshine Boosters:

  • 🟡Plants grow faster and produce more flowers and fruits.
  • 🟡Stronger plants can resist diseases, pests, and tough weather.
  • 🟡Sunshine Boosters help plants recover from stress, like after being moved or pruned.
  • 🟡For all types of plants: whether you have tropical plants, vegetables, fruit trees, or flowers, Sunshine Boosters help them grow better.

Sunshine Boosters make your plants stronger, healthier, and more beautiful. By using Sunshine Boosters, you’re giving your plants everything they need to grow fast, resist stress, and produce lots of flowers or fruits. It’s the best way to keep your plants happy and thriving!

📚 Learn in more details from the article:


Why should you use Sunshine Boosters

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Date: 5 Sep 2024

10 common mistakes to avoid
with mail order plants

Cat  sleepng  on  houseplant

Q: How to get happy and healthy plants from mail order? Will they survive the trip and grow well after transportation? What mistakes should I avoid?

A: At Top Tropicals, we have over 20 years of experience shipping plants. We know how to pack them properly and ensure the safest journey possible. We ship the biggest and healthiest plants, and our customers are often amazed at how great they look after a few days in a dark box. But receiving a healthy plant is only half the adventure. Now that the plant is in your hands, it's up to you to keep it thriving. The first couple of weeks after shipping are critical. With the right care, your new plant can reward you with beautiful flowers and fruit for years to come. Here are 10 common mistakes to avoid when buying plants by mail order.

1. Not unpacking plants immediately
Leaving plants in the box too long can cause stress or damage. Unpack them as soon as they arrive to let them breathe and adjust.

2. Ignoring acclimation
Plants need time to adjust to their new environment. Don't place them in full sun or extreme conditions (heat, wind) right away.

3. Overwatering right after arrival
Many people water their new plants too much. Plants often need time to recover from transit, and too much water can cause root rot.

4. Stepping up too soon
Repotting immediately in a large pot can cause root rot. Plant in a pot just the size of a root ball, step up only after the plant is showing new growth.

5. Ignoring the plant's needs
Research the specific needs of your plant before it arrives. Light, water, and soil requirements vary greatly, and misunderstanding them can lead to issues.

6. Placing the plant in the wrong environment
It's important to give your plant the right temperature, light, and humidity based on its natural habitat. We grow tropical plants. They won't survive in areas with freezing temperatures.

7. Not trimming damaged branches.
Transit can cause minor damage to leaves or branches. Trimming these parts can help the plant recover faster.

8. Expecting immediate growth
Plants need time to adjust after the trip. Give them a chance to settle for a few weeks before expecting new growth or blooms.

9. Fertilizing too soon
Do not fertilize your plant right after arrival. Let it get established first - usually a few weeks - before adding fertilizer to avoid stressing the plant.

10. Not checking for pests
Always inspect new plants for pests. Shipping stress can lead to infestations, so a close check is vital.

By avoiding these mistakes and following the planting instructions included with your order, you'll be on the right path to creating your tropical paradise. Take care of your new plant, and it will thrive, rewarding you with vibrant growth for years to come.

Adenium  field

Date: 29 Oct 2024

How to overwinter tropical plants indoors

Mandevillas  indoors

10 key tips for successful overwintering

Q: I have two Mandevillas that thrived on my balcony all summer. Now that cold weather is approaching, I've moved them indoors to bright spots, but they're dropping and wilting leaves. How can I keep them healthy until spring? Should I fertilize them? Can Mandevillas grow indoors year-round?

A: First, keep in mind that the plants we call "indoor plants" or "house plants" are all tropical. However, not all tropical plants are suitable for indoor living. Some, especially shade-loving ones, thrive in indoor conditions, which is why we refer to them as "house plants" (philodendrons, monsteras, calatheas, peperomias, and many others, including some succulents). Others are less adaptable to the lower light and humidity typical of indoor spaces, but with a little extra care, you can overwinter them inside and move them back outdoors in spring. Mandevillas are no exception! Even tropical trees, including fruit trees, can tolerate a few months indoors if given the right conditions for semi-dormancy. Below are the 10 key tips for successfully overwintering tropical plants indoors.

1. Maximize Light: The more light, the better. There's no such thing as too much indoor light. If windows aren't enough, use LED grow lights, which stay cool and won't dry the air. Rotate plants every few days to prevent uneven leaf loss.

2. Reduce Watering: Less light and cooler temperatures mean plants need less water. Allow the soil to dry between waterings, and avoid overwatering - combination of cold + wet is especially harmful.

3. Maintain Moderate Temperatures: Most tropicals are happy with daytime temperatures around 75F and nights at 50-60F. In sunrooms or greenhouses, some can handle 45F if watering is kept to a minimum.

4. Boost Humidity: Avoid placing plants near heaters or vents that dry the air. Misting daily helps, or place pots on trays filled with water and pebbles to raise humidity around them.

5. Monitor for Pests: Check leaves weekly to catch insect problems early, as pests can cause serious damage or even kill the plant indoors.

6. Fertilize Smart: Use ONLY liquid, amino-acid-based fertilizers like Sunshine Boosters throughout winter; they won't burn roots since their dosage adjusts with reduced watering. Avoid dry, granulated, and EDTA-based fertilizers during winter and dormancy.

7. Use Micro-Nutrients: Along with macro-elements (fertilizers), supplement with micro-elements like Sunshine Superfood and bio-stimulants such as Sunshine Epi to build strong plants with robust immune systems, better able to withstand unfavorable conditions and resist diseases.

8. Hold Off on Pruning: Leaf drop and leggy growth are normal responses to winter. Wait until spring to prune, when new growth starts, to encourage branching and healthy foliage.

9. Don't Repot Yet: During dormancy, roots slow their growth. Repotting too soon risks root rot. Wait until spring when new growth appears to transplant into a larger container. Typically, roots grow in proportion to the above-ground parts.

10. Let Them Rest: Winter is a natural resting period. Avoid forcing growth - your plants will reward your patience with vibrant leaves and flowers when spring returns.

Cat  Indoor  Garden

Date: 27 Feb 2025

What Fertilizer to Use Now and How?
Five important keys to healthy plants

Sunshine  Boosters  Selection

Q: It's early Spring this year. Should I start fertilizing my plants sooner than usual?

A: Most fertilizer instructions recommend fertilizing tropical plants from March to November. This is because plants don't need as much food during the cooler months when many go dormant, and excess nutrients can burn the roots if not absorbed. However, for the most effective fertilizer program and healthy plants, consider these points:

1. Sunshine Boosters Year-Round

Liquid amino-acid-based fertilizers like Sunshine Boosters are safe to use year-round. Since watering is reduced in cooler weather, the intake of water-soluble fertilizer is also lower, providing plants with just the essential nutrients for their minimal needs.

2. Dry Fertilizer Schedule

Be cautious with dry fertilizers. Apply them only during active growth in the hot season.

3. Temperature Is Key

If March is still cold, delay dry fertilizer use. However, if nighttime temperatures in February stay above 65F, you can start a dry fertilizer program using slow-release, granulated plant food.

4. What Fertilizers to Use and How

Check out our Sunshine Boosters selection for different types of plants and choose the right type for your needs. These can be applied as often as with every watering:

For Rapid Growth
Sunshine Robusta - Rapid Growth Booster: general fertilizer for both foliage plants and small starters that need an extra boost.

For Flowers
Sunshine Megaflor - Bloom Booster: boosts flowers on established plants; and Sunshine Pikake - Fragrant Plant Booster: best for fragrant flowers.

For Fruit Trees
Sunshine C-Cibus - Crop Booster: contains all necessary elements for fruit trees and their production. Sunshine Mango Tango - specifically formulated for Mango and Avocado trees, and Sunshine Citron - ideal for citrus trees.

For Tender Perennials
Sunshine Orchidasm - Orchid Total Feed and Sunshine Ananas - Pineapple and Bromeliad Booster: mild formulas for these tender perennials.

5. Microelement Supplements Are a Must

Besides macronutrients, plants need additional microelements, just like humans need vitamins. Be sure to apply these supplements along with your regular plant food:

For Green Leaves and Health
Sunshine SuperFood - Complex Microelement Supplement: a must for healthy plants. Apply once a month.

For Stress Relief
Sunshine-Epi - Brassinosteroid Plant Hormone: essential for plants recovering from stress (shipping, transplanting, drought, insect damage, cold stress, etc.). Apply as needed.

For Sweeter, Bigger Fruit
Sunshine Honey - Fruit Sugar Booster: application on fruit trees will make fruit bigger and sweeter by directing sugars to the fruit from other plant parts, and helps to prevent bud drop. Apply 4 times a year: at bud setting, flowering, fruit setting, and after harvesting.

For Better Resistance
Sunshine Power Si - Silicon Protector - enhances resistance to insects, diseases, drought, and frost, while boosting growth. Apply once a month, along with Sunshine SuperFood.

Need Help? Our Plant Experts Are Ready to Assist!

Microelements  and  supplements  for 
 plants