Garden Blog - Top Tropicals

Date: 24 Oct 2016

Overwintering Adeniums outside of tropics

Q: We bought several adenium plants from you. We are moving to the Denver area of Colorado. How can we make sure the plants survive? Should we use a green house?

A: Adeniums are perfect container plants, and house plants. They can be easily grown outside of tropical climate. During winter, Adeniums drop leaves and go into dormancy which makes it easy to keep these plants in a dormant stage in a warm location of your house, or possibly even in well-lit spot of garage (with a window), with temperatures above 50-60F.
Here in South Florida, during time of cold, when chances of freeze are high, we move our own Adenium collection into lanai, with plastic sheet protection around lanai.

In colder climates, Adeniums can be kept indoors as house plants during winter. There are some requirements/tips for you:

  • Temperature. Move Adeniums indoors when temperature starts dropping below 45F.
  • SUNSHINE. Use SUNSHINE boosters to improve cold resistance of Adeniums, and essure healthy plant throughout winter. SUNSHINE-BC formula is specifically designed for plants with caudex, and bonsai.
  • Water. Reduce watering to minimum, especially when plants drop leaves - this means they went into dormancy. Once a week light watering is enough. Water very carefully during cooler months. When it is hot (85-100F), excessive water usually won't harm adeniums: it will be partially used by a plant, and partially will evaporate. Especially be careful with water when temperatures drop below 65F - then tropical plants simply stop growing process and go dormant. Once adeniums start losing leaves, this is a sign to reduce watering to once a week to once a month, and in very small quantity (couple tablespoons per pot).
  • Light. Bright light is not necessary, but do not keep them in dark either, even if all leaves dropped. Good light is necessary to maintain healthy stems and caudex. Keep in mind, the less light, the less watering too. Ideal spot is a windowsill, however if your space is limited and all windows occupied by other "leafy" plants, location close to window will be enough as long as watering is reduced, to avoid rot. We keep our big collection specimens on a roofed porch during winter, where level of light is very low. Last winter we haven't lost a single plant due to low light. They take shade pretty well considering minimum or no water. However bright light is always better - it creates healthier environment for a plant. We all know about space limitations for our large collections, especially in winter. So if you can afford a bright spot for adenium during winter - the plant will be lucky!
  • Soil. Use only well drained mix with much higher content of perlite than you would use for most tropical plants. For adeniums, we use mix with 30-40% of perlite in it, while regular mix has 10-15%. Adeniums like alkaline soil, unlike most of tropical plants (hard to say what else likes alkaline... Ficus for sure!). This means, regular mix with high content of peat moss may cause root rot. To increase alkalinity, you may add dolomite. Here in Florida where we have natural supply of shell rock handy, it is easy to add some shell to a potting mix (shell sand, rather than quartz sand). We always add a few large shells on top of a pots with a big specimen. Besides increasing soil pH (making it more alkaline), shells look very decorative.
  • Fertilizer. No fertilizer until Spring when plants start showing new growth and new leaves.
  • Move your Adeniums outside in Spring, when chances of freeze are zero. More sunlight and air circulation is beneficial for breaking the dormancy and providing plants with a quick growth start.

Date: 17 Sep 2025

Mulberry Care and Growing Tips

Mulberry  fruit  on  a  plate

Mulberries are tough, low-maintenance fruit trees that adapt to many conditions.

  • Climate: Hardy from USDA zone 5 to 10.
  • Soil: Grow well in almost any soil; prefer good drainage.
  • Watering: Regular watering during dry spells; drought tolerant once etablished.
  • Growth: 3–5 feet per year, producing fruit early.
  • Pruning: Annual pruning controls size and improves branching.
  • Pot culture: Dwarf types thrive in containers, staying 6–7 feet tall. Use a large pot, water consistently, and prune lightly. Use Abundance potting mix for best results.
  • Fertilizer: For reliable production, fertilizer regularly. Apply Sunshine C-Cibus liquid booster with every watering, or GreenMagic controlled release fertilizer every 5-6 months.

❓ Mulberry FAQ


How soon will a mulberry fruit?

One to two years, sometimes the very first season.

What climates are suitable?

USDA zones 5–10, from -20F winters to hot summers.

How tall do they get?

Standard trees 20–30 ft; dwarfs 6–10 ft in pots.

Do I need more than one tree?

No, they are self-pollinating.

What do they taste like?

Sweet and juicy, like a blend of blackberry and raspberry.

How long is the harvest?

Everbearing types ripen gradually from summer into fall.

Do birds eat them?

Yes, but trees are so productive there’s plenty to share.

Are they messy?

Dark-fruited varieties can stain; white mulberries do not.

Can I grow them in containers?

Yes, dwarf types (Dwarf Everbearing, Issai) fruit well in pots.

How long do they live?

Many live for decades; Illinois Everbearing can endure for generations.

What are the health benefits?

Mulberries are low-glycemic, support healthy blood sugar, improve heart health, and are rich in antioxidants.

Shop Mulberries

Date: 25 Feb 2024

Avocado pollinating and crops

Avocado  fruit

Photo above: Avocado Joey - very buttery fruit, cold hardy variety.

Q: I bought an anise leaf-scented avocado from you, and it is finally quite large and doing great. I live in California, the coldest temperatures we seem to get in some winters is around 25 to 28F, and it never lasts long. The tree might get a bit of frost nipping on the new growth, but it has done very well. It has flowered profusely for the last two years but hasn't set any fruit. What variety you might recommend to help with pollinating?

A: We are glad your avocado is doing great. Anise is one of our favorite varieties, with the wonderful smell of leaves and tasty fruit.

Cold hardiness and flower quality

It is true that cold damage may affect avocado production, especially in setting fruit. To improve the tree's cold hardiness, make sure to provide balanced plant food, especially during the season of active growth. For our avocado trees, we use Sunshine C-Cibus year-round.

If you prefer to use dry (granulated, slow-release) fertilizers, make sure they contain micronutrients, or apply Sunshine Superfood microelement complex once a month.

To improve flower quality (including the ability to set fruit), we recommend a special micronutrient supplement called Sunshine Honey. It contains Boron and Molybdenum - elements that are responsible for setting fruit and for developing fruit (meaning not dropping at the early stage of development).

Cross-pollination and crop

In general, every avocado tree is self-fertile, meaning it can produce some fruit with its own pollen and doesn't necessarily require a second tree for pollination. So even if you don't do anything, sooner or later your tree will set fruit. However, it is also true that the amount of fruit and crop reliability depends on pollination factors. One type of avocado classification is by flowering and pollination behavior - type A or B.

When both types of trees are grown in proximity to each other, their overlapping flowering patterns significantly enhance the chances of cross-pollination. This can lead to improved fruit set and higher yield, making it especially important for commercial production and, to a lesser extent, for home growers.

Therefore, it's advisable to plant different varieties of avocado in your garden - the more, the merrier! The greater the diversity of avocado trees with overlapping flowering periods, the better your crop is likely to be. If you're growing an avocado tree without other avocados nearby, it becomes helpful to have more than one tree with different flowering patterns (A and B) to increase yield in your garden.

Anise Avocado is type B. So to increase your crop, you may consider planting type A variety from the list: Bernecker, Black Prince, Catalina, Choquette, Day, Donnie, Fantastic, Florida Hass, Lila, Loretta, Lula, Mexicola, Mexicola Grande, Red Russell, Reed, Russell, Simmonds, Ulala , Waldin .

To learn more about avocado types, fruit characteristics, cold hardiness and much more, refer to our Avocado Variety Guide - a page with very convenient interactive chart allowing you to quickly sort types of avocado by requirements of your choice (just click on column header to sort data). You may also buy a Book or download a PDF.

PAvocado  Variety  Guide  Book

Avocado  trees  in  pots

Photo above: 15 gal Avocado trees for local pick up. Delivery and installation available!

Date: 2 Apr 2022

Cat of the month:
Frosya Yavorsky from Ukraine

Frosya  Ukrainian  Cat

Meet Frosya Yavorsky - an anti-war and anti-stress Cat of Alex and Lena Yavorsky. They live in Lviv, Ukraine and contribute their plant photos to Top Tropicals Catalog. Recently they sent us the beautiful Sunflower field photo that everyone can enjoy now at Top Tropicals home page. Frosya's main job today is psychological support of her parents during this cruel times. Top Tropicals recently sent to this family some proceeds of Kristi's Sunflowers sold at Sunday Event Sale. Frosya, please stay healthy and keep your parents calm and strong. You guys are in our thoughts, prayers, and hearts.

Our thoughts and prayers are with Ukraine

Ukrainian  Corn  and 
 Rye

Ukraine direct support:

To support Ukraine, please make your purchase of so-much-needed plant food today: Sunshine Boosters, developed by our Ukrainian Team.
All profits from Sunshine Boosters sales go to Ukraine.
Your help is needed TODAY.

Sunshine  Boosters

Sunshine  Boosters

Photo above: Fedor Shabliy with his family - Oksana and Vova - are about to start planting vegetables in their backyard. Fresh start once the freeze is over... Fedor, the author of the Sunshine Boosters formulas, looks into the future with optimism. Staying strong!

Date: 31 Oct 2023

How to establish Tabernaemontana
and get more fragrant blooms

abernaemontana  australis  flowers

Q: I purchased Tabernaemontana australis from you back in June of this year and it recovered just fine, but the new growth got some chlorosis.   Older leaves still look normal.   The flowers also look normal but lack fragrance.   Since I live up north, I have it in a heated greenhouse for the winter, with a grow light to compensate for the short days.   I have it in a 10 inch clay pot in a mix of equal parts standard indoor potting soil, peat moss, and perlite.   It gets fed with half strength 10-10-10 about once a month on average.  Is there some specific culture that you would recommend for this plant ? I really love it and want it to thrive.

A: Tabernaemontana is a plant that may take some time to establish itself, and leaf chlorosis often becomes a common issue when the root system is not well-established. This symptom is indicative of Iron deficiency, and possibly other micro-element deficiencies, such as Boron or Molybdenum, which become more apparent when the plant receives excessive water. This problem tends to intensify as temperatures drop, particularly when a combination of cool and wet conditions prevails. It's worth noting that your potting mix seems to be appropriate for this plant.

In light of these circumstances, we recommend the following steps:

1) Reduce watering during the cooler season, especially when daylight hours are shorter. Allow the top layer of the soil to dry before watering again.

2) Consider supplementing with microelements using a product like   Sunshine Superfood. You can apply this as a foliar spray and mix it with your watering can.

3) Maintain your regular fertilizing program throughout the winter months, but ensure that you use only liquid amino-acid fertilizer, such as   Sunshine Megaflor. Follow the instructions on the label for the correct dosage and apply it with each watering, even during the winter. Since you will be reducing amount of water, the amount of fertilizer also will be adjusted accordingly.
Important: do not use any dry fertilizers during winter months (Nov-March).

Regarding the fragrance of the flowers, they typically emit a mild, sweet scent, although it may not be as potent as that of gardenia or jasmine. The strongest aroma usually becomes more prominent during warm (but not excessively hot) and humid conditions, particularly in the morning hours. As the plant grows larger and healthier, the fragrance should become more intense because the flowers produce more essential oil when the plant is robust. You may also apply Sunshine Honey supplement to improve flower quality and fragrance strength.

abernaemontana  australis  bush