How to grow Cerbera and make it flower

Q: I purchased Cerbera manghas - Enchanted Incense a year ago. As you see from the photo, it's doing great however, no blooms. I fertilize properly and very often and use worm castings for micronutrients. Yes it's not "your" fertilizer, but my plumerias, that are also in pots they are over 5 feet tall and blooming like crazy. I don't see any inflows coming on the Cerbera at all and it is hot and humid here in North Carolina, so it's happy but no sign of blooming. What is your advice?

A: Top Tropicals first brought Cerbera manghas into the US plant market a few years ago, it was recommended to us by our friend, plant taxonomist John Mood who visited Thailand, and among other exotic plants noted this fragrant beauty. Since then we've been successfully growing this plant, it has become one of everybody's favorites.

Generally speaking, Cerbera culture is very similar to Plumerias. These plants are closely related. So if you know how to grow Plumeria, you sure will succeed with Cerbera. Hot and sunny location, well-drained mix, moderate water and bloom boom fertilizer will do the trick. However, we have noticed a few distinctive features that make this plant somewhat challenging at times.

1) Flowers

For past years, we've been studying what triggers its flowering. Sometimes these plants start flowering in 1 gal pot, 1 ft tall. Other times a large developed tree 5-6 ft tall, in 5-7 gal pot, grows beautiful foliage with no signs of flowers. Eventually all of them bloom, no matter how stubborn they are, it's just some individual plants start flowering sooner than others, all grown in the same conditions.
One of our plants in the ground, a well-branched tree, was covered with flowers for a few months, but only on the 3d year after planting. Before that, it only produced a few random blooms. Others bloomed in pots at very young age.
The following factors benefit to Cerbera flowering:
- full sun at least 10 hours a day
- hot temperatures above 85F
- regular water but not heavy rains
- regular fertilizer - Bloom Booster type
- very good drainage and drying out before waterings. If root ball stays moist, the plant may look healthy but won't set flower buds. Keeping on a dry side will encourage flowering. Very similar to Jasmines: they bloom like crazy in April while it's hot and dry in Florida, but once our summer rainy season starts, they reduce blooming.

We highly recommend using Sunshine Megaflor bloom booster or SUNSHINE Pikake in combination with micro-element supplements Sunshine Honey (B-Mo) and Sunshine Superfood (complex micro) that induce flowering. Dry and granulated fertilizers may not supply exactly what a plant needs: certain elements that trigger flowering may be missing. Sunshine Boosters formulas are scientifically balanced, they contain precise amounts of nutrients needed for setting flowers. Besides, excessive salts from regular dry fertilizers create nutrient lock up that may retard plant metabolism; with liquid amino-acid based Sunshine boosters, plants consume the whole menu of elements without building them up in the soil.

2) Fruit

Fruit of Cerbera are very pretty and cover the tree after profuse flowering. To inexperienced eye they may look very much like small mango or avocado fruit - so make sure kids or visitors don't try to eat them! Cerbera seeds are extremely poisonous.

3) Leaves

If you ever grew Passiflora or Milkweed, you know how leaves can be eaten by caterpillars overnight. This may happen to Cerbera too, as we discovered. In Florida environment this exotic plant doesn't have natural predators for protection from certain insect species that may feed on it. So watch out and if noticed first signs of leaves damage - its time for insect control.
Other than that, Cerbera foliage is usually beautiful and colorful, here in Florida it looks much healthier than that of Plumerias often affected with rusty residue during high humidity months.

Hope this helps. The Cerbera fragrance is enchanting, it is worth the efforts and waiting!

Date: 25 Jun 2021

Kristi's Loquat Tropical BBQ sauce

Loquat trees are famous for their abundant fruit production. Many customers who purchased this tree from us, soon end up with some serious crops and start asking if we have any special recipes for loquat fruit - because you can only eat so much out of hand! Here is our manager Kristi's favorite Loquat recipe - not only delicious and tropically-aromatic, but also good for you. Happy Tropical Meal!

Ingredients

2 lbs loquat fruit

cup soft brown sugar
cups malt vinegar
1 onion chopped
cloves garlic

1/2 tsp salt
1/2 tsp black pepper
1/4 tsp cayenne pepper
6 cloves whole or 1/2 tsp ground cloves

Instructions

Wash the fruit, cut them in half and remove stones. The loquats will lose about a third of their weight once stoned (3 lbs of whole fruit = 2 lbs of fruit, stones removed). Add loquats and all remaining ingredients to a large saucepan. Bring to a low boil, then simmer for about an hour, stirring occasionally. The liquid will have reduced quite a bit and the fruit will be collapsed and very soft. Allow to cool slightly, then liquidize the sauce in a blender or a food processor. Be careful, hot sauce really burns!
This delicious tropical sauce is great for any BBQ - with meats or fish. Enjoy!

Date: 4 Jun 2021

Tahitian Gardenia

Q: I am interested in your Tahitian Gardenia and I would love to try and grow this plant in a large container/fabric pot. The soil here where I live is terrible as it's hard rock, clay, and sand! So I'm not sure if amending the soil would help to plant in the ground? Can you tell me if this will do okay in a container or best in ground? I live here in Las Vegas, NV (zone 9a). Any information would be great to help me make a this decision, I love the selection of cool tropical plants you offer! Also my daughter does Tahitian/Polynesian dance and this would be a cool "topping on the cake" if she could have a live Tiare flower in her performances.

A: Tahitian Gardenia will be doing best if grown in container in your area. In its natural habitat, it grows full sun but also it enjoys mild weather conditions and high air humidity. All gardenias prefer acidic soils. In your area, if planted in the ground, it may be exposed to some harsh conditions: too high temperatures, too hot sun, dry air, and as you mentioned - heavy clay and sandy soil. You can enjoy this plant grown in container, which can be moved as needed away from too much sun during summer months. Use well-drained potting mix. Use plastic pot, do not use fabric or clay pots - soil will dry out too quickly.
Also remember to fertilize this plant on regular basis with a liquid fertilizer SUNSHINE Pikake - Fragrant Flower Booster.
Grow gardenia in full sun or semi-shade during the hottest months. You may spray it with pure water if the air too dry and hot. Enjoy your Tropical Beauty and good luck!

Date: 21 Apr 2021

Healthy Plants: Q&A from Mr Booster

Mango leaves and fertilizing

Q: I received a mango tree we ordered last week (I am in California) and am trying to make sure we take care of it properly. I noticed the corners of some leaves have began drying out. I wanted to see if there was anything else we should be doing or if it is something normal. Overall the tree looks good and the leaves have perked up, but I noticed the dry tips on a handful of leaves. Any help is appreciated! I have not fertilized in the pot yet or applied the mango sunshine booster.

A:Your mango tree looks pretty healthy, and these dry leaf tips may be caused by overall shipping stress. You have dry air in California, and temperatures may be getting up, this may cause additional drying effect. You may start fertilizing with a liquid fertilizer, it will help the plant to get stronger and grow faster - then heat and dry air won't be a problem as soon as the plant becomes better established and hopefully go into a bigger pot soon, or in the ground. Make sure to provide regular water if you have hot dry summers.

Date: 29 Mar 2021

Small flowering tree for community

Q: Hi, I live on the east coast near West Palm, but I see you ship your plants. My HOA allows for Yellow Tabebuia species and I'm looking for two or three smaller trees that can fit in my front yard in smaller spaces. Ideally looking for trees that would stay under 20' in height, but preferably even smaller. Can you tell me the average height and spread of the Dwarf Golden Tabebuia or Silver Trumpet trees?

A: The Yellow Tabebuia - Tabebuia caraiba is a very good choice for a small yard. It grows about 20 ft average size, 7-10 ft wide. Sometimes taller, but it is slow growing and it will take many-many years to grow to a bigger size. It is a spectacular tree when in bloom, however, keep in mind that it is not very wind resistant; although it is not difficult to secure it back being a small tree. Another Tabebuia which is even more compact tree, has stronger root system and is more wind resistant:
Tabebuia chrysotricha - Dwarf Golden Tabebuia
Also some other interesting choices:
Radermachera Kunming - Dwarf Tree Jasmine
Senna polyphylla - Bahamas Cassia, Desert Cassia
Cordia sebestena - Scarlet Geiger tree

See full list of compact small trees