Cold protection of tropical container plants

Q: I am long time customer of yours, I live in San Diego California and while the summer and Fall temperatures are warm to mild, the winter temperatures dip to a point where some tropicals die off. We are experimenting with different variations of way to heat and insulate the pots we have the tropicals planted in as a way to keep them alive during the colder winter months. I was wondering if you knew of the ideal soil temperature for these tropical in order to look their best year round. All of the heaters we have installed have thermostats and temperature adjustments so we can now keep the soil anywhere between a range of between 65-75 degrees. Any advise you can provide would be greatly appreciated.

A: This is a very interesting concept you are working with. Indeed, keeping pots/roots warm, may help a lot! We've been experimenting with cold protection for a long time - for the above-ground plant parts. For sure keeping roots protected (even with a thick layer of mulch) will benefit tropical plants during winter. In case with container plants, this may help dramatically.
The guideline is, tropical plants slow down or stop their metabolism at 65F. As long as you can keep soil above that temperature - this should work great. Of course, the higher the better.
Optimum temperature for growing tropical plants in general - 70-85F. Above 90F, metabolism stops too, unless it's a heat tolerant, desert plant.

Greenhouse in Virginia
Plumeria cold protection
Ghost Cold Protection
Seven rules of cold protection for tropicals
About Cold Protection
Cold protection - winter action for your plant collection
Tropical Treasures articles on zone pushing.

Healthy Plants: Q&A from Mr Booster

How not to kill gardenias?

Q: I have tried to grow gardenia in pots for years and never keep them alive. When i look on camellia websites they say fertilize potted plants twice a year. I'm confused as I tend to kill them with kindness haha. Also, if our tap water has high cal/mag and that stops the gardenia getting other nutrients why would I make up the feed with tap water? So confusing and online is mixed messages...

A: Gardenias are not the easiest plants to grow, however, they are easier in pots than in the ground: they prefer acidic soils, and in many areas soils are alkaline. The most important factor is balanced and sufficient nutrients. In the ground, plants have no limits to reach out to different elements by spreading their root system. In a pot, once all the good stuff is consumed, plants start suffering nutrient deficiency. This is why a balanced feeding program is important.

Generally speaking, Cal/Mag in tap water cannot be bad, because they are essential elements, good for plants (in proper amounts). However, just Cal/Mag is not enough. This is why you need a balanced liquid fertilizer for plants that prefer acidic soil. Excessive Cal/Mag alone can create nutrient lock up, especially if they are chelated with EDTA like in dry fertilizers, which are not fully accessible for plants.
We recommend natural, Amino-Acid based fertilizers that are completely consumed by a plant and are safe to use with EVERY watering, even in Winter. They are scientifically formulated and cover all plant needs. For your gardenias, you should use SUNSHINE Pikake - Fragrant Flower Booster.
Another important factor is proper watering. Gardenias like regular water but don't like wet feet = well drained potting mix is a must, similar to Abundance professional growing mix.

Healthy Plants: Q&A from Mr Booster

Feeding Indoor Plants

Q: I am moving all my potted plants indoors as weather is cooling down. I still have Sunshine Boosters that I got from you in Summer. Do I need to continue fertilizing and how often, or should I wait until Spring?

A: Indoor plants add a vibrant warmth to your home, and can even improve the air quality. But most importantly, indoor plants give you access to year-round gardening. While majority of house plants are easy to maintain, they still require proper care to thrive.
Too many gardeners overlook the importance of fertilizing plants indoors. However, proper feeding is essential to grow healthy, vibrant plants. With outdoor plants nature sends rain and a plant will send new roots to find food, an indoor plant is limited to only what you will give it. That is why it is essential to feed your plants a healthy nutritious meal even indoors.
Many granular and slow-releasing fertilizers will recommend that you only feed your plants occasionally, but this is not the healthiest for plants, since they need to "snack" every day to satisfy their daily nutrient needs. When you feed a plant a large meal rarely, it cannot absorb the nutrients effectively, leftovers creating build up in soil (it's called "locked up nutrients") and that is why we specifically designed our fertilizers to be a light, daily nutritious meal for your plants - Sunshine Home for houseplants...

The truth about Sensational Monstera Thai Constellation

"Nothing's making sense anymore. It's gotten out of control"

Painting above: "Thai Constellation Monstera deliciosa" with acrylic paint on textured background by Audrey Ehlinger - participant of the 2020 Tropical Plant Art Contest

Variegated Monstera... Now that this Sensational plant deserves even its own works of art, it is time to admit: this beauty is probably one of the most surprising phenomena in the history of rare plant industry.

Many plant collectors noticed the craziness around this unusual variegated cultivar of Monstera deliciosa - Thai Constellatio. Top Tropicals was the first plant nursery that originally introduced this variety into the US tropical plant market a few years ago. Since then, popularity of this plant went above and beyond any expectations. Everybody wants this plant! Yet it is nearly impossible to propagate, with the only somewhat successful method as Tissue Culture. Besides, in order to create a viable batch, one must use cells from the stem only. Considering this plant grows about 2 inches a year (in favorable conditions), this leaves us with very limited propagation material... Who can sacrifice their unique mature plant for a knife of a propagator? Let us know if you have any extra you can share ;)

No wonder very quickly Thai Constellation had become a commodity plant, or even better - an asset compared by some people to a real estate bubble... Some collectors sell cuttings for $2,000 each. People pay up to $250 per leaf of this plant... Crazy? Maybe. But being rare plant collectors, we all know the feeling! Check out this article:

It's Better Than The Stock Market: A Massive Bubble Is Forming In The Rare Plant Market...

Thai Constellation available for sale:

The good news is - we have a few plants. They are in 4" pots. Small, but well-established. The price is not cheap. It is what it is - this is what it costs us to obtain these plants from Thailand. This is the last batch for a long while, no more available even at this price, since the growers can't find enough propagation material to satisfy the market. Next batch expected from tissue culture is probably 2022. We have over 400 customers on wish list for this plant.If you really NEED IT, order right now!

3-years old Monstera Thai Constelation from Top Tropicals personal collection

Healthy Plants. Q&A from Mr Booster: How to get Ylang Ylang to flowering

Q: I am writing in reference to my Ylang ylang tree. I purchased this from top tropicals a few years ago and although the plant is doing well, I don't see any flowers yet. Can you tell me when it will flower? Do I need to do something special for it to flower?

A: Cananga odorata, Ylany Ylang tree, takes a few years until it starts flowering, hopefully it will bloom for you any time soon.
However, keep in mind that it may be a bit challenging for a potted plant. In natural conditions, this is a large tree that requires lots of room not only for the tree itself, but also for the root system. It is still possible to get Cananga odorata to bloom in container, considering the plant has all necessary nutrients for flowering. Here is the trick.

When grown in the ground, root system can reach out to all necessary elements in surrounding soil (considering soils are not too poor on necessary elements). In a pot, a supply of nutrients can be exhausted very quickly, so a quality fertilizer program is very important. Fertilizer must include all necessary nutrients in easy accessible (soluble) form, and a plant must have their constant supply for proper development.

SOLUTION:
prescribe Ylang Ylang tree the following combination of plant food:

- SUNSHINE Pikake - Fragrant Flower Booster
It will provide well-balanced amounts of high absorption Phosphorus (P) and Nitrogen (N), as well as Potassium (K) - to provide enough flowering energy to the tree, plus a combination of all necessary micro-elements. It is safe to apply this fertilizer as frequent as with every watering, including winter time.

- SUNSHINE-Honey - sugar booster This supplement has a high content of elements Mo and B - once the tree starts getting them on regular basis (a few times a year, according to the label), it will trigger flower production.

You may also consider getting dwarf varieties of Ylang Ylang that starts flowering in container right away:
Cananga fruticosa - Dwarf Ylang-Ylang Currently these high demand plants are sold out, but new plants are establishing and will be ready for sale within couple months. You may add your email to wishlist ("Notify me when available") to get notification as soon as we have it back in stock.
Ylang Ylang vines also start flowering within a year.

The Best Pineapples

Q: What varieties of the Pineapple are the best for planting in Florida? When do they fruit? I have a small yard, with a room for one or two, but can I keep more in pots? I am excited to grow my own pineapples!

A: Pineapple is truly the King of fruits! One of the most delicious fruits in the world. They start flowering from January to March in Florida and yes, they happily grow in the ground as well as in pots. Heaviest fruiting is in Summer (May to September), and some staggered throughout the year.
Be careful with watering, keep in mind that like any bromeliad, Pineapple needs very little water and needs the soil to get dry between waterings. Use only acidic soil and acidic plant food.
Make sure to feed these plants on regular basis, especially if grown in pots. Pineapples are heavy feeders but are also very sensitive like all bromeliads, so be careful with traditional fertilizers, do not exceed recommended dosage. It is safe to use liquid amino-acod-based Sunshine Boosters Ananas fertilizer year round.

The mot popular pineapple varieties for home growers are:
Elite Gold
Royal Hawaiian - Royale
Sugar Loaf

Healthy Plants. Q&A from Mr Booster: Fertilizing Mango trees in Winter

Q: I'm living in Maryland growing zone 7A and would like some info on when to fertilize my potted mango trees. I ordered your Sunshine Mango Tango 2-2-4. All your mango trees are in pots.

A: You can start using this fertilizer right away, any time of the year, and every time you water your plants.
Sunshine Mango Tango, as well as other Sunshine boosters, is an amino-acid based liquid fertilizer that is scientifically developed for daily plant needs in all necessary nutrients. This means, you may use this fertilizer with every watering, including winter period.
Traditional fertilizers (both granulated and soluble, EDTA-chelated) can only be used during hot months while plants grow actively, and must be limited or not used at all during cooler months, to avoid nutrient lock up in soil (which basically means "building up unused elements"). With Liquid Sunshine Boosters, it is safe to add them every time you water your tree.
During cooler weather and when plant metabolism slows down, a tree will consume less water (as well as food), and you will automatically reduce watering, to keep over-wintering plants on a dry side. This means, less fertilizer too. This allows you to control elements intake naturally, like you control water amount just as much as the plant needs.

Plant of the Month: Hibiscus El Capitolio

Stevie's Pick: what's in bloom?

Our exotic plant grower Steven Gowdy will spotlight the most interesting plants he discovers and recommends today while working in TopTropicals greenhouses.

OMG! These plants are awesome. The flowers are stunning, ruffled, brightly colored. These are very unique double flowers about 5" long, with ruffled petals, followed by a sort of a stamen, than more ruffled petals... Wow. These are the perfect plants - they can be grown in a container or in-ground, in full sun. They are drought and disease resistant, ever-blooming, can be pruned into a standard weeping tree, or pruned into a bush... It's a convenient, dream plant! Prune frequently, because it blooms on new wood.
Hibiscus El Capitolio grows best in zones 9 through 11. In colder climates leave it in a container outside in the summer months, but bring inside in the winter months.
Remember - ever-blooming! You prune and they will flower all year long. These are fabulous plants that will satisfy any first-time or experienced gardener: you just can't go wrong El Capitolio! They will have you growing happiness... That's true.

Stevie with Kristi and Jamie celebrating his Happy Birthday. Check out Stevie's painting "TopTropicals Theme" at the beginning of this newsletter!

Healthy Plants: Q&A from Mr Booster

How to keep bugs away naturally?

Q: I started moving my tropical plant collection indoors as it's getting colder... And all of a sudden, I noticed bugs on leaves! I know for sure all my plants were bug-free when I kept the pots outside in my lanai. What happened? And how can I keep them clean and healthy without using any harsh chemicals? I have many edibles and herbs that I use in my cooking and prefer to stay away from insecticides. Any suggestions?

A: It is very common when healthy looking plants, once moved indoors for the winter, get insect infestations. The main reason is change of environment that puts a plant into stress and makes it susceptible to parasites and diseases. Just think about what a plant is missing, a whole combination of necessary conditions that provided a good life:
- Bring light -> light level reduced, so beneficial UV spectrum is gone
- Air circulation -> less wind = more bugs thriving
- Warm temperature -> from upper 80's in summer to 70's in your AC room
- Air humidity -> although humid air is believed to be causing some issues (for example fungus), however, reducing humidity overall puts a plant into stress and makes it more vulnerable.

Many gardener prefer to avoid chemicals, especially when it comes to treating edible plants and indoor collections. The solution to your problems is - Organic Solution!

SUNSHINE NoBug - Natural Plant Protector.
Shampoo for Plants - for both indoors and garden

SUNSHINE NoBug - is a natural solution to keep your plants healthy and bug-free without harsh chemicals. It is great for organic gardening and edibles, eco-safe and non-toxic for humans and pets. It kills, repels and prevents: spider-mites, mealybugs, whiteflies, aphids and many more. No wait time required - spray and play! And it smells like jasmine, forget stinky insecticides!
How does it work? Just look at these ingredients: Kosher Glycerine, Organic Coconut Oil, Organic Palm Oil, Oat Protein, Organic Soap, Horticultural Oil, Jasmine Oil, Water. Yum! But bugs hate it - they suffocate in it! This is why your plants will have NO BUGS with NoBug, that's it!

Directions are simple:

- Mix 100 ml (3-4 oz) with 1 qt (32 oz) of water, or 500 ml (16 oz) in 1 gal of water - for larger applications
- Spray foliage to drip point, including underneath leaves.
- Repeat the treatment in 7 days.
- As a preventive care, spray leaves once a month to keep insects away.
- You may use a paper towel saturated with this solution to wipe the leaves and remove residue from insects.
- Store at room temperature.

This poor Pepper plant was tossed into garbage can by a neighbor... it looked hopeless, infested with mealybugs. We saved it with NoBug ! In 2 days it perked up, and after 4 weeks its healthy and fruiting!

Trimming and treating Adeniums in winter

Q: My desert rose below dropped leaves after I replanted it in a bigger pot. I noticed that one of the branches that had been pruned is black at the tip. Please let me know if the section of the branch that turned black needs to be cut. I also wasn’t sure how often to water it since the leaves have all dropped. None of the other dessert roses have dropped their leaves but they are all younger plants. Any advice would be much appreciated.

A: Your plant looks healthy and vigorous overall. Dropping leaves after repotting, or shipping, especially at this time of the year, is normal in Adeniums. They are deciduous and stay leafless from Fall to Spring. Some individual specimens can go into dormancy sooner than others - all depends on conditions: temperature, light, exposure, etc. and individual plant's "clock".
The black spot on the cut branch may be a sign of a fungus as a result of excess water. You may carefully clean/rub it with a paper tower dipped in Hydrogen Peroxide (pharmacy grade). Then rinse with fresh water.
Keep the plant warm and in a dry spot. Once leaves are dropped, it doesn't need much water. Once a week watering is enough.