How to get Clerodendrum to bloom?

Q: My Clerodendrum thomsoniae is not blooming. Actually it is not doing much of anything except putting out weak growth and small leaves. I purchased this plant May 26. 2015. Over the winter it was in a heated sunroom, at night 60 degrees, where it received some direct sun from the skylights. I reduced the water to prevent excessive leggy growth. I don't see how this plant can take full sun or even part sun. Temps here in Raleigh NC are 80-85 degrees and 65-70 at night, at the moment. I figured I would gradually expose it to more direct sun after being in a sunroom but the leaves burn. I had this plant in San Jose many years ago where it did quite well, blooming with no special treatment. So thought I'd give it a try again. Any advice?

A: Clerodendrums are all time favorites, appreciated by both gardeners and house plant collectors, for their showy, fragrant flowers and very easy culture. When growing Bleeding Heart (Clerodendrum thomsoniae), a few things should be taken in consideration:

1. Temperature.Like most clerodendrums, this plant is semi-decidious outside of tropics and goes dormant in winter. It may lose some or all leaves if temperatures drop below 60-65F. It is not too cold sensitive, the plant can even take some light freeze. However when it is not hot and humid, it slows down metabolism. This means, water should be reduced during cooler months.
2. Light. This plant can grow in both sun and shade like most clerodendrums - this is the beauty of this genus. However like with all flowering plants, more sun promotes more bloom. In shade, it will grow beautiful dark green foliage (leaves will be bigger than in the sun) on the account of flowering; in full sun leaves turn lighter color and sometimes may even get unattractive "faded" look, but flowering will be profuse. Also remember that Arizona full sun is different than New York full sun. Here in Florida, Bleeding Heart can take some full sun, but if exposed to sun all day long, leaves often get sun burn.
3. Acclimation. Also called acclimatization - this is a process when a living organism adjusts to environment changes. Acclimation is always the case when growing plants indoors, even in a sun room. When Spring comes, and especially when we start taking outdoors those plants that have spent a few months indoors, light level increases dramatically, and this may cause leaf loss, and leaf burn. It is not necessarily a bad thing, it is just a mechanism of acclimation. Example: imagine yourself after living in a warm tropical climate, moving to a cold country. For a while your body will feel discomfort from "too much cold", while native residents may feel comfortable. We call it "My blood has thinned after living in Florida" - and this is a physiological fact. And vice versa, if you are a Northerner, moving to hot climate may be a challenge; it will take a while until you get used to hot and humid tropical summers. Same thing with plants: during cooler and darker period, their body (leaves and stems) becomes "winter type", with some serious chemical restructuring. Immediate environment change, like bright light and high temperature, causes a shock to those "winter cells", and as a defense mechanism, the plant gets rid of those useless "winter" leaves, replacing them with new "summer" leaves with completely new chemistry and metabolism.

From what you described, you know your plants, and you know what you are doing. You did everything right by reducing watering in winter and gradually moving the plant into brighter light. You still may see some stress, and this is normal. If you patiently keep changing environment slowly, eventually your plant will generate new healthy "summer" growth, it will also improve more vigorous root grown which will help the plant to establish better and to be stronger. You will see larger, thicker leaves, and definitely some flowers.

Desert rose winter care

Q: I purchased several pockets of desert rose seeds last year . I now have 45 very healthy seedlings some of them in bud. Almost all of my seeds grew but I lost most of them when I rook them in during winter. I did not water them for a month , kept them in their pots and set them by the window. they either dried up and died or rotted and died. I noticed when you send me grafted specimens that you bareroot them. Is this a better way to keep them inside in winter, bareroot? I hate to lose these plants come winter time. Pls advise me. I live in Houston, Tx. where we get temps below 40 degrees and sometime a day or more of freezing temps.

A: Thank you for your question. Rot is pretty common problem with Desert Roses. We monitor our Adeniums closely and have a special set up of watering environment and schedule, in dedicated greenhouses just for them. Nevertheless - every now and then we see a rotten caudex and can't help it to say "oops! over-watered!" These plants are very sensitive to environment changes, especially when it comes to a combination of water and temperature. These are a few tips that should help you to reduce risk of plant loss to a minimum:

1) 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%.

2) 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.

3) 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).

4) We do not bareroot adeniums for winter storage. They are not bulbs. Barerooting of this plant is recommended only during shipping. Adeniums can stay without soil for up to a week without hardly any stress, sometimes even longer.

5) 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!

Adenium Summer Sale: 20% off plants and seeds!

Memorial day and week-after discounts

Memorial day discounts. . Our Memorial weekend special offers:

1. Remember to use discount coupons
2. off for orders over $100 (excluding S&H): MEMORIAL15
3. off for orders over $200 (excluding S&H): MEMORIAL20

codes are valid till end of day Monday, May 30, 2016.

2) 50% off! - on many interesting rare plants. Check out offers below. Offer ends at the end of day Monday, May 30, 2016.

3) 75% off! - extended discount for local walk-in customers only, on those items listed below. Just print out and bring this email with you, and enjoy 75% off on these plants, what a deal! While supply lasts. Offer ends by end of the week: Saturday June 4.
NEW! Attention Garden Center visitors: for your shopping convenience in our Nursery, print this locations map with QR code to find plant and check price using your smartphone while shopping.

See all offers and sales. Happy Memorial Weekend!

Gemini - 5/21-6/20. Ruled by the mutable, changeable planet Mercury (also patron of the art of medicine), Gemini is an AIR sign. Plants ruled by Mercury tend to have ferny or highly-divided leaves or stems (like the bronchi of lungs), hairy or fuzzy leaves (related to the cilia in the lungs), or subtle odors.

Gemini rules the lungs, shoulders, arms, and hands. Its plants help to strengthen the lungs and respiratory system, relax the nervous system, strengthen ears and hearing, the tongue and speaking, the vocal cords, lungs and thyroid, as well as the shoulders, arms, and hands. Gemini has so much going on mentally that they may need a little help to digest all the information they're constantly absorbing. Herbs that have clean, pure flavor not only help physical digestion, but assist spiritual and mental intake as well.

Gemini Zodiac lucky plants: Ferns, Blechnum, Tree ferns and Cyatheas, Fern Tree, Aralias, Jackfruit and Breadfruit, Paulownia, Anthurium, Philodendron, Philadelphus, Clerodendrums, Anise, Lavender, Myrtle, Nut trees, Macadamia, Ficus, Piggyback plant - Tolmiea menziesii, Aloe vera, Fig, Honeysuckle, Azalea, Mint Tree Satureja, Vitex, Ironwood, Mulberry, Osmoxylon, Acalypha, Allamanda, Aphelandra, Iboza, Ruda, Kiwi, Caesalpinia, Cyphomandra, Monstera, Kalanchoe, Magnolia, Oregano, Ocimum, Naranjilla, Zamia, Delionix, Acacias, Calliandra, Patchoili, Palms, Geranium, Grevillea, Eucalyptus.

For other signs information, see full Plant Horoscope.

Q: I live in California and about a month ago ordered several plants from you, including fruit trees (Carambola, Mango, Avocado) and flowering trees (Xanthostemon, Adeniums, Champaca, Ylang Ylang). They were all doing well until I tried to move them into full sun, when they got leaf burn immediately. Ylang Ylang was doing great in a shade, but I repotted it from 1 gal into 3 gal and it is drooping leaves now. It has been very hot (over 100F) and dry (humidity is less than 25%). Any suggestions?

A: Hot summer can be pretty challenging time for establishing new plants. These are some guidelines to make your summer gardening more successful and rewarding.

1. You can order plants at any time, but keep your eye on your local weather forecast and try to chose cooler periods to schedule your plant shipments. Here at TopTropcals we monitor weather at destinations, and we can also delay shipment per your request until more favorable conditions.
2. During hot Summer months, many plants are still OK to ship, and to be planted, many species are heat tolerant. It's usually safe to ship most succulents, including Desert roses and Euphorbias. Some fruit trees are pretty easy too, like Loquats, Mango, Eugenias. Many flowering trees can take heat: Acacias, Clusias, Jatropha, Sausage Tree, Plumerias and many others. Check our full list of plants suitable for hot and dry conditions. Most jasmines, including Jasmine Sambac and Trachelospermum make also a safe choice for hot weather planting.
3. Use shade cloth or simply white sheets to protect young plants and new plantings from hot sun.
4. When establishing mail ordered plants during hot weather, keep them in shade for longer period of time than average recommended 1-2 weeks. Give them a chance to establish really well. In areas with low air humidity, try to create a simple mist system. It can be purchased in your local Home Depot for only $20 and set up takes only 10 minutes! It makes a big difference and can help you save many plants from hot weather stress.
5. Although it may seem that during hot weather plants need more water due to high evaporation, be careful with watering, and check soil with your finger before watering - don't water if it is still wet. Combination of "hot and wet" can be as harmful for the root system as "cold and wet" during winter. Protect root systems from overheating: covering black pots with white cloth will work. Remember when temperature is above 90F, most of plants slow down their metabolism, which means roots slow down or even stop pumping water and become more vulnerable to overwatering. For the same reason, do not hurry to step up into bigger container if roots haven't filled yet the existing pot.

Top Tropicals Video Presents: Doctor Noni

Top Tropicals Video Channel. We are happy to introduce to our customers our new project - Top Tropicals Video. Gardeners have been enjoying our Tropical Treasures Magazine with its unique stories on fascinating plants, their history, plant clinic and Do-It-Yourself projects. Now you can have more fun to visit actual tropical paradise by watching our short movies in your convenience - from your computer, or simply on your smart phone. In our future video tours, we will be showing both popular and rare exciting plants and how to grow them. We will be sharing little secrets of how to make these plants happy, so they will make your own life brighter and happier. Stay updated with TopTropicals Videos by subscribing to our YouTube channel at YouTube/TopTropicals and get our latest video news of what's fruiting and blooming! Our today's video story -

Doctor Noni - life sustaining plant. Many people have heard about the mysterious and miraculous Noni fruit, yet few know exactly what it is. This odd-looking fruit grows on a beautiful tropical tree from Polynesia - Morinda citrifolia, that actually belongs to a Coffee family! The Noni fruit, also called Cheese Fruit for its special odor, has unique health benefits. It is said that this plant food is to be used when we are feeling really ill or really old... Do you want to know how to have your own FREE fresh Noni juice year round? Check out this Movie: Doctor Noni - life sustaining plant...

Taurus - 4/20-5/20. Taurus is an EARTH sign ruled by the planet Venus. Venus is the planet that represents desire and beauty, regarded as the female embodiment of sexual love and human appetite, so Taurus plants often have gorgeous flowers and enticing fragrances and, occasionally, red fruit. It rules the internal sexual organs, the nose and sense of smell.

Because Taurus rules the throat and ears, the best plants for the Bull are often soothing to the throat, or may calm the digestive system after overindulging in the finest foods. Taurus is related to those things we want and value. It harmonizes various body systems, and influences the complexion and facial appearance. Also under Venus’s dominion are the abdomen, kidney, thymus, and breasts. Venus-governed herbs are soothing and help to regulate the body’s metabolism through the endocrine system. Taurus herbs are traditionally used to attract money and resources. Earthy Taurus sign is all about building a stable and comfortable foundation and can help you generate greater abundance and prosperity in your life.

Taurus Zodiac lucky plants - Aglaia, Cananga odorata (Ylang-Ylang), Artabotrys (Climbing Ylang-Ylang), Cerbera, Night blooming jasmine, Chonemorpha, Erblichia, Euodia, Hiptage, Iboza (Musk Bush), Anise, Lavender, Lonchocarpus Lilac Tree, Nutmeg, Parijat, Camphor Basil, Osmanthus, Funeral tree, Quisqualis, Satureja (Kama Sutra Mint Tree), Viburnum, Carissa, Murraya, Curry Leaf, Bunchosia (Peanut butter fruit), Eucalyptus, Lily, Vitex agnus castus (Blue Chaste Tree), Alstonia scholaris (Sapthaparni), Papaya, Maple, Jasmine, Guaiacum, Camellia, Ephedra, Fuchsia, Geranium, Spider lily, Gardenia, Magnolia, Plumeria, Paeonia, Verbena, Clerodendrums, Apple, Pear, Apricot, Peach, Plantain, Olive, Grape, Pomegranate, Mango, Neem Tree, Cherry, Cypresses, all Berries, Raspberry, Asparagus, Mint, Clove, Roses, Stagshorn fern, Catnip.

For other signs information, see full Plant Horoscope.

April 22 Earth Day discount - 15% off fragrant plants! Earth Day is more than just a single day �" April 22, 2016. It’s bigger than attending a rally and taking a stand. Plant one tree at a time to make our Planet better! This Earth Day and beyond, let’s make big stuff happen. - See more at: www.earthday.org

Check out our Fragrant Plants for 15% off! 1-day deal only!

5 secrets of propagation

How to propagate rare plants? It is exciting and fascinating process - to be a Creator of a rare plant collection. Sometimes when you have a rare plant, you baby it and wish you could have at least two of the kind, just in case you lose one to weather conditions or an accident... If you lose one, it hurts! Plant collectors know the feeling - it is always a good idea to propagate a few more of the rare kind. Here at Top Tropicals we know that feeling too, and we want you to keep your baby plants alive and thriving, multiply them, share with others, and make our planet better - one plant at a time! Know your different plants, and different ways of their propagation. Ready for the secrets revealed?

1. Seeds. The most popular way and in most cases the most reliable. Also, a seedling has a strong, vertical root system (cuttings or air layers have shallow roots). However growing from seed is the only sexual method of propagation (vs other methods - asexual, or cloning), which means, some varieties don't come true from seed. Similar to a baby born from two parents, blonde mother and brunette father, can have either light or dark hair... or even red, genetically provided by the great-grand father! The most important factors of success when growing from seed are - well-drained germination mix (check out our Seed Germination Mix #3), and a combination of perfect temperature (high temperature 80-90F induces germination, but some species like it cooler!) and mix moisture level (can't stay soggy).

2. Cuttings. In most cases, works great as long as you know the secret for this method: clean (sterile) soil mix (check out our Propagation Mix #2), warm temperatures and very high air humidity (not moist soil, but humid air!). Mist house works well (see picture) with periodically controlled foggers (5-20 sec of fog every 5 to 20 min during light time - depending on species, and temperature), but simple clear plastic bag over a pot or tray works as well! Large leaves should be trimmed in half, or more, to eliminate extra evaporation, and soil should be only slightly moist, not soggy. Remember to use rooting hormone that not only improves rooting but keeps away fungus problems. You are welcomed to visit mist house in our facility, we will be happy to share experience.

3. Air Layers. From our experience, key to success with this method is patience. Most air layers take a few months to set root. Keep sphagnum moss moist, and create air layers only during active growth season - Sprint through Summer. Use rooting hormone.

4. Grafting. This method requires the most skills and experience but is not as difficult as it sounds. Plants can be grafted withing the same genus (e.g. one Gardenia sp. on another Gardenia sp.). There are many grafting manuals on internet. Try once, and you will get addicted to grafting! In many cases it is the most effective method. Especially when seeds not available and cuttings don't work with the species, while grafting works much faster than air-layering. The main secret in grafting is using the right type of graft, which comes with experience. Another important thing is keeping grafting parts and tools clean/sterile. Treat/clean surfaces with anti-fungicides horticultural soap (Example: Abound anti-fungal, Green Shield soap) and use rooting hormone.

5. Root divisions. All gardeners know that some plants are best to propagate by rhizome/root divisions, like Gingers, Heliconias, or Iris. And not everyone knows that some fruiting and flowering trees don't mind to reproduce by root divisions. For example, Jujube - Ziziphus jujuba, and Strawberry tree - Muntingia calabura, readily produce root suckers. Watch out for them and don't let them go to waist when spraying weeds. All time favorites, fragrant Clerodendrums also like this easy method of reproduction, especially C. bungei, C. philippinum, and many others.

Check out our Growing supplies section for professional soil mixes and drainage components that are so important in your propagation success. At Top Tropicals, we often use Coconut Coir for propagation. Good luck in your growing, and remember - if you propagated a few extra collectibles, Top Tropicals may trade or buy from you!

Seeds germination in summer

Q: What is the best way to germinate seeds in summer? Should I keep trays indoors or put them outside?

A: Summer is the best growing season for plants, and for their propagation. Seed germination process of tropical plants usually benefits from warm, and even hot temperatures, so keeping pots with seeds outside in full or partial sun can be the best way. However some seeds may be more sensitive than others, or require slightly cooler or higher temperature for germination. These are a few tips that may help:

- For seed germination, use only well drained mixes, containing either peat moss or coconut fiber to retain moisture. Some succulents may require adding sand to the germination mix. You may also try our Professional Formula Seed Germination Mix.

- Large tropical seeds, like palms, or seeds of Fabaceae (Bean) family, can be grown in full sun. Their germination will benefit from higher temperatures (up to 90-95F). Make sure to keep soil moist. Cover them well, with 3/4 to 1 inch of soil.

- Fruit seeds (large size) should be germinated either in individual cells or small pots (3-4" diameter).

- Small to medium size seeds can be grown in so-called community pots. Seedlings can be separated after they establish their first roots.

- Tiny seeds should be planted closer to the surface, covered with only 1/4-1/8 inch of soil; some seeds require bright light for germination, so full sun will be a plus. Some small seeds like Ficus for example, prefer to be broadcasted on the surface, uncovered. Put containers with such seeds in bright shade, as you don't want the surface of the soil to dry out.

- Once your seeds sprouted, move them in filtered light - bright to medium shade depending on tenderness of the species. (Gingers prefer shade, while succulent sprouts can stay in brighter light). Regardless of water/sun needs of the species, all young sprouts and first leaves are sensitive to hot sun and may get burned or even killed. Once a baby plant has a few leaves and well-branched root system, you may start moving trays into a brighter light.

- Do not overwater young seedlings, keep soil slightly moist but not soggy.

See full list of available seeds.

Hot novelty plant for hot Arizona

Q: What plants would you recommend for very hot and dry spot in front of my house that gets full sun all day long? I live in AZ, we recently had a couple good rains but this is going to be it for a long time. It gets so hot during the day that every plant I tried didn't make it. We have a few nice orange trees growing well but I would like to plant something compact, colorful and hopefully fragrant if there is such plant.

A: There is a perfect small size plant for you that is extremely fragrant and yet will be thriving in these conditions. It is the famous Jasmine sambac. It will appreciate dry air of Arizona and will bloom profusely for you in full sun or in partial shade. It doesn't mind heat at all.

For colorful accents, a proven winner is Crown of Thorns - Euphorbia millii. New giant size flower varieties were recently selected in Thailand, and we just received a great selection, look at the colors! These plants don't mind hot sunny location at all. The more sun, the better the bloom! Small plants need regular watering until establish, then once they start developing, they will require less water.

Giant Euphorbia flowers from Thailand are 4-5 times bigger than regular flower euphorbia. Diameter of the flower is around 2". Compare giant flower to normal size - picture on the right.

See full list of plants for hot and dry spots.