How to get Strophanthus tree to bloom?

Q: I purchased from you three of these plants - Strophanthus bovinii and I wonder if you could help me. The plants are out of control growing large limbs to the sides and I would like it to grow more upright. Is this possible? Second, it does not flower. What type of fertilizer should I use and how often? How about the watering schedule? I have them in an eastern exposure but possibly they are not getting enough sun? Right in front of them, there is a large tree outside the curb of my house. What should I do about that?

A: Strophanthus bovinii - Wood shaving flower, is quite a unique plant that is very rare in cultivation, this is why very little information is available on its cultivation due to limited experience among gardeners. We have had this plant in our garden for over 12 years and this is what we can advise.
In the nature (Madagascar) it supposedly grows into a large tree, however, from our experience, it tends to be rather bushy, umbrella-like large shrub. Yes, you can train it into a tree by trimming branches growing side-wise, and by removing lower branches. The best time for pruning is early spring when the tree starts new growth and re-leafs (it is semi-deciduous). As far as flowering, the plant is very particular about blooming season, with profuse flowering in Summer (here in SW Florida), however it may produce more flowers sporadically throughout the year.
It thrives in full sun but will tolerate bright filtered light. If a large tree is shading it too much, try to trim some limbs of that large tree to allow more light. Water needs of Strophanthus bovinii are very moderate, so you can rely on your sprinkler system or water once a week for established plants.
You should use 2 types of fertilizers - slow release (once a month) and water-soluble bloom booster (frequent applications are safe):
Pink N Good Daily Plant Food - Flower Booster
Tropical Allure - Smart-Release Booster

Chosing a good avocado tree

Q: I'm in coastal Broward County. I'm putting together an order on your web site, and one thing that I would like is an avocado tree. I'd like to have something as close to true "Hass" as possible. Which cultivar does well here in SE Florida, and is most like Hass in texture, creaminess, and flavor? I'm not a big fan of the yellow watery Florida avocados.

A: Mexican type of Avocado have dark skin and buttery texture, while Florida green fruit types (West Indian type, with smooth skin), have lots of delicious melting pulp, so it is a matter of preference.
In coastal Broward county you can grow a wide range of varieties since your climate is very mild, so you don't have select cold-hardy varieties like Winter Mexican, Brazos Belle or Joey, etc. Yet there are many interesting varieties that rare and much more exclusive than Hass, with the same, or even better, quality buttery fruit.

One of the most popular varieties - Brogdon, with red-purple colored pear-shaped fruit, very thin skin, and yellow buttery flesh. It is also very cold hardy.

Very interesting exotic avocado is Kampong - Sushi Avocado - see photo above. The flavor of this fruit very nice, oily, creamy, nutty, reminds of almonds. At the same time, it has solid consistency and if you cut a square it remains a shape of the square. It is the best Sushi Avocado! It tastes great as an appetizer when cut in squares with some shrimp cocktail sauce.

Three collectible varieties:
Anise - leaves that smell like Anise, very rare, the fruit is of excellent quality, creamy and buttery.
Bacon - a large Mexican variety with dark-skinned medium-sized fruits, and a rich creamy flavor. It has exceptional fruit that ripen in late fall and into spring, they are easy to peel and have a light, subtle flavor. Another outstanding feature of the Bacon avocado tree is its angelic sweeping branches which helps keep the tree shorter and easier to pick its fruit.
Nishikawa is a very hot seller! Oval fruit somewhat resembles Hass, but larger, and has very high oil content.

See all Avocado trees from our store

Pretty in Pink... and Purple Prince for her!

By Onika Amell, tropical plant specialist

Q: I have a bare spot in my front garden, behind a low wall, in part-sun. I'm hoping to find an evergreen, flowering ground cover that will cover it quickly. Any ideas on finding something with the ability to eventually also cascade over that wall? I live on Marco Island, Florida.

A: Barleria Repens - Small Bush Violet, is a tough, fast-growing evergreen that blooms from late spring to autumn. Of the many Barleria we see in the tropics, Pretty in Pink is one of the most striking! The name tells the whole story: pretty and pink. A lot of gardeners enjoy using them as a ground cover. They will quickly cover a large area - their stems root readily as the plant crawls along. They are easily propagated by lifting the rooted runners or using cuttings. They also reseed easily. Flowers are followed by seed pots that explode open when dry, dispersing 4 seeds at a time! But perhaps best liked by many gardeners, is their habit to cascade. It will be well suited for covering the bare area in your garden and spilling over that wall beautifully.
When used as a ground cover, remember to pinch out young shoots to encourage bushiness and prune the plant back hard after flowering to keep it neat.
Barleria repens will also adapt to different situations in a garden if you need them to. Although they usually form a rounded to spreading bushy shrub, 2 ft high by 3 ft wide, they will climb when you give them support. They are often allowed to lean into nearby trees and shrubs.
Hardy to 28F, Barleria repens is pest-free and fairly frost-tolerant. They love sun and part shade, as well as well-drained soil and plenty of organic material. Avoid planting it in deep shade as it will get leggy and reluctant to flower.
They will thrive when fed with a slow release fertilizer at intervals of 6-8 weeks, throughout the growing season.

There is another cultivar of this exact variety that has blue-purple flowers, it is called Purple Prince! It couples perfectly with Pretty in Pink! :)

See all Barlerias from our store

Plants for South Texas and other hot states

Q: Pretty much adore last newsletter. Haven't been buying because our weather here in deep south Texas is so bad it is stunting and killing even the Tamaulipan Scrub! Do you have a cure for that? :) I have every expectation the new grafted Plumeria I purchased from you last year will bloom soon. One of my favorite plants. Thanks again and keep up the good works.

A: Yes, there is a "cure" - using biostimulants that improve drought- and heat- resistance (SUNSHINE boosters), plus the right plant selection. In fact, there is a large number of tropical rare plants that can be successfully grown in hot climates like yours. One of our partners lives in hot and dry Arizona area and has an amazing tropical garden that includes many fruit trees (Mango, Persimmons, Pomegranates, Loquats, etc). Here you can see a few pics from his garden.
Your choice is absolutely right about plumerias. Other easy plants would be Desert roses - Adeniums, and Fancy Euphorbia millii - all these come in so many varieties of colors and bloom throughout most of the year. Our special recommendations for you would be also:

Bougainvillea Dwarf Pixie
Jasmine sambac
Calliandra selloi Pink Lilian
Dracaena marginata Tricolor - Colorama, Money Tree
Hamelia patens Lime Sizzler - Variegated Fire Bush
Jatropha berlandieri - Buddah Belly
Pedilanthus tithymaloides - Devils Backbone
Trachelospermum asiaticum Mandaianum - Dwarf Confederate Jasmine

See full list of more plants that are suitable for hot and dry landscapes.

Apply fertilizers, miscroelements, and plant stimulants for improving heat tolerance

Triple Sec Mango

By Onika Amell, tropical plant specialist

Q: I live in Mesa, Arizona. I am considering purchasing two of you Triple Sec Mango trees. Can you please give me some information on this variety and how to grow it successfully here in hot and arid Arizona, if at all?

A: Triple Sec Mango is a new name for the superior variety Seacrest. The aroma of this fruit resembles Triple Sec - an orange liqueur. It's a juicy, mid-season variety that has good disease resistance.
Mango has pretty good heat and drought tolerance. It loves sun, but there are a lot of factors to consider when growing Mango in your area.
Check your soil. Soil quality is always first and foremost: when you live in an area of Arizona with hardpan (extremely compacted desert soil) or caliche (layers of soil cemented by calcium carbonate) you will have to learn how to deal with such soil types. Amend the soil as needed.
The best time to plant is spring or fall to give your Mango a chance to get established before the really intense Summer heat starts. Alternatively, protect the tree with a shade cloth. Tender, new growth will not stand a chance unprotected, especially newly planted and/or young trees.
Mangoes are tropical and sensitive to frost and freeze damage. Young trees especially will also need winter protection when temperatures go near or below freezing. Always plant trees in a location where they will be protected from cold wind. Consider staking your newly planted Mango trees for the first year. It's never a bad idea to even stake during periods of high winds.
Make sure your planting site has very good drainage. Always use a good quality mulch around your tree as it helps to trap moisture, keeping the ground and the roots beneath it cool. Keep mulch a couple of inches from the trunk of the tree. Avoid a location that gets full day sun. Morning sun, afternoon shade is ideal. Give regular watering until the tree is established. Once established, water only when the soil feels dry.
Fertilizer with a Mango-Food. A foliar spray of micronutrient solution is always recommended during the active growing period. Use plant stimulants and microelements to improve cold hardiness and vigor.

See more info on growing mango in hot climate and container grown mangoes in Arizona.

Selecting the right jasmine

Q: Would you please help me select the right jasmine? I want to find a jasmine that smells like lily of the valley or honeysuckle or roses, not the one that smells like gardenia. I'm in Missouri, zone 6, so I want a jasmine for my deck for the summer, so I want it to bloom this season.

A: There are 3 major types of tropical flower fragrances - Sweet, Fresh, and Fruity (including Lemony). Below are the most interesting fragrant tropical flowers, excluding Gardenias (which are sweet type). These are all same-year bloomers, so you can enjoy the fragrance this year assuming proper care and bloom booster feeding.

* - The fastest growers that can be treated as annuals. Others can be grown in a pot and brought inside for winter, and be enjoyed every year.

Sweet

* Aloysia virgata - Almond Bush
* Cestrum diurnum - White Chocolate Jasmine, Day Blooming Jasmine
* Cestrum nocturnum - Night blooming jasmine
* Heliotropium peruviana - Turnsole, Cherry Pie
Portlandia Cubanola domingensis - Cubanola (Warm white Chocolate)
Portlandia grandiflora - Glorious Flower of Cuba (Warm white Chocolate)

Fresh

Beaumontia grandiflora - Easter Lily Vine
* Brugmansia Jean Pasco - Yellow Angels Trumpet
* Brugmansia Variegated Orange Angel Trumpet
* Brunfelsia americana - Lady of the night
* Brunfelsia lactea - Lady of the night
* Brunfelsia nitida - Lady of the night
Crinum Queen Emma - Spider lily
* Eucharis grandiflora - Amazon Lily
* Hedychium coronarium - Butterfly Ginger
Hiptage benghalensis - Helicopter Flower
Hoya odorata - Fragrant Hoya
Ixora hybrid Sea Green
Ixora odorata - Fragrant Ixora
* Jasminum azoricum - River Jasmine
* Jasminum Molle - Indian Jui
Jasminum nitidum - Star Jasmine
* Jasminum officinale Flore Pleno - French Perfume Jasmine
* Jasminum polyanthum - Pink Winter Jasmine
* Jasminum sambac Belle of India
* Jasminum sambac Grand Duke
* Jasminum sambac Maid of Orleans
* Polianthes tuberosa - Tuberose
*Sclerochiton harveyanus - Blue Lips, Mazabuka (Lavender-violet-like)

Fruity

Aglaia odorata - Chinese Perfume Plant (Lemony)
Artabotrys siamensis - Climbing Ylang-Ylang (Lemony)
Cananga fruticosa - Dwarf Ylang-Ylang
Carissa grandiflora - Natal Plum
Cerbera x manghas hybrid - Enchanted Incense
* Jasminum dichotomum - Rose Bud Jasmine
* Lonicera japonica - Japanese Honeysuckle
Magnolia figo - Banana Magnolia (Banana-like)
Magnolia x Alba grafted (Bubble-gum-like)
* Mirabilis jalapa - Four oclock plant
Oxyceros horridus, Randia siamensis
* Quisqualis - Rangoon Creeper
* Radermachera Kunming - Dwarf Tree Jasmine
* Stephanotis floribunda - Bridal Bouquet
Strophanthus gratus - Climbing Oleander
Telosoma cordata - Pakalana vine (Lemony)

Fertilizers for profuse flowering:

Pink N Good Daily Plant Food - Flower Booster
Tropical Allure - Smart-Release Booster
SUNSHINE-Superfood micro-elements

Heavenly Angel's Trumpet

By Onika Amell, tropical flower specialist

Q: Can you please tell me which zones are the best for growing Angel Trumpets? When do they bloom and is there a specific fertilizer to use on them? Do you sell any variegated varieties?

A: If you are lucky enough to live in an area that doesn’t freeze or only has light frosts, you can grow Brugmansia (common name Angel Trumpet) outside all year long. They are only entirely hardy in USDA zones 9-12, but they remain very popular throughout the United States. They do really well in coastal settings in the Southwest. They are simply glorious in the coastal areas of South California. In the southwestern states, as well as in the tropics, they bloom spectacularly throughout the spring, summer, and autumn.

Angel Trumpets are very heavy feeders and they need huge amounts of nitrogen. You can use a standard balanced slow-release fertilizer on Brugmansia, but then you must apply it very generously. We've created a specialized fertilizer just for them. Angel Trumpet Delight is a perfect Brugmansia food for frequent monthly feed. It's a 30-day Smart-Release formula that works wonders for Angel Trumpets. A a well-balanced combination of macro- and micro- nutrients with a slow release action, it provides continuous feed, maintains vigor and disease resistance. It also contains coated nitrogen, early release nutrients and extra iron (water soluble and chelated) for quick green-up.

Angel Trumpets come in a dazzling array of colors: orange, yellow, green, white, pink, red, emerald and even purple (closely related Datura). One of our favorites is the beautiful Variegated Orange Angel Trumpet, a new hybrid with variegated leaves and a large single bloom that starts white and turns orange. Another amazing variety is "Sun Explosion" - with a variegated orange flower.

Most folks are usually in awe of the enormous trumpet flowers when they see it for the very first time. They most definitely need to be planted where they can be admired… near a deck, terrace, lanai or, entryway. The blossoms are short-lived, but numerous, continuous, and truly show-stopping! And they smell so good! This is a must have in any tropical garden. They can be grown either as a bush or a small tree. They are easy peasy to grow and root extremely easily, making them great as pass-along gifts for friends. They are sun-loving and super fast-growing plants. Plenty of water and fertilizers keep them happy and at their best. Did I mention they smell good too? ;)

How to get gingers to bloom

Q: I have several gingers in my yard, including Red Torch, Lobster Claw, and Red Bamboo Ginger, they grow beautifully but only produce large dark green leaves and no flowers. Is there anything I can do to make them bloom? Do they need any special fertilizer?

A: Gingers are easy to grow tropical plants with so many benefits, giving us unique spice, and showy flowers (including long-lasting cut flowers!) - where other plants fail, especially in deep shade. They are not fussy about soils and even water once established. To keep your gingers happy, follow these simple steps:

1. Bright light is essential for flowering, but planting gingers in semi-shade or filtered light will keep them stress-free from burning summer rays.
2. Water gingers regularly until they established and start producing new leaves and stems. Once they start clumping, you may reduce watering to a minimum 9once a week or so), or rely on your sprinkler system.
3. Once the plant is established, start using fertilizer to induce flowering and healthy growth.
- We recommend granulated "smart release" fertilizer for all tropical plants. For gingers, the best formula is Tropical Allure. It provides all macro- and microelements essential for the healthy growth of the plant.
- Apply balanced water-soluble plant food for Gingers, Heliconias and Bananas - Broad Leaf Plus - once a month.
- Additionally, you may also add to the menu flower booster Pink N Good Daly Plant Food - this fertilizer is used in very low concentration and can be used with every watering.
4. Remove old dry and yellowing leaves with sharp cutters to avoid pest problems and keep good air circulation around these clumping plants.
5. Keep soil covered with 1" mulch to protect from weeds and maintain the optimal amount of moisture for the rhizomes.

Check out our specialized fertilizers for different plants - for all your gardening needs!

Breathtaking Queen's Wreath

By Onika Amell, tropical flower specialist

Q: I've just moved from Virginia to Sarasota, Florida. I'm looking for a vine similar to Wisteria to grow in my new garden. I've so enjoyed my Wisteria vine and I'm hoping to find something equally spectacular for my FL garden. Truth is, I'm getting older and won't be able to keep up with the hard-core maintenance Wisteria needs to keep it in under control. Is there a similar vine you can recommend that is just as showstopping as Wisteria?

A: The vine that immediately comes to mind is Petrea Volubilis or Queens wreath. It looks similar to Wisteria, and though a fast and strong climber, it's not invasive or destructive at all. An occasional pruning is all it will need to maintain it. Much like Wisteria it gives a glorious show of flowers when spring arrives. Masses of long, mauve flowers will continue to appear on and off in summer with another burst of flowers in the fall. Flowers are up to a foot in length!
Hummingbirds, bees, and butterflies will all be impressed with you for growing this charmer.
Snip off the gorgeous flowers, put them in shallow bowls of water around your home and be the envy of all your friends and house guests!
This vine prefers the warmth of Zone 10 to thrive, but it will survive in areas of Zone 9B when it borders zone 10A, especially if it's placed in a protected area. It grows best in full sun but will tolerate part shade. It's great for coastal gardens and once established, it has good drought tolerance, medium salt tolerance, and good wind tolerance. It has no major pest problems, which is always a bonus.
Grow and shape it as you like: a large bush, a small tree or a breathtaking espalier. Some people plant Petrea vine by a tree to create that much sought-after ethereal wisteria effect. This is no doubt a very charming vine and a must-have for those who are in love with Wisteria but scared of its vigorous growth and ongoing maintenance.
For Wisteria lovers we also recommend its spectacular tropical relative Millettia reticulata - Evergreen Wisteria.

Fruit tree size and production

Q: I am interested in a Strawberry Tree... does this tree produce fruit while still small or do I have to wait until it is large before it produces? Should I fertilize it so it produces sooner? I ask because my garden is not large and I prefer to keep my fruit growing trees in a smaller size. Also, how big is the fruit and does it have a seed?

A: Strawberry Tree, Muntingia Calabura, is one of those fascinating fruit trees that starts flowering and fruiting in small size. We have plants growing in 1 gal containers that already have flowers. This tree is nearly year-round producer providing warm conditions. It is a fast grower, although a compact tree when mature, and can be trimmed to desirable size without affecting production.
Muntingia fruit is one of our favorites. It is super sweet and juicy, and the seeds are tiny small, not bigger than the strawberry seeds, so you don't have to spit them out. The fruit size normally about 1/2 inch, but we have a tree in our garden that produces almost cherry-size fruit! See picture above. The secret is, good watering and using fruit booster - SUNSHINE honey micro-element supplement. We also fertilize our fruit trees using Fruit Festival and Mango-Food fertilizers.