Garden Blog - Top Tropicals

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TopTropicals

Varieties of Guava

Q: We were just in Australia where guava juice was available in the markets. Pretty sure I can grow different varieties of Guava's here, as I have 3 already, but wondering if it would be psidium guajava or littorale as the best bet for making the pink juice we enjoyed. Thanks so much, your plants are so healthy when they arrive!

A: Both species are used for commercial juice making. We grow lots of Psidium littorale - Cattley Guava, Strawberry Guava - and we make delicious juice. Psidium guajava - Tropical Guava, Guajava - is less juicy, fruit is somewhat dry, but it still has a great flavor; you may need to add water to blended pulp. And sugar - add it to both kinds of fruit!

Check out our Guavas!

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Best tasting white guava

Q: What's your best tasting white guava?

A: Our favorite white Guava is Viet Nam variety that is also very rare and hard to find. The fruit is very large, up to 6" in diameter, the pulp is very sweet and somewhat crunchy. The seeds are small which makes it more pleasurable to eat out of hand.
Another great feature of this variety, it stays compact and branches do not get leggy, unlike most guavas. It can be easily grown in a container, trimmed to the desired size and it will produce fruit under proper care.

Another cool variety is Indonesian, it also has a large round fruit and very few seeds to compare with others.

And last but not least, if you prefer soft fruit to crunchy, the Peruvian variety is a great choice. The fruit is pear-shaped.

Remember to provide plant food for good production, especially if grown in a container.

Fruit Festival Plant Food - Super Crop Booster
Mango-Food - Smart Release Fruit Tree Booster
SUNSHINE C-Cibus - Crop Nutrition Booster

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How soon will Guava tree fruit?

Q: Can you tell me how your Guava trees are propagated? Grown from seed vs. air grafted, etc.? I'm interested especially in the Barbie variety. In particular, I'd like to know how long it takes them to bear fruit - I live in Southern California zone 10b, with good sunlight.

A: Guavas can be propagated by seed, air layers, or grafting. Propagation method depends on the species.
Cattley guavas - Psidium littorale - are usually grown from seeds and start flowering and producing as early as in 2-3 years from seed. Tropical guavas, Psidium guajava - especially named varieties, are propagated usually by air layers, and the rarest varieties like Variegated Honey Moon are often grafted, although they will come true from seed (it's just takes them longer to fruit). Both air-layered and grafted plants start producing right away, usually on the same year of planting or next year, depending on growing conditions.
Barbie Pink is a superior variety, very popular among fruit lovers. It produces large aromatic fruit with a bright pink pulp and very few seeds. This variety is air-layered; in our nursery, these plants start flowering and setting fruit in 3 gal containers.
Plant this tree in full sun and provide regular watering, guavas don't like to dry out. Use fertile soil, with at least 50% of compost, and add some soil conditioning components for better drainage: bark, sand, perlite, etc. Mulch well, just make sure to keep mulch 2-3" away from the trunk. Follow our detailed planting instructions that come with every plant, and you are good to go!

Recommended fertilizers:

Fruit Festival Plant Food - Super Crop Booster
Mango-Food - Smart Release Fruit Tree Booster

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Flavor of Feijoa Superfood

by Onika Amell, tropical plant specialist

Q: What exactly is Feijoa - Pineapple Guava? Does the fruit really taste like pineapple? I am curious to know if it is easy to grow.

A: Feijoa is certainly one of the easiest fruit trees to grow as it does not require much care. It is an attractive, evergreen tree or large shrub with dark green, oval, leathery leaves. It has an abundance of uses in the garden and produces lovely edible flowers and fruit! The fruit is eaten fresh, added to smoothies or fruit salad and is also commonly used to make delicious jams and wicked chutneys. Feijoa fruit go a long way in flavor.
This plant is drought tolerant and will grow in almost any soil type. It loves full sun or partial shade and is wind resistant. A lot of gardeners like to grow it as a wind barrier for this reason. It can easily be shaped into a dense, informal hedge or screen that needs very little pruning. Because of this density, it provides excellent shelter for all kinds of wildlife. Butterflies, birds, and butterflies will all love you for growing Feijoa!
Space the plant five feet apart to create a wind barrier hedge. Heat does no not bother it at all and it will also withstand temperatures to 10 degrees F.
The plant gets its names from the delicious perfume it emits. Some folks seem the fruit taste like pineapple, with a slight minty undertone. Others feel the flavor reminds them of juicy fruit gum! The texture is described as smooth and slightly gritty - almost like a pear, but firmer.
If you prefer to grow this plant as a tree rather than a large shrub, simply remove the lower branches up to one-third of the tree's height over a period of time. The Pineapple Guava can grow up to 15 feet wide and tall. They also do really well as a container plant on patios where you can truly enjoy the lovely fragrance of the fruit. It prefers rich, organic, well-drained soil and will need light fertilization every other month in most soils.

We recommend:

Fruit Festival Plant Food - Super Crop Booster
Mango-Food - Smart Release Fruit Tree Booster
SUNSHINE-Honey - Sugar booster
SUNSHINE C-Cibus - Crop Nutrition Booster

Pretty, pink, edible flowers will wow you from May to June, followed in late summer or fall by the delicious and fragrant fruit. An interesting thing about this fruit is that you don't pick it. It falls to the ground when it is ripe. Or simply place something under your tree, like a tarp, and shake the tree. The ripe fruit will fall off. You can store the fruit in your refrigerator for up to a week. And remember! The fruit of the Feijoa is not only a very rich source of soluble dietary fiber, but also an excellent source of Vitamin C, and very rich in antioxidants. They are also low in calories. Each fruit only holds 55 calories.

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TopTropicals

URBAN TROPICAL GARDENING:
10 secrets of successful Container Mango growing on a balcony.

Q: I live in Miami in apartment on a second floor, and I have a balcony with SE exposure. I wonder if I can grow a mango tree in a pot? Will it fruit for me? I recently moved to South Florida and I don't know much about tropical plants; but I tasted real fiberless mangos from someone's garden - it was so delicious and different from those in the grocery store. I wonder if I can have a fruiting tree on my balcony? And if yes, how do I plant and take care of it?

A: Yes, you can! Here is what you need to do:
1) Temperature. You are lucky to live in Tropics, keep it on a balcony year round.
2) Light. Position the pot in a spot with the most sun exposure. Mango trees can take filtered light too, but the less sun, the less fruit you will get.
3) Soil and Container. Use only well drained potting mix. Step up the purchased plant into next size container (3 gal into 7 gal, 7 gal into 15 gal). When transplanting, make sure to keep growth point (where roots meet the trunk) just at the top of the soil. Covering base of the trunk with soil may kill the plant.
4) Water. Water daily during hot season, but only if top of soil gets dry. If it still moist, skip that day. Mangoes (unlike Avocados!) prefer to stay on a dry side.
5) Fertilizer. Use balanced fertilizer once a month, 1 tsp per 1 gal of soil. Do not fertilize during fruiting - this may cause fruit cracks.
6) Microelements. Apply SUNSHINE-Superfood once a month. This will help your mango healthy, vigorous, and resistant to diseases. Use SUNSHINE-Honey to make your fruit sweeter.
7) Insect control. Watch for scales and mealybugs, clean with solution of soapy water + vegetable oil (may need to repeat 2-3 times with 10 days interval), or with systemic insecticide like imidacloprid only as needed (if non-harsh treatment didn't help). Most Flea shampoo for dogs contain that chemical, you may try that shampoo solution.
8) Trimming. Once potted, do not remove leaves that are discolored or have spots until new growth appears. Dark dots on mango leaves, especially in humid climate like Florida, may be signs of fungus. Treat with fungicide according to label, and remove only badly damaged leaves. Trim crown as needed after flowering and fruiting (by Fall). Train into a small tree, and you may remove some lower branches eventually.
9) Flower and fruit. Mangoes are winter bloomers with bunches of tiny flowers coming in thousands. Many of them set fruit (if pollinating insects present). Keep in mind that young trees can only bare a few fruit. Normally a tree will drop excessive fruit and keep only a few that it can manage. To save the young tree some energy, remove fruit if too many and leave only 2-3 for the first year. It will pay you next year with more abundant crop.
10) Variety. Last but not least: Choose the right variety for container culture! Pick from "condo" dwarf varieties such as Icecream, Nam Doc Mai, Carrie, Cogshall, Julie, Fairchild, Pickering, Graham, Mallika, and a few others - check out Mango Chart pdf and full list of our Mango varieties.

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How to feed a Mango tree...
and to grow a Dwarf Mango

How to fertilize a Mango tree

Q: My mango trees that I bought and planted last august now have fruit. I bought 2 types of fertilizer from you and never used it. Should I use your fertilizer now?

A: It is a perfect time now to fertilize your plants as they start active growth. For mango trees, we recommend liquid fertilizer Sunshine Booster - Mango Tango. It is formulated for Mango trees, especially for container grown. It improves quantity and quality of flowers and ability to set fruit, reduces bud-flower-fruit drop. Can be used as often as with every watering. For best results, use in combination with Sunshine Honey and Sunshine Superfood plant supplements. Its scientifically-balanced stable formula is organic Amino-acid based and has NO EDTA chelators to eliminate nutrients lockup; it does not affect crop taste.
Additionally, you may use slow-release granulated fertilizer Mango-Food once a month during hot season only. Dosage: 1 teaspoon per each gal of soil. Water-soluble fertilizers can be also used, however, those are usually EDTA-chelated which is not as efficient as Amono-acid based Sunshine Boosters and may create nutrients build up, especially if overdosed in containers.
For in-ground mango trees, you may use all the above, and slow-release granulated fertilizer can be applied in larger quantities: spread a handful around the drip line.

Remember that only liquid Sunshine Boosters can be applied year around. With other fertilizers, you need to be careful not to overdose, and apply only during hot weather (when night temperatures are steadily above 65F).

How to grow a Dwarf Mango tree

Q: I received the Ice cream mango tree in great condition (thank you for the ingenious packing job) on Wednesday and have planted it in a pot slightly bigger than the root ball. I plan to grow the tree on my front porch, so how big a container should I ultimately use when the tree outgrows this pot? How big a container does it need to fruit? I hope to keep it around 6-7 feet high, if possible. I live in Hawaii.

A: Ice Cream mango is a perfect variety for container culture, and it should be happy in Hawaii. You did everything right. Keep it in this small pot for now and wait until it starts vigorous growth in Summer. Once it starts growing (and you will notice roots growing too, sometimes they try to grow through the holes in the bottom of the pot), then it's time to step up into a bigger container (7-10 gal). Eventually you may use container size as large as 15 gal. Ice cream mango is slow growing and compact, and you will be able to maintain it under 7 ft with very minimal pruning if any.

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6 easiest fruit trees and 5 spices to grow in containers indoors

Q: This is why I want to move so that I can grow absolutely anything I want from your catalogue. Prefered Puerto Rico. Right now I live in New York and there is absolutely nothing I can grow there.

A: Of course living in Puerto Rico brings more opportunities to grow tropical species. However, you can create your unique tropical paradise even living in New York. We have many customers from up North who successfully grow tropical species (and get them to flower and fruit) in greenhouses, and even indoors.
Here are a few suggestions of tropical fruit trees that adapt well for container/indoor culture - for both beginners and advanced gardeners.

Top 6 fruit trees great for indoors / container culture / beginners
1. Mango (Mangifera indica). Select from one of smaller mango varieties
2. Sugar Apple (Annona squamosa)
3. Guanabana, Soursop (Annona muricata)
4. Miracle Fruit (Synsepalum dulcificum)
5. June Plum (Spondias cytherea)
6. Guava (Psidium guajava)

5 top spice plants (the spice will be with you right away, you don't have to wait for it to grow)
1. Allspice (Pimenta dioica)
2. Cinnamomon or Campor tree
3. Bay Leaf (Laurus nobilis)
4. Mint Tree (Satureja vimenea)
5. Vanilla orchid (Vanilla planifolia)

See a brief article of growing tropicals outside of tropics.

Don't forget to get some SUNSHINE boosters for your plant collection - for both successful indoor culture and cold protection!

See also our magazine Tropical Treasures) - Pushing the Limits of Tropical Gardening, with list of issues.

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Growing sapodilla in container and indoors

TopTropicals.com

Q: I live in northwestern Washington state. I was wondering if I can grow a Sapodilla tree indoors in a container? Are they self-fertile, and which variety do you think would do best in a large container?

A: A: All Sapodillas are self-fertile. They can be successfully grown in pots due to their slow growth rate and compact nature. The most important requirement for successful growing and fruiting is a bright light, other than that it is a very undemanding plant and is not fussy about watering. The best variety for potting culture is Silas Woods which is a dwarf kind. This variety is the most profuse producer, flowering and fruiting nearly year round providing bright light and warmth. Although the fruit are smaller than other varieties and average 3-4" size.
Sapodillas require regular fertilizer applications for good production. We recommend Fruit Festival slow release fertilizer for the best results.

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Fast-fruiting trees

Grafted trees, including Mango and Avocado, will start flowering and fruiting right away

Q: It would be easier for us buyers, if we could search for plants that produce fruit in 2 years or less... I don't have the patience to wait longer than that for fruit. I'm trying to buy for a fairly good sized garden but want some fast growers and fruit produced in 2 yrs. Can you help me out?

A: Fruiting time depends on many factors (growing conditions, fertilizing, and even specific variety), this is why we can not just put a simple icon "will fruit within 2 years". However, most grafted and air-layered fruit trees, including all Mango, Avocado, Loquat, Sapote, Sapodilla, Longan, Peaches and Nectarines - will fruit right away.
If you see in our store "grafted" or "air-layered" in plant description - these trees will fruit soon. Some of them are already flowering and fruiting!

Some non-grafted trees will fruit within a couple of years or even sooner (those from cuttings, root division or even seedlings) - such as: Annona, Artocarpus (Jackfruit), Eugenia, Guava, Banana, Dragon fruit, Mulberry, Blackberry/Raspberry. Banana, Mulberry, Dragon fruit, Blackberry-Raspberry - usually fruit within a year. You may refer to our store directory page for fruit specials.

Also, all spice trees like Bay Leaf, Bay Rum, Allspice and many more - will produce spice for you right away, so you don't need to wait at all!

Annonas start fruiting within 3 years from seed and are the most popular fruit trees for both container culture and small gardens.

This Jackfruit started fruiting on the second year after planting in the ground.

Carambola - Start Fruit - will start producing fruit the same year or next year. We have them fruiting in pots, sometimes as small as 1 gal pots!

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Jungle on Windowsill 101

Q: I got a Jasmine Sambac and a Tahitian gardenia as presents, they are very cute plants with flowers and flower buds. I would like to be able to keep them alive and hopefully happy for a long time, but I don't know much about growing tropical plants, and I am not sure if my thumb is green enough to make everything right. What do they need? How much sun? How much water? What kind of soil? Sorry for all these (maybe silly) questions, but I want to keep them alive, please help! I live in Wisconsin and we had some snow again last week.

A: Growing tropicals is not a hard work, it is a lot of fun! These plants are actually a good starters for a beginner who wants to try growing tropical plants, no matter if you live in a mild frost-free climate, or up North where you can have these beauties as houseplants. Below are a few simple steps for you:

1. Read. Follow planting instructions included with your plants. Check plant names on the tags and learn more about them from our online catalog.

2. Soil. Plant in quality potting mix - it must be porous and well-drained, never use heavy soils (top soil or garden soil are no-no), in a pot exactly the size of the root system. You can step up your plants in the next size container once you notice vigorous new growth. Next size means: 4" pot can go into 6" pot, 6" pot into 10" pot, etc. Too big of a pot may create rotting environment, root system must fill the entire container to use all the moisture from the soil. Container must have good hole(s) for excess water to drain through. Put the pot in a saucer and get rid of excess water every time after watering.

3. Light. Most tropical plants require lots of light in order to produce flowers. If you ever visited Florida, remember the bright sun? - these are ideal light conditions for tropicals. Up North, provide as much light as possible: a bright spot on a windowsill of Southern or Western exposure would work the best. If the sun gets too hot in summer afternoon, you may shade the window a little bit with a sheet of white paper to avoid leaf burn.

4. Water. Keep soil slightly moist but not soggy. The best way is to wait until the top of the soil feels dry to touch - this is time to water again. Jasmines prefer to stay on a dry side; gardenias do not like soil to dry out - keep them slightly moist as long as soil is very porous and well-drained. The main reason of most problems with potted indoor plants is over watering. With experience, you will feel the right balance of moisture in the soil: the brighter the light, the more water is consumed by a plant; the less light, the less frequent you should water.

5. Trimming. In low light conditions, plants tend to become leggy. Trim branches as they become too long: the more you trim, the busier the plant gets. New growth promotes more profuse blooming in many species.

6. Fertilizing. Fertilize indoor plants with slow-release granulated fertilizer from march to November.

7. Insects. Check for insects at least once a month, especially underneath the leaf. If notice any problems (deformed leaves, residue, holes, or tiny insects) - clean the leaves/stems with a solution of warm water (1 cup), vegetable oil (2 table spoons), and a few drops of a dish soap.

8. Fresh air and air humidity. As soon as air temperature gets above 65F, bring your tropicals outside in the sun and fresh air: porch, balcony, outside in the yard. Air circulation is essential for your plant health. Bright light and high air humidity will promote vigorous growth, and lots of flowers for you to enjoy!

For more information on growing Tropical Plants 101, see Problem solving with potted plants - how can we help them?.