Repotting Artocarpus with a taproot in ground

Q: The Chempedak I bought from you almost 3 years ago which I had repotted twice has a thick taproot growing in the ground, which I noticed this past winter. I was going to repot into the largest size pot almost half of a 55-g rain barrel. Can I try to dig/save as much of the taproot before repotting, will it die if I had to shorten/cut what I can't dig out completely? I hate to put it in the ground for fear it may not make it when we have severe cold/long hours of frost. I live in west Cocoa, Central Florida, 9b.

A: Yes, you can repot the tree and keep it in reasonable size container after trimming the roots. Most of the tropical trees (fruit trees not an exception) can be grown in containers even if in Nature they grow into vigorous large trees. The key is, trim the roots every time you transplant it. The process is similar to trimming branches and both don't hurt the plant as long as done right and moderately. You should trim the overgrown and spreading limbs at the same time. You may trim as much as 10% off root system at the time of repotting. This will cause the root system to branch out and become fuller, similar to branches, which is a good thing. If a tree grows a taproot like in your case, it is not necessary to try "saving" and digging out the whole root that may go down for a few feet. You may cut it off without major damage to the tree since the rest of its root system will continue to support the plant metabolism. Just keep in mind that the plant will be stressed for a while - so put it in bright shade and water regularly until signs of stress go away (wilted or dropping leaves may occur). This particular type of tree - Artocarpus - is pretty strong and vigorous so the stress should be minimal.

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

10 trees to graduate

A new law hopes to fix deforestation and teach young people about environmental stewardship. Students in the Philippines now have a final requirement in order to graduate from school: they must plant 10 trees. The new law, which came into effect on May 15, 2019, will apply to graduates from elementary and high schools, and college or university.
With 12 million kids graduating from elementary school, 5 million from high school, and 500 thousand from university every year, that means 175 million trees will be planted annually! Over the course of a generation, that will mean 525 billion trees, although Alejano has said that even if only 10 percent of the trees survived, that's still an impressive 525 million in a generation!
It sounds like the Philippines has introduced a wonderful program that other countries would do well to emulate. Anything that gives young people a sense of connection and responsibility for the natural environment bodes well for its future... Continue reading...

See Tropical Treasures article: How to Plant a Tree (pdf file)

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