True love of Night Blooming Jasmine

By Onika Amell, tropical plant specialist

Q: I live in New Cumberland, West Virginia. I love the smell of Night-Blooming jasmine. Is it possible to grow it in the northern panhandle of West Virginia? Do I have to plant it every year or do I keep it in a pot and take it inside during the winter months?

A: Technically, Night Blooming Jasmine is not a true jasmine (those plants belong to Oleaceae, or Olive family). Night Blooming Jasmine belongs to the Solanaceae family, also known as the Nightshade or "Potato" family of plants. Yes, this sweet fragrant flower called Jasmine for its perfume is related to potatoes and tomatoes!
Night Blooming Jasmine - Cestrum nocturnum - is loved by many gardeners for its beautiful fragrance at night. It is one of the most fragrant tropical evergreen shrubs available. Cascading clusters of tiny, tubular pale yellow to white flowers open at night and release a heavenly fragrance throughout the garden, especially on warm summer evenings. The fragrance is much lighter during the day. Night Blooming Jasmine is grown year-round in zones 9-11. It is at its happiest in a sunny to a partially sunny spot in your garden in well-drained soil but can be grown in cooler climates as a container or greenhouse plant.
You would absolutely be able to enjoy this plant during the warm months in West Virginia, but it will most certainly not survive outside during the winter. You will have to bring it inside. Take it outside again only once you are confident there is no more possibility of frost. When grown indoors, be sure to give it the sunniest, South facing window in your home. When grown in a container, you will need to re-pot it every two to three years so it doesn't become root-bound.
For those who are lucky to live in frost-free areas, in ideal growing conditions outside, it can easily reach 8 feet with a spread of 5 feet. It has a lovely informal look that can soften a more manicured garden. Add organic matter to the planting hole when you plant to enrich the soil around the root ball. Water well in the summer, but allow them to dry out a bit between watering in the winter. Plant this Jasmine near pools, porches, doors, windows, and walkways where its lovely fragrance can be enjoyed. The shrub is also an excellent plant for privacy hedges and screens. When grown as a hedge, plant 3 feet apart.
Trim lightly after a bloom cycle to shape and then do a hard pruning in fall or spring to control the size of this plant. Fertilize 3 times a year - in spring, summer, and autumn - with a good quality granular fertilizer.

Recommended fertilizers:

Pink N Good Daily Plant Food - Flower Booster
Tropical Allure - Smart-Release Booster

Interesting facts:

Night-blooming jasmine is an excellent mosquito repellent. The powerful scent of the flowers attracts moths and bats that feed on mosquitoes and other small insects.
The flowers of the Night Blooming jasmine are widely used in India and other countries of South Asia for perfumery, medicinal applications and in religious ceremonies.

Limited time special offer:
Instant $5 off Night Blooming Jasmine

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

The Flower of Gold

By Onika Amell, tropical plant specialist

Q: I am concentrating on adding more fragrance to my garden. I've had great success growing gardenias and I have many different varieties, but their flowers are all white, and I would like to add some colors to my garden too. Are there any gardenias available in different colors? I live in Waipio Acres, Hawaii.

A: Meet the very rare and highly fragrant, tropical Gardenia tubifera Kula or Golden gardenia. Kula flowers change color as they mature, which is a unique feature! Kula flowers start out as cream, then change to yellow and finally to a beautiful gold. In addition to the spectacular flowers, this gardenia also has beautiful, leathery, deep green foliage.
This is a slow-growing and compact plant. Like all the other members in the Gardenia family, the Golden gardenia will do best in an acidic, well-drained, and fertile soil. It will appreciate a good deal of direct sunlight but will be very happy if provided with midday and afternoon shade. As with with gardenias, the more sunlight the more flowers.
It will eventually grow into a rounded shrub if left unpruned, but also can be trained into a small tree, maintainable to a height of under 7-8 feet. Blooms will appear from spring onward. Prune after flowering, this will encourage more flowers in a few months.
Gardeners living in colder areas, do not fret. Gardenias make perfect container plants and can be grown indoors in colder climates. Just be sure to provide high light when bringing them indoors.
The fragrance and changing colors of a Gardenia Kula is unforgettable. They are most fragrant near sunset and during early evening hours. Plant them near walks and patios where their lovely fragrance can be enjoyed.
This rare tropical Gardenia is sure to be a conversation piece in any garden. Great collector's plant!

Recommended fertilizers:
Pink N Good Daily Plant Food - Flower Booster
Tropical Allure - Smart-Release Booster

Limited time special offer:
Instant $5 OFF Golden Gardenia!

Growing Jackfruit in a pot

Q: I have a young jackfruit tree, and I wanted to know, is a 25 pot enough for an adult tree?

A: 25 to 50 gal should be eventually a good size pot for growing a Jackfruit tree. Keep in mind the following:

1. Start with a smaller container, only slightly bigger than the root system. Do not plant directly into a large container, this may create a risk for root rot.
2. Step up the tree in a bigger container every year as it grows bigger. With every repotting, trim both branches and roots to compact the plant and to encourage branching out.
3. Jackfruit trees should be kept pruned under 6-7 ft in pots and 10-12 ft in the ground. This makes healthy fruit production more efficient and keeps fruit at the base of the tree.

   

Horned Holly - a cool bonsai plant

By Onika Amell, tropical plant specialist

Q: I live in Chickasaw, Alabama. I am a beginner bonsai grower. I received a lovely little Horned Holly as a birthday present and I want to know if it is a suitable plant to bonsai?

A: The Ilex cornuta - Horned Holly, or Chinese Holly, is very popular as a bonsai species. It is loved for its very beautiful and distinctive rectangular foliage and for its small, white flowers which give way to large, red berries. The berries are larger than those of the European Holly. The leaves are rectangular and unusually shaped with three large spines at the apex. This bonsai will take both sun and shade, but semi-shade is preferred in midsummer. If indoors, give it plenty of bright light. When kept outdoors, your Horned Holly bonsai will need some frost protection and should be sheltered from strong or cold winds. It will need a fair amount of water and should not be allowed to completely dry out. Watering during the heat of summer is especially important, as well as in spring right before the fruit production, and should be reduced during winter. This species will also appreciate regular misting of the foliage. Repot this bonsai every 1 to 2 years in early spring, using bonsai soil - TopTropicals Adenium Soilless Mix. Fertilize the holly every two weeks throughout the growing season using either a balanced fertilizer diluted to half strength. We recommend for this purpose Tropical Greenhouse Plus - Plant Booster. Pruning should be done in early spring.
Horned Holly is also very popular as a hedge plant as it grows dense and compact. It will grow to between 3 and 5 feet tall and will spread to an equal distance, giving it a round, shrubby form. It is cold hardy! Zones 6 through 9. It will tolerate a wide variety of soils as long as it is well-drained. It likes sun or part shade. It is heat and drought tolerant once established, and are often used in xeriscaping. Its branches produce dark olive-green foliage that is often cut for indoor decorations during the holidays.

Limited time special offer:
buy 1 get 1 free for only $10!

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.

Millingtonia hortensis - Tree Jasmine

By Onika Amell, tropical plant specialist

Q: Q: How fragrant is the Tree Jasmine (Millingtonia) and how tall does it grow?

A: Millingtonia hortensis, or Tree Jasmine, is such a beautiful flowering tree with long, white, slender and trumpet-shaped flowers with a perfume that wafts through the air. These trees are very sought after because they are so highly fragrant. They are fast-growing trees that in Nature (Burma) can easily reach a height of 40-50 feet, however here in SW Florida we have them growing about 20-25 ft. The tree flowers at night and then shed the flowers in the morning. The flowers are waxy and stay fresh for a long time. In India the flowers are picked up and braided for rituals. It flowers from October until the end of December. The tree is also known as the Cork Tree, as an inferior cork is processed from the corky bark. It is a fast growing, tall, straight tree with few branches and its popularity lies in its ornamental value and not in its shade-giving properties. Yet, once you've witnessed the profusion of white flowers, you will understand why. It is a sight to behold! Cork tree is very easy and can grow in a variety of soils. It requires full sunlight.

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)