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Index > Garden Blog

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Growing desert roses

Q: I purchased a Desert Rose and planted it in Adenium mix. I keep it in full sun with once a week watering assuming this is a desert plant that likes lots of sun. Some leaves turned yellow and now I am not sure should I move it into shade or need to water more? Or maybe fertilize with something?

A: Desert Rose - Adenium, unlike cacti and other succulents, prefers filtered light. It can grow in full sun but leaves look healthier in light shade. Watering must be very moderate, however don't let soil harden like a rock: water again right after the soil gets dry. We suggest to use special Adenium Mix. Cactus mix may work well, as well as regular potting mix, in which case it is recommended to add a bit of limestone (we simply put sea shells on top of the pot - it looks very pretty!) - because adeniums prefer slightly alkaline soil (while most of tropical plants like acidic soils). If leaves turn yellow, this may be a sign of underwatering. Use water soluable fertilizer with high phosphate as foliage spray, and only on healthy plants, according to label dosage. It helps both caudex growth and flowering. Make sure to avoid fertilizer contact with a caudex.

RECOMMENDED SUPPLIES:
Adenium Plant Food - Flower and Caudex Booster
SUNSHINE-BC - Caudex booster
Adenium Soilless Mix

Read more about growing Adeniums:
What you need for successful growing Adeniums
Growing Exotic Adeniums

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Super RARE: the Honduran Moon-Torch Cactus

by Mark Hooten, the Garden Doc

The most wonderful, easily growing, giant flowering, fragrant, and floriferous species of Selenicereus I have grown is an almost unknown species called Selenicerius hondurensis. While its climbing stems are rarely thicker than a Sharpie marker, it's flowers measure 12 to 14 inches across (!), open as the sun is setting, and produce a most incredible fragrance... very rich and spreading thru the area. It smells like a combination of both white chocolate and vanilla. S. hondurensis also develops the most richly colored flowers of the Selenicerei, the outermost petals being a glowing orangey-gold. It's very stunning and provocative! It flowers magnificently, several times during the summer... Continue reading...

Recommended fertilizers:

Tropical Greenhouse Plus - Plant Booster
Tropical Allure - Smart-Release Booster

Picture of the actual plants for sale:

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Planting and mulching during hot summer

Q: I would like to buy some trees and vines for my garden but I am not sure if it is a good time for planting. It's hot now in Florida. Should I wait till it cools off? If I plant now, can I rely on sprinklers?

A: Summer is always a good time for establishing plants because this is the time of the most vigorous growth. For the first 2-4 weeks, plants should be watered daily with a garden hose as you can not rely on sprinkler system yet. Mulch around plants generously - this will help:
- Maintain moisture
- Maintain soil temperature - protect roots from heat
- Reduce weeds and grasses
- Provide nutrients to the soil, and
- Reduce wind erosion from uncovered soils

Date:

Variegated Shell Ginger - Alpinia zerumbet

By Onika Amell, tropical plant specialist

Q: I live in Deltona, Florida and hoping to find spreading ginger with interesting foliage to grow in a partially shaded area in my garden under a group of trees. Any suggestions?

A: Variegated ginger Alpinia zerumbet variegata is a clumping ginger valued for its beautiful variegated foliage. The dark, green leaves have striking yellow stripes. This ginger is sought-after, not only for the stunning foliage but also for its beautiful flowers. The flowers are different from other members of the ginger family and appear in drooping racemes from the ends of leafy stems rather than directly from the rhizomes. This ginger is also commonly known as Shell Ginger because the flowers resemble seashells! They are pink-tinged, fragrant and appear in summer. This evergreen perennial grows in upright clumps 3-5 feet tall. You may prune the plant to control size.
It does not tolerate drought or a hard freeze but can take a few hours or light frost (goes dormant in such case). In colder areas, rhizomes should be dug up and stored in a cool room during winter.
This ginger will love a shaded corner in your garden. Plant it in organically rich, well-drained soil in full sun to part shade. Keep the soil moist but not soggy, and spread a thick layer of organic mulch around the plant for moisture retention. There are no serious insect or disease problems to worry about!
This ginger can be also be grown as a house plant as long as it has bright light and humid conditions. It will grow to around 3-4 feet tall as a houseplant.

Recommended fertilizers:

Broad Leaf Plus - Ginger-Heliconia-Banana Booster
Tropical Allure - Smart-Release Booster

Limited time special offer:
Instant $5 off Variegated Ginger - Alpinia zerumbet

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Shipping plants during hot weather. Ship plants now or wait until it gets cooler

Q: Can you ship my plants now or should I wait until it gets cooler? Daytime temperatures here are around 90F.

A: Top Tropicals ships year around. In transit, packages are usually kept in a temperature controlled environment. In hot summer time, it is still safe to order plants in mail, as long as the box is not left at your doorstep in full sun.

Keep your eye at the weather forecast and if temperatures get to extremes (over 95F daytime), we strongly advise that you be present to accept delivery. As your package may be left on your doorstep by the carrier, this prolonged exposure to heat may be harmful to the health of your plants.

If no one is available to accept delivery, we suggest that you contact our customer service to postpone shipment until a later date or coordinate an alternate delivery address, or simply use your work address for delivery - so you can get your plants without delay. You may also use the delivery address at FedEx pickup locations to avoid delays!

We monitor the weather at destination before shipping. When daytime temperatures in your area are over 90F, your shipment may be delayed to ensure plants have a safe trip and do not overheat in the delivery truck. See information on shipping process and terms.

Please contact us for more info on holding orders during hot weather.

Read more about hot weather shipping...

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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

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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

Date:

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!

Date:

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.

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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!