Date: 19 Jul 2020
Sugar grains on leaves?
by Mark Hooten, the Garden Doc
Q: On my Stemmadenia tree I noticed tiny drops (like white sand grain or sugar crystals) and wonder if this is a disease or some kind of insect and what can I do about it?
A: Sometimes certain vigorously growing (mostly tropical) plants
develop suspiciously-looking tiny "growths" mostly on the undersides of their
leaves. Without strong magnification, they can be easily mistaken for mealy
bugs, scale insects, or any number of parasitic disease vectors.
However, according to plant pathologists, these are actually harmless
excretions actually exuded by the plants themselves. A chemical analysis of these
tiny granules shows that they are nothing more than polysaccharides.
Polysaccharides are basically complex chains of sugar/glucose molecules which are
simply a production of all plants undergoing photosynthesis. Polysaccharides are
at the beginning of the entire food-chain. These odd tiny sugar-grained
nodules are actually only semi-crystalline complex sugars which certain plants
have over manufactured and have had no choice but to excrete through their
stomata (breathing pores).
I have personally observed Cecropia, Psychotria, Spondias (Hog Plum), and Guavas doing this... there are many others. Nothing to worry about,
they are harmless, but if they bother you - wash them off with a hose water.
Date: 2 May 2020
Which fertilizer is right?
Q: I need some advice on which fertilizer(s) would be perfect for my C​annonball tree and its cousin Heaven's Lotus (Gustavia augusta). ​I also have fruit trees... soursops, mango, etc. and a collection of flowers including pua keni keni, plumeria, bougainvillea, etc. I am wondering if you can recommend a custom fertilizing regimen for my garden (especially the cannonball and the gustavia since they are young).
A: It is a perfect time now to fertilize your plants as they start active growth. We have suggestions on fertilizing programs for your trees. You will find here our recommendations for:
1. Young trees
2. Flowering trees
3. Fragrant plants
4. In-ground grown fruit trees... CONTINUE READING >>
Date: 2 Jan 2020
The most fragrant flowers
Q: Hope you can help me with the following question with an upcoming newsletter. Would you please let us know of the strongest (pleasant) fragrant plants you currently have in stock? Fragrance that fills the space.
A: The most fragrant flower that "fills the air around" in definitely Chanel #5 - Cananga odorata a.k.a. Ylang Ylang. Just one tree when in
bloom can fill the air with fine perfume for yards away.
Another strongly scented perfume tree is Joy Perfume - Magnolia champaca (both orange and white
flowers are sweetly fragrant).
If you are looking for a smaller size plant, then the most fragrant are -
- Jasmine sambac
- Night-fragrant white-flowered Brunfelsias - B.
americana, B. nitida, B. Gigantea, B. lactea and others.
- Night blooming Jasmine - Cestrum nocturnum is another favorite shrub with night-fragrant
flowers, the scent is super strong and super sweet.
-
Artabotrys hexapetalus - Ylang Ylang vine with wonderful lemony fragrance that fills the air.
See Full list of fragrant plants.
Date: 23 Oct 2019
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
Date: 11 Oct 2019
Fun of growing your own Pepper
By Onika Amell, tropical plant specialist
Q: Can you grow your own black pepper plants in the USA?
A: Who does not love the smell of freshly ground pepper, especially that lovely combination of white, green, black and red peppercorns, which are so much more interesting than just plain black corns. Yes, you can absolutely grow your own pepper! Peppercorns come from the plant Piper nigrum.
Growing Pepper Plant
Black pepper plants are actually vigorous vines, although they are
pretty slow growing and can be kept in a pot as a compact plant. But they will
need a strong support to climb over. Indoors, you can provide this support by
installing a trellis in a large pot. Some gardeners prefer to grow them as a
hanging plant instead. In warm climates, you can plant them directly outdoors
in a protected location with partial shade. These plants need rich, moist,
well-draining soil and warm, humid conditions. Peppers do not like temperatures
below sixty degrees, although they can survive some cold spells. It is very
important to bring these plants indoors or wrap them in a blanket if colder
weather arrives.
If you live in colder parts of the country, you can certainly grow
peppercorns in large pots. Grow them outdoors during the summer and move them
indoors during the winter, or grow them year-round in your greenhouse.
Houseplants will need bright light and consistent moisture. Spray the leaves regularly
with a bottle of water to increase humidity. Do not allow room temperatures
to fall below sixty degrees.
Besides the benefit of being able to grow your own gourmet pepper
corns, the foliage, as well as the flowers on this plant, are beautiful in its own
right. Off-white flowers appear from spring through summer, followed by slow
fruit production. The berries will appear on spikes, with 50 to 60 berries
per spike.
Fertilize this vine in the spring before new vigorous growth emerges. We
recommend:
Tropical Greenhouse Plus - Plant Booster
Tropical Allure - Smart-Release Booster
You may be surprised to learn that black, white, green and red peppercorns are all the same seed on the same plant in the various stages of development and processing.
Black peppercorns are the most familiar and come from the corns that have reached their full size but are still green and not quite ripe. They are picked and allowed to dry in the sun. Enzymes in the berries cause the skin to turn black during the drying process. They are the strongest in flavor.
White peppercorns are the mature berries that ripen to a red color before being picked. After harvesting, they are soaked and rubbed free of the outer skin down to the smooth white underlayer, then dried and bleached by the sun. They are slightly milder than black pepper.
Green peppercorns are the unripe peppercorns picked at the same stage of ripeness as black peppercorns, but not allowed to dry. They can be pickled in vinegar or brine. They are the least pungent.
Red peppercorns are the mature, but unshelled version of the peppercorn. One can usually find them in some gourmet and health food stores. They can be quite expensive.
Ground pepper will only stay fresh for about three months, but
peppercorns will last indefinitely. To make the most of your pepper harvest, store the
peppercorns in an airtight container in a cool, dark location. Grind them
immediately before use for the best flavor.
There is nothing like freshly ground black pepper simply combined with
a good quality olive oil and a splash of balsamic vinegar. This makes a
wonderful dipping sauce for fresh bread. Simple, yet elegant. All the better if
the pepper was grown in your very own garden!
