Q: I received a mango tree we ordered last week (I am in
California) and am trying to make sure we take care of it properly. I noticed the
corners of some leaves have began drying out. I wanted to see if there was
anything else we should be doing or if it is something normal. Overall the tree
looks good and the leaves have perked up, but I noticed the dry tips on a
handful of leaves. Any help is appreciated! I have not fertilized in the pot yet
or applied the mango sunshine booster.
A:Your mango tree looks pretty healthy, and these dry leaf tips
may be caused by overall shipping stress. You have dry air in California, and
temperatures may be getting up, this may cause additional drying effect. You
may start fertilizing with a liquid fertilizer, it will help the plant to get stronger and grow
faster - then heat and dry air won't be a problem as soon as the plant becomes
better established and hopefully go into a bigger pot soon, or in the ground.
Make sure to provide regular water if you have hot dry summers.
Q: I have 5 avocados. Three of your cold hardy varieties and two
others that have all flowered and set fruit in the past. The last two years
including this year, not a single one of them has put out any flowers. I am
getting lots of new growth like one would expect on a tree too young to flower.
The last two years have been very mild with out any damaging frost where in
previous years they lost all their leaves due to frost yet started putting
out flowers once winter was over. I am confused because they have all flowered
and set fruit previous years. Any ideas would be appreciated.
A: From information you provided, and considering the trees get
lots of full sun and cold was not an issue, the only explanation is - lack of
nutrients. Here is an example.
Very common situation: you get a small 2-3 ft Avocado or Mango tree in 3
gal pot (or even smaller) from a nursery, full of flowers, and sometimes even a
small fruit. You bring it home, plant it in the ground or a bigger pot, it
looks happy and grows like crazy. Then next year - oops, no fruit, sometimes
not even flowers. What happened?
When the tree lived in a nursery, it was provided with all necessary
nutrients through the injector systems (continuous feed); or some nurseries may use
top dress smart release on regular schedule. Regardless of fertilizer type,
professional grower's set up delivers plant food non-stop, on regular basis, with balanced formulas. Plants are not only growing fast but also ready to produce, since nutrients are always available for a full growth cycle.
When you plant a tree in the ground (or larger pot), conditions change.
They may be beneficial for the plant: lots of room for roots to establish, hence
lots of vegetative growth. Even if you planted it using good quality fertile
soil, this soil may contain mostly nutrients responsible for vegetative
growth (branches and leaves). Chances are, your soil may be rich in Nitrogen
(good for green growth), but poor in other elements responsible for flowering and
fruiting (Phosphorous, Potassium, and many important micro-elements such as
Molybdenum, Boron, Iron, etc.). Besides, existing soil gets exhausted
quickly, and within a year a two, if you don't add fertilizer, flowering and fruiting may be reduced or even stopped.
This is why fertilizing program is very important for fruit trees that are expected to bring a crop soon.
Also keep in mind that some fruit trees have a habit of "skipping" a year and may either produce less or not produce at all every other year. In any case, balanced nutrition program can help to fix this "bad habit".
Q: Hi, I purchased ylang ylang tree a couple of years ago. It's grown quite well in my Greenhouse but I'm having some trouble figuring out if I'm watering it too much not enough or if it has an insect. Can you please take a look at my photos and maybe give me a suggestion of what my problem might be?
A: It is normal for Ylang Ylang tree to get dark spots during
winter time. Sometimes Cananga gets whole branches darkened (especially dwarf variety fruiticosa), some may even fall off. But they will be replaced
with new growth in Spring-Summer. There is nothing wrong with your plant, it is
just a reaction to cold and short day light when you keep this plant indoors. These leaves eventually will fall
off as the weather warms up, and will be replaced with a new fresh green growth.
Luckily, Cananga is not susceptible to insects and diseases, but its leaves
can look unattractive in winter.
Make sure to keep watering at minimum until temperatures raise to 80's.
Start fertilizing as soon as new growth appears. We recommend SUNSHINE Pikake
- Fragrant Flower Booster, an ultimate fertilizer for fragrant plants.
Q: I purchased two sweet red pitayas, that arrived and were
planted on May 28, 2020, they were damaged but not serious. my question is this
one pitaya is a beautiful green, and has grown 6or 8 "already, the other is
bigger and is a grayish green and has not shown any sign of growth at all in
six weeks, how long do I wait before I throw it out and buy another?
A: Being a cactus, sometimes Pitaya slows down its growth waiting
for more favorable conditions. If one of your plants doesn't show any new
growth, just give a it some more time and make sure the plant stays happy. To
make pitaya happy, provide the following: - Water. Unlike most cacti, Pitaya prefers regular watering (but not
a wet soil). Make sure it is planted in well-drained media. Do not water
again if soil remains moist, wait until it dries out on the surface. During hot
weather, Pitaya enjoys light daily watering. - Light. Unlike most cacti, Pitaya benefits from a filtered light
especially while establishing. Try to create a temporary shade over the plant
until it starts active growth (if grown in the ground), or move the pot in
filtered light. Dull color or dry spots are signs of sun burn. Once the plant
shows new growth, you may remove sun protection, or move the pot gradually into
the full sun. - Food. Pitayas are heavy feeders. Use the following fertilizer: SUNSHINE C-Cibus - Crop Nutrition Booster
Q: I've been growing dragon fruit cuttings from Okinawa, Thailand
and Vietnam for several years in pots and cannot get them to fruit. Any
fertilizer suggestions? I live in Northern Virginia so I bring the massive pots
in the garage under lights and a heater for the winter but back outside once
the temperature warms up.
A: There is a little trick to get Dragon fruit to flowering and
fruiting. This plant likes flowering when it is attached to a strong support.
In commercial plantations, they use special trellises/frames made out of
logs, but you can make one yourself using simple materials.
See article: Do-It-Yourself Support Structure for Dragon Fruit.
And of course, don't forget a special plant food for tropical fruit - Sunshine C-Cibus.
You can successfully get your Dragon fruits to fruit in pots, providing
bright light in Summer. In Winter, keep the plants on a dry side to give them
some rest and a chance to hibernate before the next fruiting season.
How to get Canistel tree to produce
without dropping flowers and fruit
Q: My Canistel tree is 3 1/2 years old and is growing very well, see the
picture below. It gets hundreds of pea sized "berries" but then they fall off. No
canistel fruit. What's wrong?
A: You have such a nice looking tree, it is a shame you can't get
any fruit to ripen.
In our experience, Pouteria trees dropping fruit prematurely is a very common problem.
There may be one of the following reasons, or a combination of them:
- Cold winters may affect production, and while Canistel is generally
pretty hardy tropical plant that can easily withstand short periods of chill, the
fruit may never form properly if it had a cold winter.
- Lack of water. Canistel tree is pretty drought tolerant, but for the
proper production cycle it needs regular irrigation. Especially during hot
summer.
- The tree may be not strong enough; young trees drop fruit very often when
they don't have enough "fruiting energy" built up in their system.
Your tree looks well established and vigorous, however, flower/fruit drop
is often a sign of insufficient nutrients of particular kind, usually Boron
(B) and/or Molybdenum (Mo): either when a tree is too young and not strong
enough, or because of poor soils and lack of necessary elements.
Here is what can be done, considering you live in a warm, frost-free
climate.
1. Provide regular fertilizing program. We recommend liquid
fertilizers Sunshine Boosters that are safe to use with every watering and year
around. It is beneficial to switch plants from traditional "slow-release"
fertilizer to the liquid one because it makes a huge difference in plant growth
and flower/fruit quality and quantity. See also:
- Why liquid fertilizers are better than dry
- Article about benefits of liquid fertilizers.
Use this plant food for your Canistel tree:
SUNSHINE C-Cibus - Crop Nutrition Booster
2. Apply micro-element remedies that are very effective for
improving fruit production, especially when flower or fruit drop occurs:
SUNSHINE Honey - promotes more efficient blossoming and pollination, makes
flowers bigger and reduces bud drop.
SUNSHINE SuperFood - improves plant vigor and quality and size of
flowers
These are all natural, eco-friendly supplements that work great for fruit
trees and other edibles.
