Climate:
Mangoes are a strictly tropical fruit. The best climate to
grow mangoes is frost free, with cool, dry winters and steamy,
hot summers. Mangoes like growing in light and free draining
soils, they don't need rich soil. You actually get the best
crops on soils of somewhat lower fertility.
you can buy mango
trees at a nursery or you can grow your own from seed: The
seed grown trees will take a lot longer to bear fruit. (Unless
you know how to graft them or know someone who does.) Mango
trees that were grown in a nursery are usually grafted and
should fruit within three to four years. Seedling trees may
take five to eight years. Seedling mango trees grow much
bigger and stronger than the nursery trees and have an
indestructible root system. Grafted trees are of a more
manageable size. Another advantage is that you know you will
get a reliably bearing tree. If you grow mango from seed you
need to know exactly which tree your mango seed came from or
you won't know what you are getting until eight years
later...If you buy mango trees in a nursery I suggest you
don't look just for size and colour. Have you ever tasted the
variety you are about to buy? Some mangoes taste awful...
True. Some of the commercial varieties are bred for shelf
life, size and looks, but are barely edible. (Yes, I am
totally spoiled when it comes to mangoes.) So, know the
variety you buy! Secondly, if you plan to grow more than one
mango tree, find out if it is an early or late fruiting
variety. Don't buy three trees that all fruit at the same
time. Thirdly, if you live in a cooler, subtropical area, make
sure you get a variety that flowers well in those conditions.
All mangoes will grow if your climate is frost free, but
flowering habits depend on temperature and vary. And without
flowers there will be little fruit...And last but not least,
especially if you live in an area where it may rain during the
cooler time of the year, you should also look for a variety
that shows good resistance to the mango disease anthracnose.
(More on that below.) Growing mangoes from seed is actually
quite easy. (All the seeds of the mangoes I eat, dry and
freeze are thrown out in the garden as mulch, and they all
grow...) The most important step is the seed selection! If you
take any old shop bought seed it may not grow true to type.
The seed needs to come from what is called a "polyembryonic"
variety. What that means is that the seed will sprout several
identical trees. And those seedling trees will be identical to
the parent tree. They are clones. Ideally you know the parent
tree, it's from your area, grows really well and gets a bumper
crop every year! If not, oh well. Get seed from a
polyembryonic variety and at least you know that the fruit you
harvest will taste the same. (The most common commercial
variety in Australia, the Kensington Pride—also known as
Bowen-—is polyembrionic. It's also a vigorous tree and usually
fruits reliably, so it is well suited for seed growing. If
anyone knows a good variety to recommend
The best time to grow mangoes from seed: is the beginning
of the wet season (beginning of summer). Eat a nice mango,
remove as much flesh from the seed as possible and then let it
dry for a day or two.
To germinate
the mango seed: you could just put the whole thing in a
warm, moist place and wait for it to sprout. Then cut off all
the seedlings except for one. (The smallest supposedly gives
you the best fruit.) Or, if you prefer to fuss over them (or
if you have only one seed but want half a dozen trees) then
you can carefully cut a corner of the fibrous big seed. Cut
only just deep enough so you can see the two halves of the
seed, and then break it open. Inside you find several small
bean shaped seeds. Hopefully they are white and not all grey
or brown and shrivelled. You can plant those mango seeds
individually. They should take about ten days to sprout. I
like to sprout my seeds right where they are to grow. That way
I don't need to worry about hardening them off (getting a
shade grown seedling used to full sun) or about transplanting
shock. If you are worried about the little thing getting
eaten, uprooted or trampled you can always put a barrier
around it. If you prefer to first grow your mango tree in a
pot, follow the instructions for nursery trees when it comes
to planting time:
Planting a mango
tree: You plant a mango tree
just like you plant any other fruit tree, so I won't go into
specifics here. (A page about planting fruit trees is coming
soon.) The best time to plant your mango tree is the beginning
of the wet season (summer). Make sure you select a place in
full sun. (And make triple sure you really want a big tree
there!) The tree needs to be sun hardened. If your mango tree
was grown in a shade house, gradually get it used to the sun
first. Then dig a big enough hole. Carefully separate tree and
pot without disturbing the roots. Put tree in hole, fill in,
water.
Caring for a
mango tree:
I mentioned at the beginning that mangoes need little care.
It's true. Young mango trees do benefit from regular watering
and a little fertilizing until they are established. But don't
love your mango tree to death. Overwatering can kill it,
especially if your soil is a bit heavy. And too much nitrogen
fertilizer will make it weak and sappy, all leaves and little
fruit, susceptible to bugs and diseases.
The older the
tree gets, the less nitrogen it needs. Phosphorus and
potassium are more important. Mulch your mango tree heavily
and spread a bit of compost every now and then. If your soil
is reasonable that should be all the tree needs. If the
compost is made with wood ash, all the better. (Wood ash
supplies potassium which will encourage fruiting and make the
fruit taste better.) For mulch use only rough stuff like hay
or lucerne, nothing that may mat down and become all soggy
like grass clippings.
Fertilize
mango trees: in spring and summer only, and only a little
at a time. A good way of helping the tree is foliar spraying
with fish fertilizer or seaweed solution. It provides trace
elements and avoids deficiencies, but it doesn't overfeed. But
your best bet, even on very poor soil, is still lots of
organic matter by way of compost and mulch. When the tree is
one metre high, cut it back by a third so it branches. When
those branches get to a metre, cut the tips off again. That
should give you a nice shaped tree.
Pruning a mango
tree:
Mangoes respond very well to pruning. And they are forgiving.
Whatever you mess up, it will grow back... Mangoes grow
terminal flowers (they flower at the tip of a branch), so the
more branches you have the better the crop. You can encourage
lateral branching with tip pruning. (Only taking off the tips
of branches.) You should also aim for an open crown, taking
out whole branches if the centre becomes too crowded, so that
air and light can penetrate. You can use pruning to keep your
tree a manageable size and a nice shape. Mango tree growing
too tall? Cut it down. Too wide? Cut it back. Pruning mangoes
is not a science. In fact, the commercial growers here hire a
big, scary machine with a long arm with three huge rotating
blades. The machine drives along the rows and gives the trees
a good hair cut so they all end up exactly the same height and
width... You can do something similar by hand if you want to
keep your tree a certain size. Usually mango pruning is done
after harvest, though in some cooler areas the preferred time
is just before flowering. Ideally you prune only a little bit
every year. If you let a mango tree grow much too big first,
and then cut it back to a third of its size, the tree will
likely skip the next crop... (Cut it back to a stump and it
will take two years or more. But amazingly they will grow back
even from that!) Having said all that, after the initial cuts
to encourage branching as mentioned in the previous section,
you don't HAVE to prune a mango tree. If you don't mind having
a real big tree, mangoes grow and fruit very well without
pruning!
Flowering, fruit
set and harvesting mangoes:
Mangoes flower profusely and self pollinate very well. The
flowering is triggered by cool nights. In the true tropics a
severe cold snap will bring out masses of flowers. For us a
severe cold snap is a night below 15°C. In years where it
doesn't get so cold we end up with poor crops. (But there are
mango varieties that flower well even when it doesn't get so
cold... That's why I grow a dozen different ones.) In colder
climates it can easily be too cold for mango flowers to be
viable. Selecting cold hardier varieties is important for you.
(Nam Doc Mai would be a suitable variety in Australia.)
Initially you may see masses of tiny mangoes on your flower
panicles, but the tree will shed a lot of them and keep only
what it can handle. So don't worry if you see a lot of them
drop off. The mangoes will grow bigger and plumper, and
eventually they will start to change colour. How long that
takes depends on your climate. The hotter the weather the
faster the mangoes ripen. Usually your mangoes will be ready
by the beginning of the wet season (late spring/early summer).
If your mangoes get eaten (wild birds, bats, possums, the
neighbour's kids...) you can pick them half green. They will
ripen at room temperature. (Ha! My rooms are about 40°C at
that time of the year... when they say room temperature they
mean 18-22°C.) Be careful when harvesting mangoes, don't get
any of the sap on you. The sap can spurt from the fruit stem
when it snaps off and can cause burns, allergies and
dermatitis. It also burns the skin of the mango, which will go
rotten at that spot. (Doesn't matter if you eat it straight
away, but it does when you pick them half green.) The best way
to harvest mangoes is to cut them off with a long section of
stem still attached, and to handle them carfully so that the
stem does not snap off.Source:
http://en.wikipedia.org/wiki/Mango