. I'm looking to grow cooking oil in the desert;
the healthiest is the mac nut (macadamia).
. avocados are heavy in palmitic fat;
and other nuts have a bit too much omega-6 .
. olives are difficult to process,
brazil nut fat is good only for selenium,
(the anti-cancer cysteine-bound form),
better to get that from brocolli and onions .
. so, what can I grow in the desert,
around Tucson AZ -- zone 12 ?
desert mac nuts use a lot of water:
. moderate location with high humiditymore mac nut specifics:
Macadamia trees prefer moist soil conditions
and have roots that grow close to the soil surface
to optimize moisture absorption.
Being an Australian native plantno Avocado:
it has adapted to low levels of phosphorus .
. mac's are vulnerable to frost
so cultivation would only suit
frost free temperate to tropical zones.
. use rich, well-drained soil;
with plenty of of nitrogen and potassium:
use chicken manure and compost
before planting and as a regular side dressing
throughout the growing season .
Macadamia tree has a very fine fibrous root system
that is vulnerable to drying out,
so tip number one is
to grow it with regular irrigation
and a good layer of mulch in the home garden.
Lucerne is a good mulch
that adds nitrogen as it breaks down;
a layer at least 5cm (2 inches) deep is needed
around the drip line of the tree
to keep moisture in and weeds out.
. Avocado is a tropical planttucson is in zone 12 .
and does not like frost
or temperatures under 50F .
Avocado trees prefer high humidity of 60 to 80% .
They can also grow in dryer climates
(with no less than 40 percent humidity),
but more problems may occur with the fruit or tree.
what nut does grow in desert? almonds:
If you live in Sunset Zone 12,
late frosts will be your main concern:
for frosty areas you should
plant varieties that bloom a little later,
such as "Hall" or "Mission" .
Almonds need a pollinating partner,
so you will need at least two trees.
They do not have to be the same variety,
but do need to bloom at the same time.