tree can live more than 200 years and grow up to 14 meters of height.
But normally they grow in bushes up to 5 meters high. There exist deciduous
and perennial holly trees, having both red fruits which appear in autumn
and last the whole winter, but only when the plant is already some years
old. The leafs are compact and small of an intense green which can mute
into yellow at the borders. The trunks are normally quite linear.
I use solid fertilizer in spring and start reducing progressively the
dose starting in summer and stopping totally in winter.
Ilex prefer to be placed in the sun, inclusive hot sun, some species
Temperature and exposure:
Holly trees prefer humid summers and not too cold winters as they won't
survive very cold winter with temperatures below -10° Celsius.
I have them outside the whole year without any problem. They don't like
heavy winds, always prefer the humid type or even wind protected sites.
Pruning and cleaning:
Eliminate all the young sprouts from the trunks and a excess of fruits
as all these will weaken the tree. Prune the new branches and leafs
where needed. Cut the branches to a length of 3 to 6 cm and give the
tree a nice form cutting the main branches with care. The main prune
should be done in early spring.
acebos can be wired very easily as the branches are very flexible and
accurate to form. Be careful to avoid breaking the young branches and
protect them always with raffia.
Repotting / Soil:
The mixture to use for holly trees is made of 1/3 of humus, 1/3 of compost,
1/6 of clay and 1/6 of sand. The soil should be light and fresh, even
sandy. I prefer low colored ceramic pots, normally in dark blue or dark
frequently keeping the soil humid but not wet. Be sure to water more
when the flowering period starts to increase the amount of fruits. Let
dry out from time to time but not for a long period.
only disease I have had yet on my holly tree was a light attack of aphids;
but I suppose that this happened only because the tree was sited nearby
a oleander bush which in summer is always very affected by these parasites.