Giant Tree Junipers-Mammoth and Gargantuan

Mammoth and Gargantuan represent new tree selections of an old horticulturally rich genus of cultivars of both hybrids and species of the Chinese juniper. Rather than compact, pyramid, twisted, dwarf or any other odd shape or form, these two selections represent large vigorous trees with fast growth and dense foliage on wide angled limbs. Trees will ultimately reach 50-60 ft. tall easily. This form is not represented with today's cultivars of which most are dwarfs and shrub like. 

The foliage is not prickly and Immune to cedar apple rust and juniper blight. The plants show no winter damage and are hardy into zone 3.  These two selections were found as seedlings of a large grow out of juniper seeds. A few seedlings showed dark green foliage color as well as not being too prickly and showing excellent vigor. Each tree represents the fastest of the selections with bright green foliage all through winter with no chance of bronzing due to wind or cold. 

Both selections produce no fruit and haven't for over 25 years. The trees are cross pollinated and no fruit is produced ever.  The rooting will give a means to propagate it as a clonal variety for distribution. Without rooting, then the cultivars have to be grafted onto Red Cedar. Juniperus virginiana for best results. 

Both Mammoth and Gargantuan could easily be grown as wind break and ornamental trees where no fruit is desired and dense wide spreading branches are needed to create both privacy and to filter wind movement. The trees could easily create a lumber or wood of great use. The selections need pruning to limb up to create a more uniform trunk. The caliper of the trees develop quickly making it a very well rooted tree in a short period of time. 

Mammoth - Fastest growth with straight growing central leader and wide branching. Developed the largest caliper of all types. 

Gargantuan-Fastest growth with straight growing central leader and wide branching. A little more emphasis on branching with dense lateral branching. Caliper was a little less than Mammoth. 

Cuttings of both (10 of each type) are sent either in late fall for rooting or spring for grafting. Still trying to figure out the exact details on rooting these selections other than air pruning methods.  The grower that sent me the seeds years ago is trying his hand at it this year.

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