Green Mountain

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Leaf Flowers Plant
Sprout Tuber Sliced tuber


  • Origin & Breeding: bred by O. H. Alexander, Charlotte, Vermont, in 1878 from the cross (Dunmore x Excelsior).
  • Year registered in Canada: 1923.
  • Registration number: P-11.
  • Maturity: late.

Botanical Features

  • Plants: large, spreading; stems thick, prominently angled; nodes green, slightly swollen; internodes faintly mottled reddish purple; wings wavy.
  • Leaves: moderately open, large; midribs and petioles scantly pubescent.
    Terminal leaflets: medium-sized, elliptical-ovate; apex acute; base decurrent.
    Primary leaflets: medium-sized, elliptical-ovate, four pairs.
    Secondary leaflets: on the midrib between pairs of primary leaflets and at the junctions of the midrib and petiolules.
  • Flowers: large, white, on green buds.
  • Tubers: large, short-oblong to oblong, flattened; ends usually blunt; smooth buff skin, often netted; medium-deep white eyes; white flesh.
  • Sprouts: brownish purple.


High yielding variety; stores well; well suited for washing after two months storage; grows well in light soils.

Remark: excellent variety very well suited for home gardens

  • Utilization: excellent for boiling, baking, and french frying; unacceptable for chipping; suitable for starch.
  • Chief Market: fresh market and home gardens.

Reaction to Diseases

Resistant: black leg, fusarium dry rot (Fusarium coeruleum and F. oxysporum), verticillium wilt.
Susceptible: common scab, leaf roll, phoma rot, tuber net necrosis, viruses X and Y.
Highly susceptible: late blight.

References: 1, 6.

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