There is at least one variety of Seckel pear that can have large pears that I have done research on, regardless often bigger than regular seckel pears it’s called “Vermont Beauty” from grand isle Vermont
Vermont Beauty has strong, pleasant, and somewhat spicy flavor, almost as delicious, as mouthwatering, as appetizing, and as flavorful as a normal seckel pear. It’s pears are very bright, very sweet, very fine grained, melts in the mouth like butter if given a chance to fully ripen off the tree in cool enough weather. This variety of seckel pear has larger more attractive pears than the average seckel pear if they ripen in cool enough weather. It’s crop ripens a little later and keeps longer than the average seckel pear. Being from Grand Isle Vermont it’s clearly more cold hardy than the average seckel pear.
Production wise in numbers it does not fall much short of the average seckel pear, weight wise it’s crop is basically the same as that of the average seckel pear crop, that is due to the larger size of it’s pears making up for the smaller number of pears. The first seedling of Vermont Beauty was planted by Benjamin Macomber of Grand Isle, VT.
Fruit is small to medium in size, shape is that of the average European pear. Smooth skin is sharp lemon yellow with a slight greenish tone, has a bright deep rich red blush inclining to purple with pinkish-red dots that stand out a lot, very attractive, has a rich flavor, moderately juicy, nearly free of ugly markings. Firm but becoming somewhat buttery when fully ripe, can not be picked as unripe as a lot of other varieties can be.
Blooms as early as May 6
Harvests starts Sept or Oct
Merits: very hardy (to zone 3); naturally upright-spreading tree, tree is moderately vigorous and is sturdy.
Faults: fairly susceptible to scab and fireblight.
Note: UP Hedrick, in Pears of New York, thought it not improbable that Vermont Beauty was identical to Forelle (Trout) pear, but it has since been determined that they are not the same, it is an obviously distinct variety.
Supposed to have originated as a chance seedling in the nursery of Benjamin Macomber, Grand Isle, Vermont, about 1885
Vermont Beauty pear in Vermont are only good if September and October are cool enough. One of those unusually warm or hot Late summers early autumns by Vermont standards means lousy pears on the Vermont Beauty trees.
I am suspicious of the sensitivity to fireblight claim since it was used in Honeysweet hybrid to gain fireblight resistance.