• Online nursery only
  • Orders from January 5, 2022
  • First shipping date: April 19, 2022

Characteristics of the tree

Height at maturity
1 meter (3 feet)
Spacing
1.8 meters (6 feet)
Soil
Well drained
Sun / shade
Full sun
Flowering
Mid-to late May
Harvest
Late August to mid-September
Average fruit weight
2g
Fruit color
Dark blue-black
Years to bear
3
Self-fertile, but better production with a pollinator
Latin name
Vitis sp. Trollhaugen
Average diameter of fruit
1.5cm
Brix
16.6
Trollhaugen is an early-ripening, dark blue grape. Although not quite ‘seedless,’ its seeds are very small and not disturbing. It is soft and juicy, with a pleasant sweet flavour with floral aromas.
Height
Availability
Price
1-3 feet
TBA
$ 20.00

We are currently closed. Opening for orders on the 5th of January 2022 at 10.00am EST!

Height at maturity
1 meter (3 feet)
Spacing
1.8 meters (6 feet)
Soil
Well drained
Sun / shade
Full sun
Flowering
Mid-to late May
Harvest
Late August to mid-September
Average fruit weight
2g
Fruit color
Dark blue-black
Years to bear
3
Self-fertile, but better production with a pollinator
Latin name
Vitis sp. Trollhaugen
Average diameter of fruit
1.5cm
Brix
16.6

Trollhaugen grapes are medium-sized and dark blue-black, and grow in medium-sized, compact clusters. The grape is soft and juicy in texture, and although it is not quite ‘seedless’ as some claim, its seeds are very small and not much perceptible. It has a very good sweet and floral flavour, with aromas of peach and blueberry. The skin of the grape is of medium thickness, slip-skin (does not adhere to the grape). We like these grapes best for fresh eating, but some also recommend them for drying. The grape ripens early (in late August or early September for us in zone 4) and should be harvested as soon as it is observed to be ripe, as the grapes can deteriorate quickly if the stalk is not in good condition. 

The Trollhaugen grape vine is classed as cold- hardy in zone 4. It is also late to open its buds, making it less likely to be damaged by late frosts. It is very vigorous and while it can produce fruit alone, its production is considerably improved with pollination from another variety of grape nearby. It has good resistance to most grape diseases and a slight susceptibility to phylloxera. 

Trollhaugen was developed by Elmer Swenson, from a cross between MN 78 and Venus. It was selected in 1985, and introduced for propagation in 2000. It was given its name by David McGregor, a breeder and vineyard-owner (who, rather curiously, named it after a ski resort and adventure park in Wisconsin.) It is sometimes nicknamed ‘Troll.’ 

Grape vine illustration
vigne racines nues grape vine bare rooted

When planning where to plant your grapevines and what kind of supporting structure to use, you might want to consider the possibility of laying down the vines under the snow for the winter. While all the cultivars we offer are hardy to at least zone 4, and therefore should not need extra protection for winter, we prefer to be on the safe side. Therefore, after we have pruned our grapevines in fall, we lay down the branches on the ground so that they will be insulated by the snow during the winter. We designed our fence with this in mind: you can see how we made it here. This might not be necessary in warmer zones, but is something you should consider if you are in zone 4a or colder.