The earliest and also the hardiest blue seedless grape, it can remain hanging on the vine for weeks after ripening without losing much quality. Medium-sized berries are exceptionally sweet with a mild Concord-like flavour. A real favourite for fresh eating, it also makes excellent raisins. Trollhaugen was introduced by Elmer Swenson, the renowned grape breeder from Wisconsin. The name reflects his Norwegian heritage.
SELF-FERTILE | ZONE 4 | HARVEST: EARLY SEPT
Try Lee Reich's simple recipe for powdery mildew control in grapes or gooseberries. Spray plants with the following:
4 litres (1 gallon) of water
1 tablespoon sodium bicarbonate (baking soda)
1 tablespoon canola oil
Repeated applications may be needed, especially in rainy weather.

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Lynn Martin (verified owner) –
Josee Levesque (verified owner) –
George Ball (verified owner) –
Anonymous (verified owner) –
Asbjorg Vanderveer (verified owner) –
Happily growing now after root pruning (entanglement)
Greg (verified owner) –
Arrived in great condition with clear instructions on how to plant.
Eric L. (verified owner) –
Paul Saleh (verified owner) –
Thanks!
Myrna B. (verified owner) –
Mike (verified owner) –
Vine is doing well.
Susan C. (verified owner) –
To be honest, I just loved the name so that fuelled the purchase. A troll’s favourite grape variety is definitely something worth trying. It has settled in nicely and is happily growing. It’s a happy, healthy plant.
Debbie (verified owner) –
I got this grape at the end of the season. It took a few weeks to come out of dormancy, but did and is looking fine. I can't wait to try these seedless grapes.
Connie Piatkowski (verified owner) –
Armindo Cabral (verified owner) –
Douglas Vye (verified owner) –
Kristjan Alle (verified owner) –
Beautiful grape but as advertised zone 4, these really struggle to make it through the winter. I would call them a no hardier than zone 5.