Table Grape "Theresa"

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Grapevine "Theresa" fully ripe - 10 cent piece for size reference

Characteristics

"Theresa" is a late ripening Hungarian table grape bred from "Eger 2" x "Olympia" and has particularly large berries.  A fungus-tolerant grape for sunny south to west walls without much shade, ie for optimal, sheltered Position. Moderately suitable as staked freestanding plant (ie without a wall) and for pergola greening in a sunny position, sheltered from wind, up to about 150m altitude. On house façades even up to 350m altitude. Due to the late ripening, wasp attack is hardly a problem, hence this grape is optimal for busy pedestrian areas such as house entrances!

Grapes

from 2nd or 3rd year, very large, 20-30cm long, loosely branched, an absolute "show off" grape "like from the supermarket," the fruit needs strongly initial thinning, which, if necessary, repeated more moderately at a later stage.

Berries

yellow-green to grey-yellow, at full maturity also yellow with a touch of pink, ellipsoidal, approx. 2.0 to 3.0cm, tartish-sweet to very fruity and sweet, taste improves continuously during the long ripening process. Very few pips.

Ripeness for consumption

late, from mid-September, occasionally until November, the fruit can and should remain on the canes for a long time to reach full ripeness. Occasionally it is necessary to thin out the grapes to one bunch per cane, combined with a uniform pre-harvest as soon as they are ready to eat. This will ensure that the remaining grapes can ripen better and also promotes lignification of the canes.

SPECIAL NOTES

this grape is fruiting better (especially in the first years) with Rod Pruning or Cane Pruning, which needs to be considered in the trellis design. In the first  years this grapevine tends to overcrop (too much fruit set), which necessitates thorough thinning. Due to the late maturity, plants may be susceptible to heat stress or "sunburn" and the associated berry wilting during early summer, especially if the weather changes suddenly to intense solar radiation and high temperatures. At such times, additional watering may be helpful. In addition, canopy thinning around the grapes - if at all - should be carried out in late summer, not all at once, but gradually at 2-3 intervals. In late summer, some berries tend to split after watering during the ripening process, hence the vines must not be watered as from August.

 

NOTE: "Theresa" is a registered variety, propagation is prohibited.