Answer: It is still too early to give up. The best time to do that type of severe pruning would be very early spring. However, the plants may still be able to sprout from dormant buds along the stems. This can take weeks and even sometimes months as the plants gather energy and "decide" to recover from the shock. Make sure you keep the soil evenly moist (but not sopping wet) during the recovery period if natural rain does not.
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