The wine, which will go on sale next month, comes in red, white and rosé styles, sourced from producers in Spain.
The normal selling price is £3.99 but a three-for-£10 offer will run until the end of November.
Spar wine trading controller Xenia Irwin MW said: “We believe that Falcon Valley will fill a niche for our customers who are looking for something new and exciting without breaking the bank.
“We are extremely pleased with this exclusive new range of wines that we developed specifically with the aim of combining excellent value for money and good quality.
“To be able to create an innovative brand that can retail below £4 and show real quality is increasingly difficult, but with our supply partners we are very proud to have developed Falcon Valley.”