I don’t know maybe . That’s another cultivar of English lavender so it will be very similar if not exact.
You could check the nurseries around you and see what varieties they grow. Even if the cultivar is a little different they will still look nice together. Make sure you label the ones you buy so you don’t forget .You will be able to tell if you picked the right cultivar when they flower.
You can grow more plants real easy though.
Cut the stems , strip the bottoms leaves off , cut off the top with the flower and dip it in rooting hormone (if you can’t find rooting hormone dip it in cinnamon ) stick it in a pot of lightweight potting mix with a little extra perlite added to it and a little bit of compost if you have it . The potting soil has to drain well but you need to water it often . It roots easy . You can start a bunch of them in the same pot . As soon as you see roots in the bottom of the pot (look in the drain hole ) divide them into into their own pots or put them in the ground and water them .