'Midnight Masquerade' Beardtongue Penstemon hybrid

I LOVE proven winners plants and this plant. The purple foliage, shape and flowers drew me to them immediately. We’re on a tight budget so I planted two last year and two this year. Unfortunately, this spring when last years plants came up they both grew with GREEN foliage. They get full sun. I’m not sure why the foliage grew green and not purple but now I’m worried the new plants will do the same next year. Has anyone had this? Is there anything I can do to fix it bc I still do love these plants but definitely want them to be purple, not green.

Four plants were put in August of last year. They over-wintered beautifully with the foliage showing off during the rainy, but not terribly cold winter months. In the Spring, the plants came to life, grew and produced beautiful foliage and flowers. Unfortunately, here it is July and the stems are flopping over so the center of the plant is exposed. They're still flowering and look healthy, but the plants just look -- odd. They get about six hours of sun each day and they're watered through a drip system several times a week so I'm not sure if it's too much water or not enough sun (even though we've had very warm days we do have coastal morning fog at times)..

I planted this last year, spring, and it grew a little, and bloomed a little. It survived the winter just fine. This year, it has grown into its full-bodied size and is now in its blooming glory. It is sturdy, and gorgeous! I've seen a lot of bumblebees attracted to it, and yes, a hummingbird has been around. I am very pleased, thank you!!!