Birch’s Bellflower Birch’s Bellflower Campanula portenschlagiana ‘Birch Hybrid’ Plant Type: Perennial Water Requirements: Medium Drought Tolerant: No Flower Color: Violet Flower Time: Summer Light Requirement: Full Sun to Shade Max Height: 1′ Max Width: 2′ Min Temp (F): 10 California Native: No santaclaritavw2018-02-21T22:38:37-08:00 Share This Story, Choose Your Platform! FacebookXRedditLinkedInWhatsAppTelegramTumblrPinterestVkXingEmail