Lychnis chalcedonica Maltese-cross Description If you are looking for an outstanding red to make a statement in your garden, this is the plant to use. Brilliant scarlet blooms in summer. Cut back after blooming. Characteristics Hardiness Zone: 2-9 Light requirements: Sun Height: 3-4' Native: No Sizes & Prices Size: 2 Yr $11.98 Other Information All Maltese Cross Maltese Cross Lychnis a. 'Orange Gnome' Zone: 3-9 Sun HT: 12-15" Maltese-cross Lychnis chalcedonica Zone: 2-9 Sun HT: 3-4'