Hydrangea paniculata is the easiest hydrangea to grow. In late summer and autumn, this rugged shrub produces fluffy clusters of white flowers that fade to shades of pink and green. Many cultivars, such as 'Tardiva', can be successfully trained into a standard, or miniature tree form -- perfect for a large container or just about any landscape spot. Name: Hydrangea paniculata Growing Conditions: Full sun or part shade and well-drained soil Size: To 10 feet tall and wide Zones: 4-8/
Wilma Goldcrest (Monterey) Cypress | Attractive dwarf evergreen conifer has a tight, columnar habit, reaching 6' - 8' tall and 1'-2' wide at maturity. Foliage is bright golden with a lemony fragrance. Full sun.
Gooseneck loosestrife Lysimachia clethroides rises to 3 feet tall with stems topped with curved spikes of small white flowers. It is sometimes used as a cut flower. It is very aggressive and can become a nuisance. Zones 4-9 likes moist soil, so I doubt it will spread much in yard, but, will it grow in back window bed?
Yellow Corydalis This hard-working perennial plant that grows in shade takes the prize for being the longest bloomer in the sheltered garden. Enjoy its clusters of yellow flowers from late spring all the way to frost. It's not just the flowers that are beautiful; the gray-green leaves of these shade plants are attractive as well. The plant grows about 12 inches tall and is hardy in Zones 5-8. Test Garden Tip: This plant can be a prolific self-seeder. Top picks: Corydalis lutea is the…