|What plants will keep on growing in flower boxes? the boxes are in a semi- sun area, I dont want to keep replacing them.|
|I'd choose perennials rather than annuals and they will last for several years. You didn't say how large the boxes are so I don't know what sizes of plants will fit. Here are some suggestions:
Agastache "Blue Fortune"- Compact habit, 2-3'. Selected for its profusion of long lasting, deep blue flower spikes, that appear from July to September. Fragrant hyssop foliage. Prefers average dry locations. This is a butterfly magnet! Good drainage is needed for all agastache. Aster X frikarti "Moench" is a long blooming (June- Oct.) blue aster that reaches 24-30". Chrysanthemum leucanthemum "Becky"- Long living 30-36" Shasta Daisy. Large white daisies with yellow centers bloom in June and July over sturdy dark green foliage. Sun- Part Shade. Coreopsis vert. "Moonbeam", this 18" thread leaf type has pale yellow flowers all summer long. C. vert. "Zagreb" is another long blooming thread leaf type, this has a more compact habit(15") and clear yellow flowers. Sun. Echinacea purpurea- Coneflowers like sun and average to dry soils. "Magnus- Rose-pink form(3?). "Bright Star"- This 2-3' long lived perennial has rose-pink daisy-like flowers from July to September. Good butterfly attractor. "White Swan"- A white flowering form of "Bright Star". Hemerocallis- "Happy Returns"- 3 1/2" clear lemon yellow flowers start in mid May and repeat until September. "Pardon Me"- Wine red 2 3/4" flowers start mid-late season and rebloom on 18" scapes. One of the longest blooming daylilies. "Stella D'Oro"- 2 3/4" slightly fragrant golden yellow flowers on a 18" scape, this 16" plant blooms from early mid season on. Sun- part shade. Deer Love it!!! Nepeta- The Catmints bloom all summer and are of no interest to cats. They prefer a well drained, sunny location. N. Walker?s Low"(2?) is a prolific bloomer with bluish purple flowers April to Oct. N. siberica "Souvenir D?Andre Chaudron" is a hardy selection(2-4?) with blue flowers for most of the summer. Rudbeckia- Black-eyed Susans or Coneflowers like sun to part shade areas with good drainage. Rudbeckia fulgida var. fulgida- Smaller flowers than "Goldstrum" but longer blooming, going from mid-July to October. 2-2.5? with shiny green foliage. Rudbeckia fulgida "Goldsturm"- One of the best varieties, large deep yellow daisy-like flowers with a black cone center in July- September on nicely branched 2' plant. Salvia nemerosa "Blue Hill"- True blue flowers from June to September. Compact habit to 15 " and very floriferous. S. N. "Snow Hill"- White form. S. vertcillata "Purple Rain"- This new salvia is covered lush, smoky purple flower spikes from June- Sept.. Reaching 24", it is happy in full sun or part shade. Sedum Most like sun and well drained areas. "Autumn Joy"- Pink rounded flower clusters begin in July and change to red by Sept. and Oct. Loves hot and dry spots(2'-3'). sieboldii-Silver blue scalloped foliage with clusters of light pink flowers in late Sept. and Oct.. Good ground cover for daylilies. spectalibis "Brilliant"- Lavender pink flowers in August and September(2'). Hope you find something you like!