REVIVING THE LATE SUMMER GARDEN
“The foliage has been losing its freshness through the month of August, and here and there a yellow leaf shows itself like the first gray hair amidst the locks of a beauty who has seen one season too many.”
– Oliver Wendell Holmes

September in the garden can look a little tired after our hot and humid summer. Many plants become leggy and cease to bloom in the excessive heat. We still have quite a long growing season ahead of us, yet it is too early to begin our fall seasonal plantings.
There is a wealth of fall blooming perennials that can be added to our gardens. Some of my favorites include Salvias, Rudbeckia, Firespike, and Cat Whiskers. Cassia is glorious with its vivid bright yellow blooms.
Mums are a great pick me up at the end of summer. Who can resist their cheery bright colors? Placed at the front door they just say “Hi, I’m happy, welcome home.” Mums typically bloom for about (1) month. When purchasing, look for tight blooms, just beginning to open. They generally will decline if rained on heavily. You can deadhead the blooms to keep the plant looking fresh. Mums are perennial and do wonderful planted in a sunny to part sunny site. They will repeat bloom for you several times if you continue to cut them back after each bloom.
I love the look of ornamental grasses in the garden. This is the time of year when they really shine with their plumes billowing in the wind. Everyone always asks what the pink blooming grasses are they see at this time of year. Muhly or Sweet grass is what dots our dunes and graces the landscape.
Many plants can benefit from being cut back this time of year which will result in new growth and re bloom. It is best to leave some leaf growth, so be careful not to cut back to just empty stems. Leave at least six inches of the plant. I like to lightly fertilize again now with an organic slow release granular. These practices will result in giving our plants a fresh start.

The table below will help you decide what plants will be best to revive your tired garden.
PERENNIALS: These plants are great at adding punch to our gardens now. They also can be added permanently for re bloom year after year.
Common Name
Botanical Name |
Habit | Zone | Deer
Resistant |
Description |
Acorus Ogon
Acorus gramineus |
4”-8” | 4-11 | No | Great filler with striped yellow and green foliage. Can handle wet areas. |
Bush Daisy
Europsis pectinatus |
2’-3’ | 9-11 | Yes | Bushy, upright form that thrives in dry soils and attracts butterflies, covered in yellow daisies. |
Cassia
Cassia bicupsularis |
12’ | 8-11 | No | Very vibrant yellow late season blooms |
Gaillardia
Gaillardia grandiflora |
1’- 2’ | 7-10 | Yes | Attracts butterflies, good for cut flowers and drought tolerant. Will tolerate dune plantings. |
Lantana
Lantana |
2’- 6’ | 8-10 | Yes | Hands down, super tough and very easy to grow provided you have full sun and excellent drainage. Attracts butterflies and hummingbirds, deer resistant, salt tolerant, and drought tolerant. Try some of the taller multi-colored varieties. Looks great tin the fall! |
Firespike Odontonema cuspidatum
|
4-5’ | 8-11 | No | Blooms late in the season which is why I like this tall vivid red beauty. Attracts butterflies and hummingbirds, good for cut flowers, and salt tolerant |
Cat Whiskers
Orthosiphon stamineus |
3’-4’ | 9-11 | No | Great late season bloomer available in white or purple. |
Purple Heart
Setcreasea |
15-18” | 7-11 | No | Great purple leafed ground cover type plant. Also great in containers. |
Black-Eyed Susan
Rudbeckia
|
6”- 30” | 4-9 | Yes | ‘laciniata’ is tall variety (5’) that is a show stopper and can handle wet soils. ‘fulgida’ has smaller flowers than most but is a profuse bloomer and very easy to grow. ‘Indian Summer’ has some of the largest and showiest blooms. Attracts butterflies, drought tolerant, and good for cut flowers |
Salvia
Sage |
12”- 36” | 7-10 | Yes | Pest and disease free. Attracts butterflies and hummingbirds, and drought tolerant. ‘Indigo Spires’, coccinea, elegans, guarantica, leucantha, vanhoutteii are all great varieties. ‘Madrensis’ is a late blooming yellow variety that can handle some shade. |
SEASONAL COLOR: Many of these plants are available in the spring and may have faded in our gardens. The growers often have these available again, all fresh and new. They will perform well until it turns cold, generally around Thanksgiving..
Common Name
Botanical Name |
Habit | Zone | Deer
Resistant |
Description |
Begonia
Begonia |
12”-30” | 9-11 | No | Dragonwings are easy to grow and often times will come back in a mild winter. |
Copper Plant
Acalpha wilkesiana |
3’-10’ | 10-11 | Yes | Multicolored and quite dependable. |
Coleus
Solenostemon scutellarioides |
10”-15” | 9-11 | Yes | Numerous foliage colors to choose |
Croton
Codieum |
3’-6’ | 10-11 | No | Very tough and great in pots. The quintessential fall color plant. |
Dusty Miller
Senecio cineraria |
10”-12” | 8-11 | Yes | Silver accent. |
Marigold
Tagetes erecta |
7”-10” | 9-11 | Yes | Very dependable and bright. |
Ornamental Pepper
Capsicum annuum |
8”-18” | 9-11 | No | Colorful peppers, attractive foliage, easy and very colorful. |
Petunia
Petunia x hybrida |
6”-10” | 7-10 | No | Wave and Bedding Series. Will survive our winter and re bloom heavy in the spring. |
Persian Shield
Strobilanthes |
4’-5’ | 8-11 | No | Purple and iridescent, striking in the shade. |
Tecoma
Tecoma stans |
4’-8’ | 7-11 | Yes | Orange Jubilee or Yellow Bells. Great late season bloom. |
Zinnia
Zinnia angustifolia |
15”-20” | 9-11 | No | Profusion and Zahara series are best for a late summer addition. |
ORNAMENTAL GRASSES:
Common Name
Botanical Name |
Habit | Zone | Deer
Resistant |
Description |
Carex Evergold
Carex oshimensis |
10”-12” | 5-9 | Yes | Great for brightening up a shady area. |
Maiden Grass
Miscanthus sinensis |
3’-4’
or 6-8’ |
4-9 | Yes | Varieties such as ‘Adagio’, ‘Arabesque’, ‘Strictus’, ‘Yaku Jima’, ‘Gracilimus’ perform well here |
Muhly Grass
Muhlenbergia capillaries |
3’-4’ | 6-9 | Yes | Blooms pink in the fall, very striking. |
Fountain Grass
Pennisetum alopecuroides |
3’-4’ | 6-9 | Yes | Very graceful and dependable |
Fountain Grass Variagated
Pennisetum setaceum |
3-4’ | 9-11 | Yes | Varieties such as ‘Fireworks’, ‘Rubrum’, and “Vertigo’ are quite showy. A new favorite of mine this year is ‘Princess Molly’ |