
Brown-Eyed Susan Reference Table
Common Name | Brown-Eyed Susan, Brown Eyed Susan, Thre ... |
Scientific name | Rudbeckia triloba |
Bloom Time | June-October |
Bloom Duration | 2-3 months depending on zone |
Color | Yellow |
Do Brown-Eyed Susans bloom all summer?
The brown-eyed susan, a member of the aster family, is a prolific late summer wildflower loved by pollinators....A colorful late summer wildflower.Botanical NameRudbeckia trilobaSoil pHSlightly acidicBloom TimeMid to late summer, often blooms until fallFlower ColorBright yellowHardiness Zones3 through 10 (USDA)6 more rows•Jul 23, 2021
How long do Brown-Eyed Susans last?
2-3 yearsBrown-Eyed Susan Physical Description It is short-lived, only 2-3 years (typically).
Do Brown-Eyed Susans come back every year?
Some Black Eyed Susans are annuals, whereas others are perennials or biennials. Perennials, such as the popular Sweet Coneflower, will make an appearance year after year. Annuals can be planted each season, but they may pop up on their own after leaving seeds behind in the fall.
How long do black-eyed Susans stay in bloom?
Quick Reference Growing ChartPlant Type:Short-lived flowering perennial, often grown as annualYellow, orange, redHardiness (USDA Zone):3-9Drought, rocky soils, deerBloom Time / Season:June to SeptemberRich and fertileExposure:Full sunPrefers 6.8-7.7Time to Maturity:60 daysWell-draining8 more rows•Feb 4, 2020
Should Brown Eyed Susans be cut back in the fall?
Black-Eyed Susan Pruning Once the flowering season is past, cut the remaining stalks to a height of about 2 inches above the soil. After the first fall frost, the entire plant can be cut to the soil line. During the winter season, birds feed on the seed heads. Leave a few behind to sustain the wildlife.
What's the difference between black eyed Susans and brown eyed Susan?
Rudbeckia hirta (Black-eyed susan) is often called Brown-eyed susan. Two common names for the same species.
How do you winterize Brown Eyed Susans?
Steps To Care For Black-Eyed Susan in WinterStep 1 - Cut back dead and dying top growth in the fall.Step 2 - Mulch with organic compost or shredded leaves around the base of the plant.Step 3 - Leave the seed heads up for birds and other wildlife if you garden in a warmer growing zone.More items...
What do you do with Brown Eyed Susans in the fall?
For Rudbeckias with multiple flowers on a stem, just snip off the spent blooms. In autumn, cut Black Eyed Susan back to about 4” tall (10 cm.) or, if you wouldn't mind a few more Black Eyed Susan plants, let the last blooms go to seed for the birds. The seed heads can also be cut and dried to propagate new plants.
How do you keep black-eyed Susans blooming?
Black eyed Susan care will often include deadheading the spent blooms of the flower. Deadheading encourages more blooms and a sturdier, more compact plant. It also can stop or slow the spread of the black eyed Susan flower, as seeds are contained in the blooms.
What is the longest blooming perennial?
20 Longest Blooming Perennial Flowers For Everlasting BeautyCatmint (Nepeta racemosa) ... Coneflower (Echinacea purpurea) ... Coreopsis 'Moonbeam' (Coreopsis verticillata 'Moonbeam') ... Geranium 'Rozanne'/ Cranesbill (Geranium 'Gerwat' Rozanne) ... Ice Plant (Delosperma cooperi) ... Lavender (Lavandula angustifolia)More items...•
Do black-eyed Susans last all summer?
Low-maintenance and lovely, black-eyed Susan flowers start opening in early summer and keep on coming until fall frost. Most black-eyed Susan plants are perennial, although some are short-lived at best.
Do black-eyed Susans reseed themselves?
If you don't cut down the seed heads, annual black-eyed Susans will reseed themselves and pop up in delightfully unexpected spots next year. Depending on the variety, perennial black-eyed Susans will thrive in USDA growing zones 3 to 9 (with most cultivars happiest in zones 4 to 7).
What do you do with Brown Eyed Susans in the fall?
For Rudbeckias with multiple flowers on a stem, just snip off the spent blooms. In autumn, cut Black Eyed Susan back to about 4” tall (10 cm.) or, if you wouldn't mind a few more Black Eyed Susan plants, let the last blooms go to seed for the birds. The seed heads can also be cut and dried to propagate new plants.
How do you winterize Brown Eyed Susans?
Steps To Care For Black-Eyed Susan in WinterStep 1 - Cut back dead and dying top growth in the fall.Step 2 - Mulch with organic compost or shredded leaves around the base of the plant.Step 3 - Leave the seed heads up for birds and other wildlife if you garden in a warmer growing zone.More items...
Do black-eyed Susans only bloom once?
To extend the blooming season, cut some black-eyed Susan stems back by a third in early summer. The ones you cut back will bloom after the ones you didn't cut back, so you'll get to enjoy the flowers for a longer period of time.
Do black-eyed Susans last all summer?
Low-maintenance and lovely, black-eyed Susan flowers start opening in early summer and keep on coming until fall frost. Most black-eyed Susan plants are perennial, although some are short-lived at best.
How tall does a brown eyed Susan grow?
It can be a great choice for an isolated area or wildflower meadow/micro prairie. Although most references say that Brown-Eyed Susan will grow 2-4′ tall, I’ve personally grown an 8 foot tall (2.5 m) specimen.
What are the roots of a brown eyed Susan?
Roots of Brown Eyed Susan are shallow. The roots of Brown-Eyed Susan are fibrous.
How long does it take for a sage plant to bloom?
Each flower is 1-2″ diameter (2.5- 5 cm). This plant will bloom up to 3 months, with other random blooms still occurring long after the primary showy period has ended.
What color are the stalks of a sage?
Stalks will be red to green with small hairs. It will branch frequently at the leaves on the central stalk.
Is brown eyed Susan a wildflower?
Brown Eyed Susan is a native yellow wildflower that can be adapted to gardens. As a member of the Rudbeckia family, it is closely related to common Black Eyed Susans. However, this species differs in several key ways, and can spread quite rapidly without competition.
Where is brown eye Susan invasive?
In fact Brown-Eyed Susan has been recorded as becoming invasive in certain parts of Eastern Europe.
Can you save black eyed Susan seeds?
Saving seeds from Black Eyed Susan (or any Rudbeckia) is easy and economical. My method for harvesting the seeds is different from all others, as it removes nearly 100% of … Continue reading
What is a brown eyed Susan?
The Brown-Eyed Susan, otherwise known as the Rudbeckia Triloba, Black-Eyed Susan, Native Black-Eyed Susan, Thin-Leaved Rudbeckia, Thin-Leaf Coneflower or Branched Coneflower, is a very popular perennial plant native to the Rocky Mountains, Northeast, Southeast, and the Southwest of the United States.
When does the Black Eyed Susan die?
Being a herbaceous plant, the Black-Eyed Susan will die back to the ground every year. But, you can expect it to have its ‘prime-time’ during the summer (mid, late), and during the fall.
What is the name of the black eyed Susan?
In botanical terms, the Black-Eyed Susan belongs to the Asteraceae family, the genus Rudbeckia and the species Triloba, hence its scientific (or botanical) name Rudbeckia Triloba .
How big are Rudbeckia triloba leaves?
In particular, they have an alternate organization in its leaves. You can expect the leaves from your Rudbeckia Triloba to be around (3-6 inches) in size.
How big can Rudbeckia grow?
The Rudbeckia Triloba can grow up to 2′ – 3′ (60cm – 90cm) in 2′ – 3′ (60cm – 90cm) and 1′ – 2′ (30cm – 60cm) in 1′ – 2′ (30cm – 60cm).
What test do you use to test a black eyed Susan?
In our experience, the famous ‘thumb’ or ‘finger’ test is what works best for the Black-Eyed Susan since with it, you will be able to give it the right amount of water, every time – regardless of the environment or placement where you do decide to keep it.
What color are the leaves of a sage plant?
Best known for its low maintenance and fast growth, this perennial will likely liven up your house (or garden) with its dark green colored leaves. But, only if you learn how to take proper care of it for it to thrive.
How to extend the blooming period of black eyed Susan?
To extend your flowering period, pinch off the spent blooms at the base of the stem. You can also cut back the stem of the black-eyed Susans after they flower. This encourages a second surge of blooms later in the fall. Pinching, also known as deadheading which not only encourages more blooms but a sturdy compact plant.
When will black eyed Susans bloom in 2021?
On April 16, 2021 In Flowers, Gardening Guides. When do black-eyed Susans bloom and how long their blooms do last are questions that most gardeners seek for answers without finding. Black-eyed Susans (Rudbeckia hirta ) is named that because of her dark central cone that is surrounded by brightly colored petal-like rays.
How big do yellow daisies get?
It produces bright yellow daisies that are accented with a dark brown cone. These daisies are 3 to 4 inches in diameter and bloom from mid-summer to fall. It grows up to 2 feet tall in hardy zones that are 4-9.
What is the color of the black eyed Susan?
Indian Summer Black-eyed Susan (Rudbeckia Hirta) Indian summer produces bright golden flowers and hairy foliage that grows up to 3 feet tall. It blooms from summer to frost and thrives in zones 3-7. This variety commonly grows as annuals.
How big does a sage bush get?
This is a North American native biennial that has clusters of small yellow flowers in autumn and summer. This variety grows up to 5 feet tall and 3 feet wide. It does best in zones 4-7 across the United States.
How big do black eye plants get?
These plants grow to over 3 feet tall with 6-inch leaves, 8 inches long stalks, and 2 to 3 inches flower diameter.
When do annuals bloom?
The annuals bloom throughout summer and die during winter. The cycle begins again in spring with the seeds germinating and continues to bloom in summer. The annuals include varieties like Clasping Sunflower (Rudbeckia amplexicaulis)

Brown-Eyed Susan Facts
Brown-Eyed Susan Physical Description
- In the wild you can find Brown-Eyed Susan growing from 2-4′ tall, and being somewhat bushy. It is short-lived, only 2-3 years (typically).
Growing Conditions
- Brown-Eyed Susan will grow best in Full to Partial Sun and well drained soil. It prefers loamy soil that drains well, and can be adapted to sand-loam or clay-loam, as long as it drains. Although Brown-Eyed Susan can survive an occasional drought, it is not recommended. The foliage may drop/dry up during drought, and the growth of the plant will be negatively impacted.
Purchase Seed
- We have ordered a variety of native flower seeds from Everwilde Farms, which you can order right from Amazon through our link on our RECOMMENDED PRODUCTS PAGE. (We may earn a small commission when you purchase through our links, at no cost to you. This helps support our website.)
Garden Uses
- Due to its potentially large size and self-seeding nature, this is best grown in an isolated area, or near significant competition. It also is a great candidate to plant in an established wildflower meadow, open woods, or micro-prairie.
Fauna Associations For Brown-Eyed Susan
- Many bees will pollinate Brown-Eyed Susan, although the plant can self-pollinate. But you will see everything from large bumble-bees to smaller leaf-cutter bees and pollinating flies. Additionally, medium/small butterflies will visit Brown-Eyed Susan flowers. There are a large number and variety of insects that will also consumer the foliage and blooms, making it a plant of high ecolo…