Black Eyed Susan Flower Seeds Rudbeckia Hirta Perennial 100,000 Seeds - 1 ounce

The Gardening World

  • $14.99
    Unit price per 
Shipping calculated at checkout.

This well known wildflower is common in the eastern and Midwestern U.S. It can also be found in mountain meadows of the western U.S. It grows as an annual, biennial or short-lived perennial. Flowers are bright yellow with a distinctive dark center. Makes a good cut flower and is an excellent component of wildflower mixes and pollinator conservation plantings.


Name: Black Eyed Susan
Scientific Name: Rudbeckia Hirta
Color: Yellow petals with black centers
Plant Seeds: Outdoors After Frost / Indoors Weeks Before Last Frost
Plant Height: 12-36"
Plant Spacing: 18 - 24"
Cycle: Perennial
Bloom Season - Fall, Summer
Light Requirements: Full Sun, Partial Shade
Soil & Water Preferences: Average
Other: Attracts bees, birds, & butterflies,


Plant black-eyed Susans when the soil temperature has reached 70°F for best seed germination. In many parts of North America, the planting period is March to May. The flower will flower June to September. Germination takes 7 to 30 days.

Plant seeds in moist, well-drained soil.

These hearty flowers really enjoy the Sun. They prefer full sun, though they’ll grow in partial sun.

Sow by seed in loosely covered soil.

It’s best if soil is fertile (not poor) though they can tolerate tough conditions.

Black-eyed Susans generally grow between 1 and 3 feet tall (though they can grow taller) and can spread between 12 to 18 inches, so plant seeds closer to prevent lots of spreading or plant further apart to make a nice border.


Check your plants regularly to see if they need watering. Make sure they don’t dry out.

Divide perennial types every 3 to 4 years to ensure healthy plants and to prevent excessive spreading.

Be sure to remove faded/dead flowers to prolong blooming.

You can cut back black-eyed Susans after they flower and a second, smaller bloom may occur in late fall.

All multiple orders of the same seed are put in the same bag. For example if you order 500 beefsteak tomato seeds x 3 then 1500 seeds will be put in the same bag. We do not send out 3 individual bags with 500 in each. This goes for all seeds unless they are listings of different seeds.


If you can’t find germinating and instructions online you can find them on the item page. Our goal is to save money everywhere we can so we can pass those savings on to you.

We Also Recommend