Grow Black-Eyed Susans

How to Grow Black-Eyed Susans At Your Garden

The reliable and low maintenance Black-eyed Susan (Rudbeckia hirta) has become a garden staple. Daisy-like rays of pale yellow petals and a dark central disc rise above broad oval green leaves with a rough texture. This wildflower is native to the central United States and grows in natural areas and roadsides in the Midwest. Its self-seeding ability makes it a great choice for lush wildflower gardens. You can plant it after the last frost in spring. It blooms in the first summer, although it may take two to three years to reach its full height.

There is a lot of diversity in the coneflower genus, and most species are true workhorses with few problems. The fast-growing black-eyed Susan is arguably the most famous of coneflowers, with its daisy-like flowers bearing large seed heads. It also has the characteristic scratchy hairy leaves of its genus (which may not be one of its best features, but it helps keep pests out).

How to Grow a Black-eyed Susans. An easy cottage garden favorite that will self-seek during the summer heat and fill your garden with beautiful, long-lasting blooms. Read our article below.

Types of Black-eyed Susans

There are several excellent varieties of Black-eyed Susan, including:

Rudbeckia hirta ‘Becky’: a compact dwarf variety

Rudbeckia hirta ‘Maya’: similar to the great marigold

Rudbeckia hirta ‘Cherry Brandy’ with red to maroon flowers around a dark central cone.

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Rudbeckia hirta ‘Cherokee Sunset’: Double and semi-double flowers in shades of yellow, orange, red, bronze and mahogany.

Rudbeckia hirta ‘Indian Summer’: produces large yellow flowers, 3 to 4 feet tall.

Rudbeckia hirta ‘Toto Rustic’: Shows fall shades; also golden ‘Toto’ and pale ‘Toto Lemon’; both grow to 1 foot tall
spread.

Propagating

Rudbeckia hirta is a relatively short-lived perennial that may not grow large enough to form large, dense clumps.

However, if it does, it can be divided for propagation:

Lift the entire plant from the ground with a shovel. Use scissors or a shovel to divide it into two or more pieces.
Replant each section in its new location and keep it well watered until after a few weeks you start to see new growth.

Since black-eyed susans are easy to reseed on their own, your flower bed will likely automatically grow new plants next year.

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How to Grow Black-Eyed Susans From Seed

To start the growing season early, start black-eyed susans indoors about six to eight weeks before the last expected frost. Plant seeds 1/4 inch deep in trays or pots of moist seed starter mix. Perennial varieties germinate best if the seed trays are placed in a refrigerator or similar cold place for four weeks after planting. Afterwards, soil temperatures need to be warm for germination, so place seed trays or pots on a heating pad or in a warm place like the top of the refrigerator or a table above a cooling vent. Seeds should germinate within 7 to 21 days. Hardening seedlings before planting outdoors.

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Black-eyed Susans can also be sown directly into the garden once daytime temperatures are around 60 degrees. If you don’t want to grow the seeds yourself, you can buy seedlings and plants and transplant them.

How to Grow Black-Eyed Susans At Your Garden
How to Grow Black-Eyed Susans At Your Garden

Common Pests and Plant Diseases

Black-eyed Susan is rarely troubled by serious pests and diseases. Septoria or angular leaf spot are two fungal diseases that cause black spots on leaves and stems. Ensure good air circulation by leaving enough space between plants and avoid getting the leaves wet when watering, as this can spread fungus. Removing infected leaves and throwing them in the trash can help limit spread.

How to Make a Black-Eyed Susan Bloom

Lack of sunlight can result in insufficient flowers. Black-eyed Susan needs full sun to bloom. One way to fix this is to move your plant to another sunny spot, but if it’s a tree or shrub that casts some shade on it, pruning may be enough to let more sunlight through.

Another reason black-eyed susans don’t bloom is too much nitrogen fertilizer, which results in lush foliage but no blooms. If you’re using fertilizer at all (plants often grow well without fertilizer), choose a fertilizer rich in bloom-promoting phosphorus.

Frequently Asked Questions about Black Eyed Susan

Powdery mildew can attack leaves in hot, humid conditions. This can be minimized by planting in full sun and thinning the plants for good air circulation.

Hopefully through the above article of globaltimes-sl.org, you can know more about how to Grow Black-Eyed Susans At Your Garden If you have any questions, please leave a comment so that we can answer as soon as possible.

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