Goldsturm Black-Eyed Susan - 3 Gallon

Goldsturm Black-Eyed Susan (Rudbeckia fulgida var. sullivantii 'Goldsturm') is an upright, clump-forming herbaceous perennial native to the eastern United States. It grows from a spreading rhizomatous root system that slowly expands outward to form dense, tidy mounds. The stiff, branching stems are lightly hairy and bear oblong to lance-shaped, dark green leaves with slightly serrated edges and a noticeably rough, sandpaper-like texture. From midsummer through early fall, the plant is blanketed in daisy-like composite flowers measuring 3 to 4 inches across. Each blossom features 10 to 20 rich golden-yellow ray petals that radiate outward from a raised, prominent dark brownish-black central disk — a contrast that gives the plant its beloved "black-eyed" common name. The flowers are unscented but produce abundant pollen and nectar. Introduced in 1937, 'Goldsturm' has been a garden staple for nearly a century, and it remains one of the best-selling and most-planted perennials in North America.

'Goldsturm' is hardy in USDA Zones 3 through 9, making it suitable for an exceptionally broad range of climates — from cold northern winters to hot, humid, or dry summers. It performs with exceptional reliability in Zones 4 through 8. In Southern Oregon and Northern California, it thrives in the mild, Mediterranean-influenced climates typical of the region, tolerating hot dry summers once established and handling the cooler winters with ease. It also tolerates urban conditions including reflected heat from pavement and buildings. Plants go fully dormant in winter and reliably re-emerge from the roots in spring.

'Goldsturm' performs best and produces the most abundant blooms when grown in full sun — a minimum of 6 hours of direct sunlight per day is ideal. It will tolerate partial shade (4 to 6 hours of sun), but flowering will be noticeably reduced and plants may develop a slightly leggier, less compact growth habit in lower-light conditions. In hot inland climates, a location with morning sun and light afternoon shade can help moderate heat stress during peak summer. Avoid deeply shaded locations, as poor light significantly diminishes the plant's flowering potential and can weaken its overall vigor.

'Goldsturm' is notably adaptable when it comes to soil and is one of the more forgiving perennials for less-than-ideal soil conditions. It performs well in:

• Loam, clay, chalky, or rocky soils
• Moderately fertile to lean soils — overly rich soil encourages leafy growth at the expense of flowers
• Well-drained to moist, well-drained soil conditions
• A wide pH range of approximately 5.5 to 7.5 (acidic to slightly alkaline)

Amending planting beds with compost at the time of planting improves soil structure and moisture retention, which is beneficial during the plant's establishment period. Standing water and chronically poorly drained soils should be avoided, as 'Goldsturm' does not tolerate waterlogged conditions. Once established, it also performs admirably in dry or rocky soils.

During the first growing season after planting, water regularly to keep the soil evenly moist and help the root system establish — approximately once or twice per week depending on temperatures and rainfall, for the first 4 to 8 weeks. Once established, 'Goldsturm' becomes quite drought tolerant and requires only moderate supplemental watering. Interestingly, mild drought stress can actually encourage more prolific flowering. Key watering guidelines include:

• Water deeply and infrequently rather than shallowly and frequently to encourage deep root development.
• During extended summer droughts, provide supplemental irrigation to maintain plant health and bloom quality.
• Avoid overhead watering when possible — wet foliage, especially in the evening, can promote fungal diseases such as powdery mildew and leaf spot.
• Do not allow plants to sit in waterlogged or poorly draining soil at any time.
• Apply 2 to 3 inches of organic mulch around plants to conserve soil moisture, moderate soil temperature, and reduce watering frequency.

'Goldsturm' is a naturally undemanding feeder that performs well in average garden soils without heavy fertilization. Over-fertilizing — particularly with high-nitrogen fertilizers — produces lush, excessive foliage at the expense of flowers. General fertilizing guidelines:

• Apply a balanced slow-release granular fertilizer (such as a 10-10-10 or similar) in early spring just as new growth emerges, at a rate of approximately 1 to 2 pounds per 100 square feet.
• If using liquid fertilizers, dilute to about 1 tablespoon per gallon of water and apply every 4 to 6 weeks during the active growing season.
• In mid-season, a light application with slightly elevated phosphorus supports continued bloom production.
• Reduce or eliminate nitrogen fertilization as summer transitions to fall to allow the plant to harden off properly for dormancy.
• A top-dressing of compost in spring is often sufficient for plants growing in reasonably fertile garden soil and is an excellent low-input alternative to synthetic fertilizers.
• Watch for yellowing foliage (possible nitrogen deficiency), poor bloom set (possible phosphorus deficiency), or stunted growth (possible potassium deficiency) as indicators that fertilization may be beneficial.

'Goldsturm' is a genuinely low-maintenance perennial, but a few simple practices will keep plants looking their best and blooming prolifically season after season.

• Deadheading: Removing spent flowers promptly throughout the bloom season encourages the plant to continue setting new buds and extends the overall bloom period. It also prevents excessive self-seeding if that is a concern.
• Late-season seedheads: If desired, allow some flowers to go to seed in late fall. The dried seedheads provide valuable winter food for finches and other seed-eating birds and add textural interest to the winter garden.
• Fall cutback: Stems can be cut back to 3 to 4 inches above the ground in late fall after the first hard frost, or left standing through winter for wildlife value and then trimmed in early spring before new growth emerges.
• Spring cleanup: Remove any remaining dead stems and foliage in late winter or early spring to make room for the emerging new growth.
• Division: Divide crowded clumps every 3 to 4 years to maintain vigor, improve air circulation, and increase flower production. See the Division and Propagation tab for details.
• Staking: Generally not needed. Stems are stiff and self-supporting under normal conditions, though plants in partial shade or overly rich soil may benefit from light support.

1. Timing: Plant in spring after the last frost date or in early fall at least 6 weeks before the first expected frost to allow roots to establish before cold weather arrives.
2. Site selection: Choose a location with full sun (6 or more hours daily) and well-drained to moderately moist soil. Avoid areas with standing water or deep shade.
3. Soil preparation: Loosen the soil to a depth of 12 to 15 inches and work in a 2- to 3-inch layer of compost to improve drainage, fertility, and moisture retention as needed.
4. Planting depth: Dig a hole approximately twice the width of the root ball and equal in depth. Set the plant so that the top of the root ball is level with the surrounding soil surface — do not plant too deeply, as this can cause crown rot.
5. Spacing: Space plants 18 to 24 inches apart to allow for mature spread and good air circulation.
6. Backfill and water: Fill in around the root ball with native soil, firm gently to eliminate air pockets, and water thoroughly to settle the roots.
7. Mulch: Apply 2 to 3 inches of organic mulch (shredded bark, wood chips, or compost) over the root zone, keeping mulch a few inches away from the plant crown to prevent rot.
8. Aftercare: Water regularly during the first 4 to 8 weeks until the plant is well established. After that, supplemental watering is needed only during extended dry periods.

'Goldsturm' is one of the most versatile perennials available, suiting a wide range of garden styles and planting situations:

• Perennial borders: A classic choice for the middle ground of sunny mixed or perennial borders, providing bold late-season color when many spring bloomers have finished.
• Mass plantings and drifts: Particularly spectacular when planted in large groups of 5 or more for a sweeping, naturalistic effect.
• Cottage and informal gardens: Its cheerful, casual aesthetic fits perfectly in cottage-style plantings.
• Prairie and meadow gardens: Naturalistic plantings that mimic the plant's native habitat — combine with ornamental grasses, echinacea, and other prairie natives.
• Cutting gardens: An excellent source of fresh-cut stems for arrangements, with a vase life of 10 to 14 days when cut in early morning as buds are just opening.
• Pollinator gardens: A top choice for attracting butterflies, bees, and other beneficial insects throughout summer and fall.
• Rain gardens: Tolerates occasional wet conditions and is recommended for use in rain garden applications.
• Containers: Can be grown in large containers on patios and decks; ensure the container has adequate drainage and monitor moisture more closely than in-ground plants.
• Slopes and erosion-prone areas: The spreading rhizomatous root system helps stabilize soil on gentle slopes.

The warm golden tones of 'Goldsturm' blend beautifully with a wide palette of garden companions. Choose plants with similar sun and water requirements for the most harmonious and low-maintenance combinations:

• Hot color combinations: Crocosmia, Helenium (Sneezeweed), Kniphofia (Red Hot Poker), Gaillardia (Blanket Flower), Daylilies, and Dahlias
• Cool contrast combinations: Russian Sage (Perovskia), Salvia, Veronica, Aster, and Agastache — the blues and purples provide striking contrast to the golden yellow flowers
• Prairie and meadow style: Echinacea (Coneflower), Monarda (Bee Balm), Ornamental Grasses (Miscanthus, Pennisetum, Panicum), Yarrow, and Penstemon
• Texture and foliage contrast: Lamb's Ear (Stachys), Sedum, and ornamental fountain grasses provide excellent foliar contrast to 'Goldsturm's' bold blooms
• Late season partnerships: Pair with New York Asters (Symphyotrichum), Solidago (Goldenrod), and ornamental grasses for a spectacular fall display

'Goldsturm' is best propagated by division rather than seed, as plants grown from seed may not be true to the cultivar's desirable characteristics. Division also keeps established plants vigorous and free-flowering.

• When to divide: Every 3 to 4 years, or sooner if the center of the clump begins to die out, bloom production declines, or plants appear overcrowded. The best times are early spring (as new shoots emerge but before flower buds form) or early fall (at least 4 to 6 weeks before the first frost).
• How to divide: Water the plant deeply the day before dividing. Using a sharp spade or garden fork, dig 6 to 8 inches out from the crown to avoid damaging roots, then lift the entire clump. Pull or cut the clump apart into sections, each with several healthy shoots and a strong root system attached. Replant divisions at the same soil depth they were originally growing, spaced 18 to 24 inches apart, water thoroughly, and mulch.
• Self-seeding: If some flowers are allowed to go to seed, 'Goldsturm' will self-sow. Seedlings are generally vigorous but may vary slightly from the parent plant. Persistent deadheading will control self-seeding if it is not desired.

'Goldsturm' is notably disease-resistant and relatively pest-free compared to many perennials, but the following issues can occasionally occur:

• Powdery mildew: A white, powdery fungal coating may appear on foliage during humid conditions or when air circulation is poor. Improve spacing and airflow, avoid overhead watering in the evening, and apply sulfur dust or neem oil if needed.
• Angular leaf spot (bacterial): This is the most common disease issue specific to 'Goldsturm,' causing brown or black angular spots on leaves that can expand and blacken entire leaves. Infection typically begins on lower foliage and moves upward. Remove and dispose of affected leaves; avoid wetting foliage.
• Septoria leaf spot: A fungal disease that causes small spots on foliage, often during warm, wet weather. Remove affected foliage, improve air circulation, and avoid overhead irrigation.
• Aphids: These soft-bodied insects may cluster on new growth, especially during dry, stressful conditions. Knock them off with a strong stream of water, or treat with insecticidal soap. Encourage beneficial insects such as ladybugs, which prey on aphids naturally.
• Japanese beetles: Hand-pick in early morning when beetles are sluggish; neem oil can also be used as a deterrent.
• Spider mites: May appear during hot, dry spells. Increase irrigation and use insecticidal soap or neem oil if populations are high.

The best prevention for most disease issues is good garden sanitation, proper spacing for air circulation, and avoiding overhead watering. Dividing overcrowded clumps every few years also significantly reduces disease pressure.

'Goldsturm' is an outstanding garden plant for supporting local wildlife, particularly pollinators and birds:

• Butterflies: The large, open flowers are highly attractive to a wide variety of butterfly species, which feed on the abundant nectar through summer and fall.
• Bees: Both honeybees and native bees, including bumblebees and solitary ground-nesting bees, are frequent visitors to the flowers, drawn by the rich pollen and nectar supply.
• Other pollinators: Various hoverflies and other beneficial insects also frequent the blooms.
• Birds: As the season winds down and flowers are allowed to go to seed, the dried seedheads become a valuable food source for finches (particularly goldfinches), chickadees, and other seed-eating birds through fall and winter. Leaving stems standing through winter provides this wildlife benefit while also adding garden structure.
• Deer and rabbit resistance: The rough, hairy texture of the foliage and stems makes 'Goldsturm' generally unpalatable to deer and rabbits, making it a reliable choice in gardens where browsing animals are a concern.

'Goldsturm' Black-Eyed Susan is a superb cut flower that adds bold, long-lasting color to fresh arrangements and dries beautifully for use in dried flower crafts.

• Harvesting for fresh arrangements: Cut stems in the early morning when buds are just beginning to open for the longest vase life. Use clean, sharp pruners and make a clean diagonal cut. Remove any leaves that would fall below the water line in the vase.
• Vase life: Properly conditioned stems last 10 to 14 days in a vase. Change the water every 2 to 3 days and recut stem ends every few days to maximize longevity.
• Drying: Flowers and seedheads dry beautifully and retain their form and warm color for many months. Harvest stems for drying just after the flowers have fully opened; hang upside down in small bundles in a warm, dry, well-ventilated location away from direct sunlight.
• Dried arrangements and crafts: Dried stems are excellent in wreaths, winter arrangements, pressed flower projects, and seasonal decorative displays.
• Regular cutting encourages more blooms: Harvesting stems for vase use throughout the season acts as a form of deadheading, encouraging the plant to produce additional flower buds and extending the overall bloom period.