Toto Gold

Black-eyed Susan

70d to harvest

Sunlit and bold, Toto Gold blooms with a profusion of warm golden rays that glow above a dense, velvety center—an unforgettable, honeyed spectacle in the garden. The flowers carry a softly textured, slightly ruffled look, with deep, dark eyes that make each head feel richly dimensional. Grow Toto Gold for long-lasting color in beds and borders, and enjoy its striking presence as a perennial-style biennial showpiece through the warm season.

Crop Dates

Milestone	Date
Start Indoors	Apr 14th
Last Frost	May 19th
Transplant / Sow Outdoors	Jul 14th
Harvest Begins	Sep 22nd
Harvest Ends	Sep 21st

Crop Details

Trait	Value
Days to Maturity	70
Sun Requirements	Full Sun
Growth Habit	Upright
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	45
Min Night Temp (°F)	40
Harden Off (days)	7

Frequently Asked Questions

What pest or disease most commonly affects Rudbeckia hirta (Black-eyed Susan) and what should I do?

A common issue is powdery mildew, which shows up as a white, dusty coating on Rudbeckia hirta leaves during warm, humid stretches. Improve airflow by spacing plants well and water at the base so foliage stays drier; if you see early spread, remove the worst leaves and apply a labeled fungicide for powdery mildew on ornamentals according to the label. Keep an eye for leaf-chewing insects like Japanese beetles and hand-pick in the morning if they appear.

How often should I water Rudbeckia hirta during peak growth?

During the main growing phase, keep the top 1–2 inches of soil lightly moist, then allow it to dry slightly before watering again—typically about 1 inch of water per week depending on heat and rainfall. Water deeply at the base rather than misting the plant to avoid encouraging mildew on the foliage. Once established, Rudbeckia hirta tolerates short dry spells, but prolonged dryness can reduce bloom quality.

How do I know when Toto Gold Rudbeckia hirta is ready to harvest for cut flowers or seeds?

For cut flowers, harvest when the central cone is firm and the ray petals are fully open and fresh—this is usually around day 70 when plants start reliably blooming. For seeds, leave the spent flower heads on the plant until the cones turn brown and dry; the ray petals should be withered and seeds should feel hard. Cut the heads on a dry day and let them finish drying indoors before storing.