| Description | Rudbeckia Goldstrum (Rudbeckia fulgida var sullivantii) is one of the best perennials for its length of bloom and perenniablity. Grows best in full sun but tolerates a little shade. |
|---|---|
| Pronunciation | (rud-BEK-ee-ah)(FULL-jih-dah) variety (sul-ih-VAN-tee-eye) |
| Plant Type | Perennials Hardy, Site author's observations |
| Hardiness Zone | 4 |
| Sunlight | full sun is best, tolerates some shade |
| Moisture | average, never very dry, some extra moisture during very dry periods |
| Soil & Site | average |
| Flowers | 3" Black Eyed Susan flowers are produced by the hundreds in mid July through September. |
| Fruit | achene |
| Leaves | basal leaves are coarse, becomes sparser up the stem. |
| Dimensions | 30-36" tall, will form large clumps |
| Maintenance | Cut off dead flower stalks after they are done blooming and divided when the clump gets to large. In some gardens I maintain I will take a flat blade shovel and remove a 6" ring of plant material from around the edge of the clump to control the spread. Will reseed around the garden if flowers are not deadheaded |
| Propagation | dividing small divisions from the mother clump, also from seed |
| Native Site | Native to North America |
| Cultivar Origin | Discovered by Heinrich Hageman in 1937, growing in the Gebrueder Schuetz' nursery in the Czech Republic. First commercially produced by Karl Foerster of Potsdam Germany prior to World War I. |
| Misc Facts | Goldstrum can be translated directly to goldstorm. |
| Author's Notes | Rudbeckia Goldstrum is a work horse in many perennial gardens. Flowers for along period of time and is rather easy to maintain. Only problems, not real drought tolerant and readily reseeds. Also lately this plant has been suffering from a black leaf disease. Newer cultivars are resistant to this. |
| Notes & Reference | #04-Herbaceous Perennial Plants (Allan Armitage), #30-Gardening with Perennials Month by Month (Joseph Hudak) |
Cart
