Rudbeckia (Black-Eyed Susan)
Native and very easy to naturalize. All have yellow daisy-like flowers with dark cone-shaped centers. Excellent for mass color display in the sunny border.
| Growing Temperature: | 65-70° F days
60-65° F nights |
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| Soil pH: | 5.8-6.5 |
| Fertility: | Feed with a constant liquid fertilization program with every irrigation. |
| Pests and Diseases: | Aphids, sawflies, whiteflies, thrips, beetles, plant bugs, stalk borers, aster leafhopper.
Rot, leaf spots, bacterial blight, Botrytis blight, aster yellows, downy mildew |
| Potting and Timing: | Rudbeckia can be planted any time throughout the growing season. |
| Moisture: | Average to moderate moisture needs. As plant matures, water needs will become more frequent. Water pot thoroughly but allow to dry slightly between irrigations. |
| Planting Level: | Plant plugs even with soil surface. |
| PGRs/Pinching: | PGRs may be beneficial. |
| Lighting: | Requires long days to flower. |
72 Cell - Planting Instructions
| Container: | Late spring to late summer. |
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| When to Plant: | 7-10 weeks. |
| Finish: |
3" Plug - Planting Instructions
| Container: | 1 or 2 gallon. |
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| When to Plant: | Spring to late summer. |
| Finish: | 6-8 weeks 1 gallon, 8-10 weeks 2 gallon. |
50 Cell - Planting Instructions
| Container: | 1 gallon. |
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| When to Plant: | Late spring or summer. |
| Finish: | 8-10 weeks. |
