Optimal pH Levels for Non-Woody Perennials

Non-Woody Perennials (pH 4.5 to 6.0)

1. Bleeding Heart (Dicentra): 5.5-6.0
2. Ferns (Most Types): 4.5-6.0
3. Astilbe: 5.5-6.5
4. Primrose (Primula): 5.5-6.5

Non-Woody Perennials (pH 5.5 to 7.0)

1. Bee Balm (Monarda): 5.5-7.0
2. Black-Eyed Susan (Rudbeckia): 5.5-7.0
3. Coreopsis: 5.5-7.0
4. Daylily (Hemerocallis): 6.0-7.0
5. Hosta: 5.5-7.5
6. Iris: 5.8-7.0
7. Peony: 6.0-7.0
8. Phlox: 6.0-7.0
9. Salvia: 5.5-7.0
10. Shasta Daisy (Leucanthemum x superbum): 5.5-7.0
11. Veronica (Speedwell): 6.0-7.0
12. Yarrow (Achillea): 5.5-7.0
13. Columbine (Aquilegia): 6.0-7.0
14. Lungwort (Pulmonaria): 6.0-7.0

Non-Woody Perennials (pH 6.5 to 8.0)

1. Lavender: 6.5-7.5
2. Russian Sage (Perovskia atriplicifolia): 6.5-7.5
3. Sedum (Stonecrop): 6.0-8.0
4. Thyme: 6.0-8.0

Non-Woody Perennials (pH 5.5 to 7.5)

1. Aster: 5.5-7.5
2. Echinacea (Coneflower): 5.5-7.5
3. Lily of the Valley (Convallaria majalis): 5.5-7.5
4. Lupine: 5.5-7.5
5. Nepeta (Catmint): 5.5-7.5
6. Hellebore (Helleborus): 6.0-7.5
7. Brunnera: 5.5-7.0
8. Gaillardia (Blanket Flower): 6.0-7.5

Notes:

• Regular soil testing and amendments can help you maintain the optimal pH range for your perennials.
• Some perennials can tolerate a wider pH range, making them more adaptable to different soil conditions.
• It’s important to consider both the pH preference and the specific growing conditions (such as sunlight, moisture, and soil type) to ensure the best growth and health of your perennials.