Optimal pH Levels for Non-Woody Annuals

Non-Woody Annuals (pH 4.5 to 6.0)

1. Begonia: 5.5-6.0
2. Coleus: 5.5-6.0
3. Impatiens: 5.5-6.0
4. Petunia: 5.5-6.0

Non-Woody Annuals (pH 5.5 to 7.0)

1. Alyssum (Lobularia maritima): 6.0-7.0
2. Ageratum (Floss Flower): 5.5-6.2
3. Calendula (Pot Marigold): 6.0-7.0
4. Cosmos: 6.0-7.0
5. Geranium (Pelargonium): 5.8-6.5
6. Marigold (Tagetes): 6.0-7.0
7. Nasturtium: 6.1-7.8
8. Pansy (Viola tricolor): 5.4-5.8
9. Snapdragon (Antirrhinum): 6.2-7.0
10. Sunflower (Helianthus): 6.0-7.5
11. Zinnia: 5.5-7.0

Non-Woody Annuals (pH 6.5 to 8.0)

1. Baby’s Breath (Gypsophila): 6.5-7.5
2. Dianthus (Sweet William): 6.0-8.0
3. Dusty Miller (Senecio cineraria): 6.0-7.5
4. Statice (Limonium sinuatum): 6.0-8.0

Non-Woody Annuals (pH 5.5 to 7.5)

1. Bachelor’s Button (Centaurea cyanus): 6.0-7.5
2. Balsam (Impatiens balsamina): 6.0-7.5
3. Cleome (Spider Flower): 6.0-7.5
4. Cornflower (Centaurea cyanus): 5.5-7.5
5. Portulaca (Moss Rose): 5.5-7.0
6. Salvia (Salvia splendens): 5.5-7.5
7. Verbena: 5.8-7.2

Notes:

• Regular soil testing and amendments can help maintain the optimal pH range for your annuals.
• Some annuals 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 annuals.