Comprehensive Plant Database
Search and filter by soil pH, sunlight, functional traits, ecology, and safety
covering every plant type.
| Name | Scientific | Family | Form | Height | pH | Zones | Sun | Water | Difficulty | Conservation |
|---|---|---|---|---|---|---|---|---|---|---|
| Common Sunflower, Annual Sunflower, Mirasol | Helianthus annuus | Asteraceae | herb_non_graminoid | 5-12 feet | 6–7.5 | 2a - 11b | Full Sun | Water regularly during germination and early stem growth (1 inch/week). Drought tolerant once established, though consistent moisture yields larger blooms. | LC | |
| Sweet Basil, Common Basil, Genovese Basil, Great Basil | Ocimum basilicum | Lamiaceae | herb_non_graminoid | 12-24 inches (30-60 cm) | 6–7.5 | 10a - 11b (Perennial); Annual elsewhere | Full Sun | Water when the top 1-2 inches of soil are dry. Avoid overhead watering to prevent foliar diseases like downy mildew. | LC | |
| Sweet Corn, Sugar Corn, Table Corn | Zea mays | Poaceae | herb_graminoid | 5-8 feet (150-240 cm) | 5.8–7 | 2a-11b | Full Sun | Critical watering during silking and tassel emergence (1.5 inches/week); drought stress at silking causes missing kernels. | LC | |
| Sweet Pea, Garden Sweetpea | Lathyrus odoratus | Fabaceae | climber | 6-8 feet | 6.5–7.5 | 2a - 11b (Annual) | Full Sun, Partial Sun | Maintain consistent root-zone moisture; water deeply at the base early in the day to prevent powdery mildew spores from germinating on foliage. | LC | |
| Sweet Potato, Camote, Kumara | Ipomoea batatas | Convolvulaceae | climber | 0.5-1 feet (15-30 cm) | 5.5–6.5 | 9a-11b | Full Sun | Provide moderate, consistent moisture early in the season. Taper off watering 2-3 weeks before harvest to prevent root splitting and decay. | LC | |
| Sweet Woodruff, Master of the Woods, Waldmeister, Sweet-scented Bedstraw | Galium odoratum | Rubiaceae | herb_non_graminoid | 6-12 inches (15-30 cm) | 5.5–7 | 4a-8b | Partial Shade, Full Shade | Maintain even moisture; foliage may scorch or enter premature summer dormancy if soil dries out completely. | LC | |
| Swiss Chard, Silverbeet, Rainbow Chard, Mangold | Beta vulgaris | Amaranthaceae | herb_non_graminoid | 1-2 feet (30-60 cm) | 6–7 | 2a-11b | Full Sun, Partial Sun | Consistent moisture (1 inch per week); avoid soil drying out to keep stalks crisp and prevent premature bolting. | LC | |
| Switchgrass, Tall Panic Grass, Prairie Panic Grass | Panicum virgatum | Poaceae | herb_graminoid | 3-6 feet (90-180 cm) | 5.5–7.5 | 3a-9b | Full Sun, Partial Sun | Deep, infrequent watering during establishment; thrives on natural rainfall thereafter. | LC | |
| Threadleaf Coreopsis, Threadleaf Tickseed, Whorled Tickseed | Coreopsis verticillata | Asteraceae | herb_non_graminoid | 1.5-2.5 feet (45-75 cm) | 5.5–7.2 | 3a-9b | Full Sun | Low; highly drought-adapted once established. Water only in prolonged summer droughts. | LC | |
| Tomato | Solanum lycopersicum | Solanaceae | herb_non_graminoid | 3-10 feet (Indeterminate) | 6–6.8 | 9-11 (Perennial), Grown as Annual in 2-8 | Full Sun | Deep water 1-2 inches per week. Avoid wetting foliage to prevent fungal diseases. | LC | |
| Tuberous Begonia, Tuberhybrida Begonia | Begonia tuberhybrida | Begoniaceae | herb_non_graminoid | 1-1.5 feet (30-45 cm) | 5.5–6.5 | 9a-11b | Partial Shade, Full Shade | Maintain evenly moist potting medium; water at the soil level to avoid wetting foliage and crown, which incites fungal rot. | NE | |
| Garden Tulip, Didier's Tulip | Tulipa gesneriana | Liliaceae | herb_non_graminoid | 1-2 feet | 6–7.2 | 3a - 8b | Full Sun, Partial Sun | Water thoroughly after planting in autumn to promote root establishment. Provide moderate moisture during active spring growth, then withhold irrigation completely once foliage begins to senesce in summer. | LC |