Climate matters. This page is a practical baseline. Confirm cultivar, local frost/heat conditions, mature size and regional restrictions before planting.
Hosta — Growing reference
| Scientific name | Hosta spp. |
|---|---|
| First harvest or flowering (days) | 60–90 |
| Measured from | Transplant |
| Plant spacing (cm) | 30.5–91.4 |
| Mature height (cm) | 15.2–121.9 |
| Mature spread (cm) | 30.5–152.4 |
| USDA hardiness zones | 3–9 |
| Light | Shade |
| Water | Moderate |
| Sowing method | Division |
Growing directions
Set crowns at soil level in humus-rich, consistently moist soil; avoid planting too deep or crowns may rot. Hostas tolerate deep shade but produce their best foliage color with 2–4 hours of dappled morning light. Divide large clumps every 4–5 years in early spring by slicing through the crown with a sharp spade. Slugs are the primary pest; use iron phosphate bait around vulnerable new growth.
Source and local conditions
Typical planning ranges from OpenPlantDB (CC0). Cultivar, climate, season and growing method can change these values. Confirm the seed label and local guidance before planting.
Source & verification
OpenPlantDB · CC0