28 plants for a mild winter
The catalogue keeps these 28 species outdoors but records a coldest night between -10 °C and 5 °C — the band on the other side of a hard freeze. The temperature column is that floor itself, so it is the number to read before leaving one of them out for the winter.
In the table, watering runs from 3 to 28 days at medium light; 2 of the 28 want humid air.
| Plant | Water | Light | Humidity | Temperature or hardiness |
|---|---|---|---|---|
| beebalms and bergamotsMonarda | every 10–14 days | Direct sun | Low | down to 5°C outdoors |
| Bunny ears cactusOpuntia microdasys | every 14–28 days | Direct sun | Low | down to 5°C outdoors |
| CamelliaCamellia japonica | every 5–9 days | Bright | High | down to 5°C outdoors |
| catmintsNepeta | every 10–14 days | Direct sun | Low | down to 5°C outdoors |
| Common ivyHedera helix | every 7–12 days | Medium | Medium | down to 5°C outdoors |
| English lavenderLavandula angustifolia | every 7–10 days | Direct sun | Low | down to 5°C outdoors |
| GeraniumPelargonium | every 3–6 days | Direct sun | Low | down to 5°C outdoors |
| HyssopsAgastache | every 10–14 days | Direct sun | Low | down to 5°C outdoors |
| OleanderNerium oleander | every 5–7 days | Direct sun | Low | down to 5°C outdoors |
| RosemarySalvia rosmarinus | every 6–8 days | Direct sun | Low | down to 5°C outdoors |
| Sago palmCycas revoluta | every 10–18 days | Bright | Medium | down to 5°C outdoors |
| Common myrtleMyrtus communis | every 6–11 days | Bright | Medium | down to 3°C outdoors |
| Gladiolus | every 3–6 days | Direct sun | Low | down to 2°C outdoors |
| OliveOlea europaea | every 10–18 days | Direct sun | Low | down to 2°C outdoors |
| Bay treeLaurus nobilis | every 7–14 days | Bright | Medium | down to 0°C outdoors |
| PomegranatePunica granatum | every 7–12 days | Direct sun | Low | down to 0°C outdoors |
| Blue passionflowerPassiflora caerulea | every 5–10 days | Direct sun | Medium | down to -5°C outdoors |
| Japanese araliaFatsia japonica | every 5–10 days | Medium | High | down to -5°C outdoors |
| Pot marigoldCalendula officinalis | every 4–8 days | Direct sun | Low | down to -5°C outdoors |
| Bearded irisIris × germanica | every 7–12 days | Bright | Medium | down to -10°C outdoors |
| false shamrockOxalis triangularis | every 7–12 days | Bright | Medium | down to -10°C outdoors |
| FreesiasFreesia | every 7–12 days | Bright | Medium | down to -10°C outdoors |
| Garden DahliaDahlia pinnata | every 7–12 days | Bright | Medium | down to -10°C outdoors |
| Indian shotCanna indica | every 7–12 days | Bright | Medium | down to -10°C outdoors |
| Japanese laurelAucuba japonica | every 7–12 days | Low | Medium | down to -10°C outdoors |
| Madonna lilyLilium candidum | every 7–12 days | Bright | Medium | down to -10°C outdoors |
| MontbretiasCrocosmia | every 7–12 days | Bright | Medium | down to -10°C outdoors |
| Persian ButtercupRanunculus asiaticus | every 7–12 days | Bright | Medium | down to -10°C outdoors |