Water thoroughly when the top inch of potting mix feels dry, then drain completely. Do not leave water in saucers or decorative foil sleeves. Avoid prolonged drying and wilting.
Size
1-3 ft tall and wide (10-in pot); 6-10 ft if planted out in a frost-free microclimate
Habit
Upright shrub – multi-stemmed
Toxicity
Toxic if Ingested; Sap Irritant
Description
Poinsettia (Euphorbia pulcherrima) is a tropical shrub prized for colorful winter bracts surrounding tiny flowers. ‘XL 10 in’ generally denotes a large plant sold in a 10-inch nursery pot, not a specific cultivar.
Bloom Time
Winter
Deciduous / Evergreen
Semi-evergreen
Special Features
Showy Flowers
Growth Rate
Moderate to fast
Growth Habit
Upright shrub – multi-stemmed
Mature Size
1-3 ft tall and wide (10-in pot); 6-10 ft if planted out in a frost-free microclimate
Mildly toxic if ingested (GI upset); milky sap irritates skin and eyes
Care Instructions
Light: Bright, indirect light indoors. Outdoors in Phoenix, provide filtered shade or gentle morning sun; protect from intense afternoon sun and reflected heat.
Water: Water thoroughly when the top inch of potting mix feels dry, then drain completely. Do not leave water in saucers or decorative foil sleeves. Avoid prolonged drying and wilting.
Soil: Well-drained, peat- or coir-based potting mix with perlite. Use a container with drainage holes.
Mature size: Commonly maintained at 1–3 feet tall and wide in containers. Unpruned shrubs can reach 6–10 feet tall and similarly wide in frost-free climates; Phoenix frost and summer heat limit outdoor performance.
Bloom: Typically late fall through winter. For repeat winter color, provide approximately 14 hours of uninterrupted darkness nightly for 8–10 weeks beginning in fall, with bright light during the day.
Evergreen / deciduous: Broadleaf evergreen in warm, stable conditions; may shed leaves during dormancy or in response to cold, drought, or other stress.
Growth rate: Moderate to fast during warm growing conditions.