Arum pictum
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Arum pictum

Black calla · Painted arum · Blood Red Penumbra

Tier 2 Difficulty: medium Water: low Light: partial_sun
Temperature
15–35 °C
Soil pH
6–7
Hardiness
Zone 7–10
Click count
184
Observations
435

Description

Source: wikipedia (CC BY-SA)

Arum pictum is a plant of the arum family (Araceae). It is sister to all other species in the genus Arum, and is its only autumn-flowering member of the genus.

Care Guide

💧 Water
☀️ Light Partial sun

Autumn arum originates from habitats like forest understories and rocky sites, where it occurs in natural shade. It prefers partial sun but can tolerate full sun or full shade, showing its versatile and hardy nature.

Ideal: Partial sun
🌡️ Temperature 15–35°C

Autumn arum demonstrates good adaptability to temperature, able to withstand higher heat and wide temperature fluctuations. In hot conditions, you should pay attention to watering and provide appropriate shade to avoid sunburn. On the other hand, autumn arum is relatively intolerant of low temperatures; although it can handle some cold, excessively low temperatures may cause frost damage.

Ideal temperature: 15–35°C
💨 Humidity
Humidity:
🪴 Soil 6-7
Soil pH: 6-7
🌱 Fertilizer

For Autumn arum, the primary time to apply fertilizer is in early spring while the flowers are forming. The appropriate fertilizer promotes better blooms and helps Autumn arum produce attractive flowers. Fertilizing in early spring ensures strong flowers during the season and supplies energy for dormant growth phases.

🪴 Pot & Repot
✂️ Pruning
🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity

Characteristics

Plant Type
Herb
Life Cycle
Perennial
Genus
Arum
Family
Araceae
Hardiness Zone
7-10
Mature Height
30 cm
Mature Spread
15 cm
Leaf Color
Dark Green, Green
Leaf Type
Deciduous
Flower Color
Purple
Flower Size
10.16 cm to 15.24 cm
Bloom Time
Early winter, Mid winter
Planting Time
Spring, Autumn, Winter
Harvest Time
Late winter, Early spring

Tags (5)

Common Names (3)

en Black calla
en Painted arum
en Blood Red Penumbra