Blackboard Tree (Alstonia Scholaris) is a perennial tree in the Apocynaceae family with easy care difficulty. It requires moderate watering and full sun or partial shade light in USDA hardiness zones 10-12. This plant is toxic to cats and dogs — keep it out of reach of pets.

Alstonia scholaris is a large evergreen tropical tree native to southern China, tropical Asia, and Australasia, widely recognized for its medicinal, ornamental, and timber value.

Blackboard Tree

Blackboard Tree

Alstonia Scholaris

Alstonia scholaris is a large evergreen tropical tree native to southern China, tropical Asia, and Australasia, widely recognized for its medicinal, ornamental, and timber value.

Quick Facts

Type
tree
Lifecycle
perennial
Care Difficulty
Easy
Water Needs
Moderate
Light
Full Sun, Partial Shade
Hardiness Zones
10-12

Safety

⚠️
Not Pet Safe
⚠️
Not Child Safe
☠️
Toxic

Growing Conditions

Soil Types:loamy, sandy, clay
Indoor:No
Outdoor:Yes
Garden Use:shade, specimen, timber, ornamental

Care Calendar

Monthly care tasks for Blackboard Tree

Jan
Prune
Feb
Fertilize
Mar
Repot
Apr
Water+
May
...
Jun
...
Jul
...
Aug
...
Sep
...
Oct
...
Nov
...
Dec
...

Expert Care Tips

Pro tips from botanists and plant experts

Watering Tip

Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.

Humidity Trick

Group plants together to create...

Growth Hack

Rotate your plant every...

Photo Gallery10+ photos

Blackboard Tree
Blackboard Tree detail

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Taxonomy

Family:Apocynaceae
Genus:Alstonia