Indoor Pyramid-Shaped Trees: Norfolk Island Pine and Alternatives

Only True Indoor Evergreen Tree

Norfolk Island Pine (Araucaria heterophylla) — tropical, tolerates indoor temps.

Rosemary topiary (keep cool ~50°F, dry).
Ficus benjamina or Ficus microcarpa (can be shaped, stay small if not repotted).
Tropical bonsai (search online; Denver had a bonsai artist in Golden).

Only tropical/subtropical woody plants work indoors. Temperate conifers (Alberta spruce, cedar) need winter chill and die inside.

House Plants: Diagnosing Two Problem Trees: Borer and Canker; Choosing a Large Indoor Tree for a Bar Design: Ficus, Schefflera, and More; Identifying a Braided-Trunk Indoor Tree; Identifying and Pruning a Top-Heavy Dieffenbachia; Why Your Indoor Orange Tree Isn't Flowering: Light Requirements and Pollination Facts; Best Indoor Tree for Denver South-Facing Window: Ficus benjamina; Landscape-Wide Tree Decline: Carpenter Ants Are Symptoms, Not Causes; Best Indoor Trees for a Warm Greenhouse in New York; Indoor Trees: Statement-Making Large Plants for Bright Rooms; Shrubs: The Framework Plants That Tie the Landscape Together

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