Plants That Start With O

1 indoor plant begin with O: Olive Tree. Every entry below shows the facts you came for first: light, water, toxicity and mature size, with the full care guide one click away. 1 of them is safe for cats and dogs.

Plant	Light	Water	Pet-safe
Olive Tree	Olive Tree needs bright direct lig	Allow the soil around an Olive	Safe for cats & dogs	Care guide

Olive Tree

Olea europaea

LightOlive Tree needs bright direct light at 250 to 1000…
WaterAllow the soil around an Olive Tree to become almost dry…
ToxicitySafe for cats & dogs
Mature sizeIt may grow 3 to 6 ft / 1 to 2 m tall…

Olive Tree is an evergreen with narrow, lance-shaped leaves in silvery green. As it ages, the trunk develops a twisted, gnarled look that gives the plant strong character. A container-grown tree can produce small olives with proper care, although indoor fruiting is uncommon. It needs abundant direct sun and suits growers with a bright south-facing window, low humidity, and enough space for a woody specimen.

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Care notes

Olive Tree needs bright direct light at 250 to 1000 μmol·m⁻²·s⁻¹ as PPFD. Provide 6+ hours of direct sunlight each day to support dense growth and any chance of fruiting.

Placement: keep the tree within 2 ft / 60 cm of a south or southwest-facing window.
Give it an unobstructed view of the sky for the strongest available natural light.
Too little light: growth weakens, leaves may drop, and fruiting becomes unlikely.
Consider grow lights during wintertime when daylight hours are shorter. A PAR meter or PAR meter app can measure photosynthetically active radiation as PPFD (μmol·m⁻²·s⁻¹).

Questions about plants that start with O

How many indoor plants start with O?

1, as listed on this page.

Is Olive Tree safe for cats and dogs?

Safe for cats & dogs. The ASPCA lists Olea europaea as non-toxic to cats and dogs. Olive Tree is also considered non-toxic to people. Fallen leaves, twigs, or pits can still create digestive or choking concerns, so clean up debris and discourage children or pets from chewing the plant.

How much light does an Olive Tree need?

Olive Tree needs bright direct light at 250 to 1000 μmol·m⁻²·s⁻¹ as PPFD. Provide 6+ hours of direct sunlight each day to support dense growth and any chance of fruiting.Placement: keep the tree within 2 ft / 60 cm of a south or southwest-facing window. Give it an unobstructed view of the sky for th

How do I know which of these plants suits my room?

Sort by the facts strip: low-light plants for north-facing rooms, pet-safe names if you have a cat or dog, and the smaller species for shelves and desks.