Is Hill Suncup safe for pets?

Yes, Hill Suncup (Tetrapteron Graciliflorum) is considered safe for cats and dogs.

Is Hill Suncup easy to care for?

Hill Suncup has a easy care difficulty rating. It requires low watering and full_sun light.

Can Hill Suncup grow indoors?

Hill Suncup is primarily an outdoor plant and may not thrive indoors without specialized conditions.

Hill Suncup (Tetrapteron Graciliflorum) is a annual herb in the Onagraceae family with easy care difficulty. It requires low watering and full sun light in USDA hardiness zones 7-10. This plant is safe for cats and dogs.

Tetrapteron graciliflorum is an annual herb native to California and Oregon, known commonly as hill suncup.

Last updated: February 2026

Hill Suncup

Tetrapteron Graciliflorum

Tetrapteron graciliflorum is an annual herb native to California and Oregon, known commonly as hill suncup.

Quick Facts

Type

herb

Lifecycle

annual

Care Difficulty

Easy

Water Needs

Low

Light

Full Sun

Hardiness Zones

7-10

Safety

🐕

Pet Safe

👶

Child Safe

✅

Non-Toxic

Growing Conditions

Soil Types:sandy, loamy, rocky

Indoor:No

Outdoor:Yes

Garden Use:groundcover, pollinator support, erosion control

Care Calendar

Monthly care tasks for Hill Suncup

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

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Taxonomy

Family:Onagraceae

Genus:Tetrapteron