California Botanic Garden

Park Botanic garden specializing in California native plants

Located in Claremont, California Botanic Garden (formerly Rancho Santa Ana Botanic Garden) focuses on California native plants, with research collections, interpretive trails and seasonal events for plant enthusiasts.

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The California Botanic Garden, located in Claremont, California, is a public garden and research institution focused on the flora native to California. It began as Rancho Santa Ana Botanic Garden in 1927 and was renamed in 2019.

Visitors encounter extensive displays of native California plant communities across themed gardens and walking trails, with signage and interpretive information about regional ecology. Spring is a particularly active season for wildflowers and vegetative display, and the garden supports research, education, and native-plant conservation efforts.

Founded in 1927 to cultivate and study California plants, the institution has grown from a regional botanical collection into a combined public garden and research center. The 2019 change of name to California Botanic Garden reflected an expanded public and statewide mission.

Situated in Claremont in eastern Los Angeles County at the edge of the San Gabriel foothills, the garden is accessible from the Los Angeles metropolitan area and serves as a regional center for native-plant horticulture and education.

  • Founding and focus: Founded in 1927 as Rancho Santa Ana Botanic Garden and renamed California Botanic Garden in 2019, it emphasizes the study and display of California native plants.
  • Research and seasonal interest: Hosts research and conservation programs in addition to public garden displays, with trails and seasonal interest strongest in spring wildflower months.

What to See #

  • Gardens and collections: Living collections and demonstration gardens focus on California native plants and ecological landscaping, arranged across themed garden beds and trails in Claremont.
California Botanic Garden
1500 North College Avenue (approx.), Claremont, CA 91711
34.1117, -117.7162
Tue-Sun 9am-4:30pm, closed Mondays (hours may vary seasonally)
Adults $12, seniors/students reduced; free for children under 12 (check website for current rates)

How to Get to California Botanic Garden #

The Garden is in Claremont, east of Los Angeles. From the 10 Freeway, exit at Mountain Ave (or use local streets through Claremont); parking is available on-site and in nearby lots. The Claremont Metrolink station is a 15-20 minute walk away.

Tips for Visiting California Botanic Garden #

  • Visit the research greenhouse complex when docent-led tours are available to see rare and endemic California species.
  • Check the events calendar for seasonal plant sales and guided botanical walks focused on chaparral and native gardens.
  • Allow time for the Native Plant Garden and the Mediterranean collection-both are arranged by ecological community rather than aesthetic alone.

Best Time to Visit California Botanic Garden #

Best in spring for blooms and autumn for fewer crowds; check greenhouse events year-round for special tours and plant sales.

Spring
March-May · 55-75°F (13-24°C)
Peak blooming for many California natives; gardens are at their most colorful.
Fall
September-November · 60-85°F (16-29°C)
Less crowded and still pleasant for walks; many late-blooming species and good light for photography.
Winter
December-February · 45-65°F (7-18°C)
Quieter, with greenhouse displays and a different palette of dormant woody plants.

Weather & Climate near California Botanic Garden #

Climate

California Botanic Garden's climate is classified as Hot-Summer Mediterranean - Hot-Summer Mediterranean climate with warm summers (peaking in August) and cool winters (coldest in January). Temperatures range from 5°C to 33°C. Semi-arid with limited rainfall with a pronounced dry season.

Temperature & Rainfall
Temperature Range
33°
Warmest Month
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 18°C and lows of 5°C. Regular rainfall (85 mm).

Comfort

12°
Feels Like Cool
12°C
Temperature
18°

Weather

85 mm
Rainfall
2.7 m/s
Wind
Calm

February

February is cool with highs of 19°C and lows of 6°C. The wettest month with 89 mm of rain.

Comfort

13°
Feels Like Cool
13°C
Temperature
19°

Weather

89 mm
Rainfall
2.9 m/s
Wind
Calm

March

March is cool with highs of 20°C and lows of 7°C. Moderate rainfall (78 mm).

Comfort

14°
Feels Like Cool
14°C
Temperature
20°

Weather

78 mm
Rainfall
3.2 m/s
Wind
Light Breeze

April

April is cool with highs of 23°C and lows of 8°C. Moderate rainfall (30 mm).

Comfort

16°
Feels Like Cool
16°C
Temperature
23°

Weather

30 mm
Rainfall
3.5 m/s
Wind
Light Breeze

May

May is mild with highs of 25°C and lows of 11°C. Almost no rain.

Comfort

18°
Feels Like Mild
18°C
Temperature
11° 25°

Weather

9 mm
Rainfall
3.6 m/s
Wind
Light Breeze

June

June is mild with highs of 29°C and lows of 13°C. The driest month with just 1 mm.

Comfort

21°
Feels Like Mild
21°C
Temperature
13° 29°

Weather

1 mm
Rainfall
3.5 m/s
Wind
Light Breeze

July

July is warm with highs of 33°C and lows of 16°C. The driest month with just 1 mm.

Comfort

24°
Feels Like Warm
24°C
Temperature
16° 33°

Weather

1 mm
Rainfall
3.2 m/s
Wind
Light Breeze

August

August is the warmest month with highs of 33°C and lows of 16°C. Almost no rain.

Comfort

25°
Feels Like Warm
25°C
Temperature
16° 33°

Weather

4 mm
Rainfall
3.0 m/s
Wind
Light Breeze

September

September is mild with highs of 31°C and lows of 15°C. Almost no rain.

Comfort

23°
Feels Like Mild
23°C
Temperature
15° 31°

Weather

9 mm
Rainfall
2.8 m/s
Wind
Calm

October

October is mild with highs of 27°C and lows of 11°C. Light rainfall.

Comfort

19°
Feels Like Mild
19°C
Temperature
11° 27°

Weather

10 mm
Rainfall
2.6 m/s
Wind
Calm

November

November is cool with highs of 22°C and lows of 7°C. Moderate rainfall (47 mm).

Comfort

15°
Feels Like Cool
15°C
Temperature
22°

Weather

47 mm
Rainfall
2.6 m/s
Wind
Calm

December

December is the coolest month with highs of 19°C and lows of 5°C. Moderate rainfall (57 mm).

Comfort

12°
Feels Like Cool
12°C
Temperature
19°

Weather

57 mm
Rainfall
2.5 m/s
Wind
Calm

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