Lupine Flowers in the Bay Area: Where to See Them (2026 Guide)
Lupine Flowers in the Bay Area: Anderson Lake
In April 2021, the drained bed of Anderson Lake near Morgan Hill erupted in a massive lupine super-bloom — a once-in-a-decade, right-place-right-time event I was lucky enough to catch. The lake is still drained for a dam rebuild that runs into the 2030s, but no lupine bloom has been confirmed there since 2021. Check for recent bloom reports before making the drive.
Who knew the South Bay has a huge field of lupine flowers?! I had no idea! I was so surprised when my bestie sent over this flower field and had to go check it out.
The lupine flowers started blooming on the then-waterless lakebed of Anderson Lake, and the spot is pretty easy to miss. We drove and happened to stop at a part of the road that had parking for maybe 5–8 cars on the southeast side of the lake. When we looked into the distance we could kind of see some purple, but it mostly looked like dry weeds. We didn’t have any cell service, so we decided to walk down the path anyways to see if that’s where the flowers were. After a few minutes of walking, we could see the flower field — and it is huge! There were a variety of sizes, with some flower stems as tall as me! The different heights make for great photos, so if you’re a photographer looking for photoshoot locations, this is one worth visiting. Since the field is so big, you don’t need to worry about having others in your photos.
There were birds chirping all around the field and some bees (nothing to worry about). If the lake had been filled with water, it would’ve been quite the magical location — but the contrast of happy blooming purple flowers against the dry lake was its own kind of striking.
2026 Reality Check: The Dam Project
Here’s what you need to know before going: Anderson Reservoir is still drained — it’s been held at about 3% capacity since 2020 for the Anderson Dam seismic retrofit. The project has grown into a full $2.8 billion dam rebuild, with main construction starting in early 2027 and running roughly seven years. The lakebed will likely stay exposed into the early 2030s.
What does that mean for the lupines? The 2021 bloom was a viral news event tied to the exposed lakebed, and I haven’t found confirmed bloom reports there since. Wildflower blooms are rain-dependent and unpredictable — a super-bloom one year guarantees nothing the next. The area is also transitioning into an active construction zone, so access conditions may change. Check recent trip reports and bloom trackers before driving out. This was a once-in-a-decade bloom, not a reliable annual display.
When Do Lupines Bloom in the Bay Area?
We visited in mid-April 2021 and the flowers were in full bloom. Generally, lupines in the Bay Area foothills bloom from March through April, with timing driven by winter rainfall. A wet winter followed by warm spring weather is the recipe — but even then, there’s no guarantee of a display like the 2021 one at any specific spot.
Where the 2021 Bloom Was Located
The 2021 flower field was near Morgan Hill on the southeast side of Anderson Lake, along the same road you’d take toward Henry Coe State Park on E Dunne Ave. The coordinates where we parked were (37.1554117, -121.5925038). You can also put “Woodchoppers Flat Picnic Area” into Google Maps to get close, then drive a little further to the small roadside parking area. After parking, follow the little trail near the big tree down toward the lakebed.
Note: with dam construction ramping up, parking areas and trail access in the vicinity may change. Verify access before you go.
Chasing more spring blooms? My guide to almond blossoms in Northern California covers another unreal (and more reliable) spring display in Yolo County. And for a full spring weekend itinerary, see my Downtown Napa staycation guide.
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Frequently Asked Questions
Where can you see lupine flowers in the Bay Area?
In April 2021, a spectacular lupine super-bloom appeared on the drained bed of Anderson Lake near Morgan Hill (southeast side, off E Dunne Ave). Bay Area lupines generally bloom March–April in the foothills, but displays vary wildly year to year with rainfall.
Will the lupines bloom at Anderson Lake in 2026?
Unknown. No lupine bloom at Anderson Lake has been confirmed since the 2021 event. The reservoir remains drained for a dam rebuild running into the 2030s, and the surrounding area is becoming an active construction zone. Check recent bloom reports before visiting.
When is the best time to see lupines in Northern California?
March through April is the typical window, driven by winter rain. A wet winter followed by warm spring weather produces the best displays.
Is Anderson Lake filled with water now?
No. The reservoir has been held at about 3% capacity since 2020, and the full dam rebuild means the lakebed will likely stay exposed into the early 2030s.
Is there parking near the lupine fields?
In 2021, there was informal roadside parking for about 5–8 cars on the southeast side of the lake. With dam construction underway, access and parking may have changed — verify current conditions before going.
