San Diego abundanceweed
Iva hayesiana
Last reviewed: September 2026
Toxicity unknown
San Diego abundanceweed (Iva hayesiana) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
full sun
Water
medium
Size
12"–36" H × 24"–48" W
Bloom
Jun, Jul, Aug, Sep
Native to
CA
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A coarse spreading perennial with triangular gray-green leaves and inconspicuous greenish flower heads. Forms colonies along the edges of brackish marshes and alkaline seeps.
Wildlife value
Wind-pollinated flowers offer little forage value, but the plant stabilizes soil along brackish marsh edges.
Common questions
- How much sun does San Diego abundanceweed need?
- San Diego abundanceweed grows best in full sun conditions.
- When does San Diego abundanceweed bloom?
- San Diego abundanceweed blooms in June, July, August, and September.
- Where is San Diego abundanceweed native?
- San Diego abundanceweed (Iva hayesiana) is native to CA, per vouchered herbarium specimen records and regional native plant society lists.
Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
If something looks wrong
Common plant problems, and what to check first
These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Ready to grow San Diego abundanceweed? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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