Other details: May be a noxious weed or invasive Average Water Needs; Water regularly; do not overwater Requires consistently moist soil; do not let dry out between waterings Self-sows freely; deadhead if you do not want volunteer seedlings next season
Soil pH requirements: 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline)
Patent Information: Non-patented
Propagation Methods: From seed; winter sow in vented containers, coldframe or unheated greenhouse From seed; sow indoors before last frost
Seed Collecting: Allow pods to dry on plant; break open to collect seeds
On Sep 8, 2011, Domehomedee from Arroyo Grande, CA (Zone 9a) wrote:
I'm on the central coast of California in zone 8b and this little plant does well here. It multiplies yearly by seeds and it stays tidy with little care. The leaves grow like a fan with the yellow flower coming up in the middle. Mine flower yearly in summer with average watering. They do like sun but I have some in the shade and they still flower. The seed does not germinate well in the shade.
My information says Yellow-Eyed Grass is hardy in zones 7-11, but so far, it has been hardy here in zone 5! I have been told that our area is now unofficially zone 6, but even so, that's out of the range. Another name for it is Yellow Stone.
On Apr 25, 2004, Happenstance from Northern California, CA wrote:
This is a native California species from Monterey county and north. Will grow in any soil, likes wet marshy conditions and spreads readily. It comes up all over the garden from year to year, but is easily removed. Blooms mid-late spring.
A short lived, semi-evergreen perennial from Western North America.
Has fans of sword shaped, greyish green leaves. Bears yellow with dark veins, star shaped flowers borne in succession.
Loves slightly moist, well-drained, poorish soils in full sun although they will tolerate some light shade. Dislikes winter wet.
It's never overwintered here but then I bought it labelled as a bog plant which while it will tolerate moist soil it doesn't like to be constantly wet. While grubbing out the pot this spring I was surprised to find numerous tiny seedling fans and promptly repotted them. All have flowered and produced seed pods which will be dutifully collected to stem the invasion!
This plant has been said to grow in the following regions:
Arroyo Grande, California Castro Valley, California Clayton, California Fairfield, California Richmond, California Barbourville, Kentucky Oklahoma City, Oklahoma Gold Hill, Oregon Portland, Oregon Mc Kean, Pennsylvania Freeland, Washington Kalama, Washington Olympia, Washington Port Townsend, Washington Vancouver, Washington