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Goldencup, Mexican Tulip Poppy

Hunnemannia fumariifolia

Family: Papaveraceae (pa-pav-er-AY-see-ee) (Info)
Genus: Hunnemannia (hun-ne-MAN-nee-uh) (Info)
Species: fumariifolia (foo-mar-ee-FOH-lee-uh) (Info)



Foliage Color:


Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Where to Grow:

Unknown - Tell us


24-36 in. (60-90 cm)


15-18 in. (38-45 cm)


USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:

Full Sun


Unknown - Tell us

Bloom Color:

Bright Yellow

Bloom Time:

Mid Summer

Late Summer/Early Fall

Mid Fall



Other details:

Unknown - Tell us

Soil pH requirements:

6.6 to 7.5 (neutral)

Patent Information:

Unknown - Tell us

Propagation Methods:

From seed; direct sow outdoors in fall

From seed; sow indoors before last frost

Seed Collecting:

Allow pods to dry on plant; break open to collect seeds

Properly cleaned, seed can be successfully stored


This plant has been said to grow in the following regions:

Concow, California

Northridge, California

Simi Valley, California

Wilkes Barre, Pennsylvania

Gardeners' Notes:


On Jun 11, 2014, SFVgardengal from Northridge, CA (Zone 9b) wrote:

This drought-tolerant, gray-leaved, poppy blooms throughout the year in the San Fernando Valley (southern CA). It produces a profusion of bright yellow flowers, followed by seed-filled capsules. Reseeds itself, with restraint (we wish it would do so more often). Tends to get leggy, so it is cut back in the late fall/early winter, in 2 or 3 stages (cut back to an active node, wait for leafing out, then do second pruning, same process for 3rd pruning). Otherwise, brittle branches can break from too much weight, or even split the main stem. Individuals will last for 2+ years if pruned this way.


On Jul 17, 2003, jkom51 from Oakland, CA (Zone 9b) wrote:

This is a great plant for CA gardeners. It grows fast and blooms profusely on no summer water! The clear, light yellow flowers really stand out in sunshine and look wonderful next to 'Hidcote' lavendars. Nice lacy foliage is attractive but subtle with light gray-green color. Really has more in common with a cistus (rockrose) than other poppies; repeat bloom and relatively small size make it a good choice for a mixed Mediterranean bed. Would also look good against kangaroo paws and watsonia.


On Aug 24, 2001, Terry from Murfreesboro, TN (Zone 7a) wrote:

Named for English botanist John Hunnemann, Goldencup bears a tongue-twisting botannical name. The flowers are more crinkled than California poppies and the plant is sturdier than other poppies. The buttercup yellow blossoms appear in September and October. Technically a perennial, it is treated as an annual in zones 8 and colder.

Like other poppies, Hunnemannia seedlings are difficult to transplant; it is best to spring sow in situe and thin the seedlings to 10 inches apart.