Merremia tuberosa (Large Woodrose)

Merremia tuberosa yellow flower close up capturing the trumpet shape and soft texture
Merremia tuberosa trumpet shaped yellow flower with smooth petals and deep center

Botanical names: Merremia tuberosa, Ipomoea tuberosa, Operculina tuberosa

Common names: Large Woodrose, Hawaiian Woodrose, Spanish Arborvine

Family: Convolvulaceae

Origin: Asia

USDA Plant Hardiness Map

USDA Zone: 9-10

Vine or creeper plantPlant form: Climbing or creeping vine
Full sunSemi-shadeSun exposure: Full sun or bright light indoor; semi-shade
Cold toleranceCold tolerance: Frost sensitive. Protect from freezing.
Watering: Moderate. Water when top soil feels dryWatering: Moderate
Yellow, orange flowersFlower color: Yellow, orange
Suitable forSuitable for: Outdoors in the suitable USDA zone; small gardens, containers, and indoor growing
Plant attracts butterflies, hummingbirdsWildlife: Attracts butterflies and hummingbirds
Invasive plantInvasive: Can spread quickly, needs control

Merremia tuberosa (Large Woodrose) is a climber native to Asia, although it can be found across warmer regions of the world. With tuberous roots and five to seven narrow lobed, glabrous leaves, it is highly distinguishable. The flowers are a vibrant, deep yellow color, with five petal-like sepals that appear after the flower finishes blooming. The large woodrose is a favorite among gardeners for its bright flowers, which also attract butterflies and hummingbird.

The plant is only known to thrive in USDA Zone 9-11. It prefers full sun exposure and moderate water requirements, while also being able to tolerate some semi-shade. This makes it ideal for home gardens and those with limited outdoor space. If you live in a colder climate, the best way to grow this plant is in a pot, as the roots need to be kept moist and warm.

The Large Woodrose can be invasive, so make sure that you monitor it carefully and practice regular pruning and trimming.

With the right care and attention, the Large Woodrose can be a stunning addition to your garden, adding a splash of color with its yellow, orange flowers and its attractive vines. If you are looking for an eye-catching, low-maintenance plant, Merremia tuberosa may be the perfect choice for you.

Similar plants: Merremia tuberosa (Large Woodrose)

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Merremia tuberosa with green palm-like leaves and yellow flower on climbing plant
Merremia tuberosa with green palm-like leaves and small yellow flower in foliage.
Merremia tuberosa (Large Woodrose) tan dried seed pods on woody brown plant branch, close up.
Merremia tuberosa (Large Woodrose) woody stems holding star-shaped tan dried seed pods among green leaves.
Merremia tuberosa (Large Woodrose) brown fruit and seeds on a plate close up.
Merremia tuberosa (Large Woodrose) brown seeds and dried fruit sections lying on a plate.


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